Article
Optics
Alok Kumar Patel, Praveen Kumar Rao, Rajan Mishra, Sanjay Kumar Soni
Summary: The study conducted numerical simulation on ultrathin CIGS solar cells, using a-Si as the hole transport layer (HTL) compared to MoTe2. By optimizing the thickness, defect density, and acceptor concentration of the absorber layer, the CIGS solar cell achieved a maximum power conversion efficiency of 30.17%.
Article
Materials Science, Multidisciplinary
Mario Ochoa, Shiro Nishiwaki, Shih-Chi Yang, Ayodhya N. Tiwari, Romain Carron
Summary: This study focuses on measuring and analyzing carrier lifetime and mobility in Cu(In,Ga)Se-2 absorbers grown under different conditions, using time-resolved photoluminescence mapping. Numerical simulations and experimental observations reveal mobilities in the range of 10-50 cm(2) V-1 s(-1) and effective minority carrier lifetime between 100 and 800 ns.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2021)
Article
Chemistry, Physical
Miao Hu, Aihua Yan, Fan Li, Fei Huang, Ji Huang, Qiaopeng Cui, Xinyang Wang
Summary: This study successfully demonstrated the construction of indium sulfide/bismuth oxybromide (In2S3/BiOBr) heterojunctions using a two-step hydrothermal method, with optimized optoelectronic dynamics leading to enhanced photocatalytic activity under visible-light irradiation. The as-synthesized IS/BOB-0.2 heterojunctions showed the highest photocatalytic ability, approximately 4.75 times and 11.26 times higher than pure BiOBr and TiO2 P25 catalysts.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Beibei Zong, Die Hu, Qing Sun, Jianguo Deng, Zizhao Zhang, Xiangxin Meng, Bo Shen, Bonan Kang, S. Ravi P. Silva, Geyu Lu
Summary: In order to improve the performance of perovskite solar cells, interface modification using 5PFP-Br dual-interface passivation is an effective way. It improves the interface contact and reduces carrier transport defect states, resulting in increased efficiency and stability of the device.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Shivani Gohri, Jaya Madan, Rahul Pandey
Summary: Thin film solar cells using copper-indium-gallium-selenium (CIGS) as the material offer a renewable energy source that can be scaled up to meet the rising demand for clean energy. In this article, a CIGS-based solar cell with In2S3 as the buffer layer is proposed, achieving an efficiency of 17.7%. By utilizing the tuneable bandgap property of CIGS, the bandgap is modified by changing the composition of the material, resulting in a maximum efficiency of 25.2% using beta grading. Optimizing the thickness of the CIGS layer is also crucial, with a thickness of 1μm found to be the optimum for CIGS-based solar cells.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Chuanxiao Xiao, Chun-Sheng Jiang, Marco Nardone, David Albin, Adam Danielson, Amit H. Munshi, Tushar Shimpi, Walajabad Sampath, Sean Jones, Mowafak M. Al-Jassim, Glenn Teeter, Nancy M. Haegel, Helio R. Moutinho
Summary: This study used an advanced transport imaging technique to directly observe the complex carrier transport profiles in polycrystalline thin-film solar cells and found that selenium diffusion plays an important role in carrier transport.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Seema Morab, Manickam Minakshi Sundaram, Almantas Pivrikas
Summary: The time-dependent charge carrier transport and recombination processes in low-mobility organic semiconductor diodes have been studied through numerical simulations. The application of a Lorentz force alters the charge transport process, resulting in the Hall effect. The results show that in the Langevin system, the charge carrier concentration is smaller and the amount of extracted charge is less. These findings are crucial for understanding the charge transport and Hall effect in organic semiconductors and improving device performance.
Article
Engineering, Environmental
C. Wang, D. Zhuang, M. Zhao, Y. Li, H. Tong, H. Wang, J. Wei, Q. Gong
Summary: This study successfully optimized the sodium content in CuInGaSSe thin film solar cells by adding and optimizing a sputtering SiO2 barrier layer on soda-lime glass. By studying the selenium content, MoSe2 thickness, quality of the p-n junction, and defects in the absorption layer, the carrier separation and recombination rates were analyzed for each part.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Zhiyong Liu, Hong-En Wang
Summary: This study demonstrates that utilizing double side chain fullerene derivative NC(70)BA as the third component material can significantly enhance the power conversion efficiency and performance of ternary organic solar cells.
Article
Engineering, Environmental
Yali Sun, Shumin Qin, Dongliang Ding, Haifeng Gao, Qing Zhou, Xuanyang Guo, Chao Gao, Haixu Liu, Yi Zhang, Wei Yu
Summary: By engineering a binary solvent of dimethylformamide (DMF)/dimethyl sulfoxide (DMSO) in the precursor solution, efficient Cu2ZnSn(S,Se)4 (CZTSSe) solar cells with carrier collection are fabricated. The replacement of DMSO with DMF results in a Cu-poor and rough film surface, leading to enhanced short-wave absorption and improved short-circuit current density. Analysis shows that the increased depletion width, built-in voltage, and reduced conduction band offset improve carrier separation and transport. This work provides insights into the performance improvement and fabrication of high-performance kesterite photovoltaics using binary solvent engineering.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Jingming Zheng, He Wei, Zhiqin Ying, Xi Yang, Jiang Sheng, Zhenhai Yang, Yuheng Zeng, Jichun Ye
Summary: This research focuses on the double-textured TOPCon structures and investigates their passivation and contact properties. By rearranging the schedules of annealing processes and the radio frequency powers of SiOx deposition, the passivation and contact properties can be regulated. The proof-of-concept perovskite/TOPCon tandem solar cells featuring the double-textured structures achieve a remarkable efficiency of 28.49%.
ADVANCED ENERGY MATERIALS
(2023)
Article
Multidisciplinary Sciences
Bo Wu, Weihua Ning, Qiang Xu, Manukumara Manjappa, Minjun Feng, Senyun Ye, Jianhui Fu, Stener Lie, Tingting Yin, Feng Wang, Teck Wee Goh, Padinhare Cholakkal Harikesh, Yong Kang Eugene Tay, Ze Xiang Shen, Fuqiang Huang, Ranjan Singh, Guofu Zhou, Feng Gao, Tze Chien Sum
Summary: Bismuth-based double perovskite Cs2AgBiBr6, despite being considered a potential candidate for high-stability perovskite solar cells, exhibits poor performance due to the strong self-trapping effect, resulting in limitations for its application in photovoltaics.
Article
Multidisciplinary Sciences
Jongchul Lim, Manuel Kober-Czerny, Yen-Hung Lin, James M. Ball, Nobuya Sakai, Elisabeth A. Duijnstee, Min Ji Hong, John G. Labram, Bernard Wenger, Henry J. Snaith
Summary: In this study, the authors demonstrate a novel method to estimate long-range mobilities of perovskite thin-films and single crystals by taking early-time carrier dynamics into account.
NATURE COMMUNICATIONS
(2022)
Article
Energy & Fuels
J. Veirman, R. Varache, M. Albaric, A. Danel, B. Guo, N. Fu, Y. C. Wang
Summary: This work investigates the wafer bulk requirements for industrial amorphous/crystalline n-type silicon heterojunction cells, exploring the variations in efficiency with bulk carrier lifetime, dark resistivity, and their ratio. Validation experiments and simulations are used to determine wafer specifications for targeted efficiency, with considerations for future efficiency improvements and commercial monocrystalline wafer availability. The study also assesses the potential for stable high efficiency device production and forecasts the evolution of wafer requirements as cell efficiency approaches 25%.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Multidisciplinary
Bo Li, Huayan Wang, Aqiang Liu, Yang Liu, Wei Pu, Ting Shen, Mengjie Li, Meidan Que, Jianjun Tian, Qilin Dai, Sining Yun
Summary: This study demonstrates the double-edged sword effects of the methylammonium chloride (MACl) additive on the properties of methylammonium lead mixed-halide perovskite (MAPbI(3-x)Cl(x)) films and perovskite solar cells (PSCs). Undesirable morphology transition occurs in MAPbI(3-x)Cl(x) films during annealing, affecting the film quality, optical properties, structure, defect evolution, and power conversion efficiency (PCE) of related PSCs. A post-treatment strategy called FAX (FA = formamidinium, X = I, Br, and Ac) is developed to inhibit morphology transition and suppress defects, resulting in a champion PCE of 21.49% and impressive stability.
Article
Energy & Fuels
Kikuo Makita, Yukiko Kamikawa, Takashi Koida, Hidenori Mizuno, Ryuji Oshima, Yasushi Shoji, Shogo Ishizuka, Tatsuya Takamoto, Takeyoshi Sugaya
Summary: This study presents a highly efficient InGaP/GaAs//CIGSe three-junction solar cell with an efficiency of 29.3% for the aperture area, the highest reported for GaAs//CIGSe-based tandem solar cells. The improved performance is achieved by using a modified smart stack technology and a specialized CIGSe cell with a flattened surface and a thin In2O3;Ce,H transparent conducting oxide layer.
PROGRESS IN PHOTOVOLTAICS
(2023)
Article
Chemistry, Analytical
Xiaowu Wang, Zhigang Zeng, Yu Fan, Xiaoer Wang, Shenghao Wang, Jiaqiang Xu
Summary: Sn1-xS-CdS superlattice nanowires with controllable synthesis exhibited fast response and good selectivity as gas sensing materials in low-temperature environments. The study investigated the dual selective gas sensing performance of Sn1-xS-CdS superlattice nanowires with tunable composition and changing crystal facets. The gas sensors based on Sn0.38S-CdS superlattice nanowires showed excellent properties, including ultrafast response to acetone and high selectivity to H2S. The gas sensing mechanism was analyzed by considering the chemical stability of gas molecules, adsorption energy, and energy band structure of the heterostructure. This research provides an efficient route for the development of high-performance multi-functional gas sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Rui Chen, Chang Liu, Yangyang Chen, Chao Ye, Shi Chen, Jinrong Cheng, Shixun Cao, Shenghao Wang, Anyang Cui, Zhigao Hu, He Lin, Jinlong Wu, Xiang Yang Kong, Wei Ren
Summary: This study developed a technique to synthesize millimeter-sized CsGeI3 single crystals using an aqueous solution, and examined their ferroelectric and photoelectric properties compared to theoretical predictions. These findings not only provide a new route for germanium-based perovskite single crystal synthesis, but also introduce potential applications in ferroelectric photovoltaics.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Lingmei Kong, Changjiu Sun, Mengqing You, Yuanzhi Jiang, Guangzhao Wang, Lin Wang, Chengxi Zhang, Shi Chen, Sheng Wang, Shengyuan A. Yang, Shenghao Wang, Yingguo Yang, Xiaoyu Zhang, Mingjian Yuan, Xuyong Yang
Summary: Researchers have achieved a record-high external quantum efficiency of 12.1% in a large-area perovskite light-emitting diode (PeLED) by using a molecular interface modifier between the perovskite layer and the underlying hole transport layer. The modifier improves the surface wettability, enhances the scalability of solution-processed perovskite films, and enhances the luminous performance of the perovskite emitters.
Article
Materials Science, Multidisciplinary
Inhee Maeng, Shi Chen, Seungjun Lee, Shenghao Wang, Young-Kyun Kwon, Min-Cherl Jung
Summary: The all-inorganic perovskite material gamma-CsPbI3 shows potential as a THz detector due to its high real conductivity and broad THz absorption spectra. It has controllable phonon vibration modes and lacks structural defects, making it a good candidate for commercialization.
MATERIALS TODAY PHYSICS
(2023)
Article
Physics, Applied
Namiki Uezono, Jiaqi Liu, Sachin A. Pawar, Muhammad Monirul Islam, Shigeru Ikeda, Takeaki Sakurai
Summary: A method for fabricating BiVO4 thin films with monoclinic-scheelite and tetragonal-zircon crystalline phases was developed using RF sputtering. The films deposited with the tetragonal-zircon phase showed a comparable photocurrent density to those with the monoclinic-scheelite phase, despite having a larger band gap. This is attributed to the reduced sputtering damage and the efficient utilization of photocarriers in the tetragonal-zircon crystal.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Article
Physics, Applied
Jiro Nishinaga, Manabu Togawa, Masaya Miyahara, Kosuke Itabashi, Hironori Okumura, Masataka Imura, Yukiko Kamikawa, Shogo Ishizuka
Summary: Radiation tolerance of Cu(In,Ga)Se-2 (CIGS) solar cells was investigated for application in extremely-high-radiation environments. The cells deteriorated after high-energy proton irradiation but could still generate power. Recombination centers in CIGS layers increased after irradiation, but heat-light annealing partially passivated them. Dark annealing also had a beneficial effect on passivating recombination centers, even with thicker CIGS layers.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Article
Physics, Applied
Shukur Gofurov, Namiki Uezono, Lingga Ghufira Oktariza, Jiaqi Liu, Sachin Pawar, Muhammad M. M. Islam, Takeaki Sakurai
Summary: BiVO4 thin films doped with sulfur at different concentrations were fabricated and characterized. The sulfur doping was found to decrease the optical bandgap and improve the photoelectrochemical performance of BiVO4. However, excessive sulfur doping resulted in a distorted crystal structure and reduced photocurrent. The study suggests that optimal sulfur doping can enhance the photoelectrochemical reaction in BiVO4 films.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Article
Physics, Applied
Siliang Cao, Yulu He, Muhammad Monirul Islam, Shaoqiang Chen, Ashraful Islam, Takeaki Sakurai
Summary: This study proposes a simple simulation method to optimize n-i-p perovskite solar cells (PSCs) using SCAPS-1D, aiming to achieve high-performance devices. Through adjustments in the structure and basic parameters of the MAPbI(3) device, including layer thickness, carrier diffusion length, interface recombination, doping concentration, and overall series resistance, a high-performance MAPbI(3) device with suppressed recombination and optimized structure is realized. This leads to an encouraging power conversion efficiency of 20.09%, an enhanced V (oc) of 1.087 V, J (sc) of 22.56 mA cm(-2) and an FF of 78.5%.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Baozhong Deng, Hong Lian, Baotong Xue, Ruichen Song, Shi Chen, Zihan Wang, Tao Xu, Hongliang Dong, Shenghao Wang
Summary: A novel solution-processable PEDOT:PSS-Nb2C hybrid HTL has been developed to enhance the performance of OSCs. By optimizing the doping ratio of Nb2C MXene, the highest PCE of 19.33% has been achieved, which is the highest value among single junction OSCs using 2D materials. The addition of Nb2C MXene improves the conductivity and work function of PEDOT:PSS by facilitating phase separation, leading to significantly enhanced device performance. The versatility of the hybrid HTL to improve the performance of OSCs based on different nonfullerene acceptors is also demonstrated.
Article
Physics, Applied
Hajime Shibata, Jiro Nishinaga, Yukiko Kamikawa, Hitoshi Tampo, Takehiko Nagai, Takashi Koida, Shogo Ishizuka, Toshimitsu Mochizuki, Masafumi Yamaguchi
Summary: The optoelectronic reciprocity theorem relates electroluminescence (EL) and photovoltaic external quantum efficiency in solar cells and is crucial for understanding solar cell operation and device evaluation. It also allows for estimating the open-circuit voltage (VOC) using the external radiative efficiency (riext) obtained from EL emission intensity. This study confirms the validity of the optoelectronic reciprocity theorem for high-efficiency CuIn1-xGaxSe2 (CIGS) solar cells and demonstrates that the diode ideality factor is unity for band-edge emission due to direct recombination.
PHYSICAL REVIEW APPLIED
(2023)
Article
Engineering, Electrical & Electronic
Tao Xu, Shenghao Wang, Yanglin Zhao, Kaiwen Zheng, Jinyan Ning
Summary: Remarkable progress has been made in organic solar cells (OSCs), which are considered as one of the most promising next-generation photovoltaic technologies. Plasmonic nanostructures have been widely used to improve the light absorption and charge extraction in OSCs, addressing the challenge of inadequate light harvesting. This article focuses on three specific plasmonic applications in OSCs, namely, broadband optical enhancement, semitransparent OSCs, and plasmonic electrodes, providing insight into the future of plasmonic-enhanced OSCs.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Physics, Applied
Wei Fu, Hiroshi Yano, Takeaki Sakurai, Akiko Ueda
Summary: In this study, the effect of biaxial tensile stress at the interface of 4H-SiC metal-oxide-semiconductor field effect-transistors on the phonon-limited mobility is investigated using theoretical calculations. The band structure under strain is obtained through first-principles calculations, and the electronic states and potential of the inversion layer at the interface are determined using the Schrodinger-Poisson method. The mobility is calculated using Fermi's golden rules. It is found that biaxial strain reduces the energy difference between the first and second conduction band minima, resulting in an increase in polar-optical phonon scattering, which becomes the dominant factor in the mobility degradation under tensile strain.
APPLIED PHYSICS EXPRESS
(2023)
Article
Chemistry, Physical
Tao Xu, Baozhong Deng, Yanglin Zhao, Zihan Wang, Gaetan Leveque, Yannick Lambert, Bruno Grandidier, Shenghao Wang, Furong Zhu
Summary: Record-performance semitransparent organic solar cells with high power conversion efficiency and average visible transmittance are developed using a low/high index optical coupling layer and a 2D photonic-structured antireflective coating.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jakapan Chantana, Bobur Ergashev, Yu Kawano, Yukiko Kamikawa, Shogo Ishizuka, Takashi Minemoto
Summary: CIGSe solar cells were fabricated on SLG substrates with the structure of Al/Ni/sputtered Zn(0.88)Mg(0.12)O:Al TCO/sputtered Zn1-xMgxO 2nd buffer/CdS 1st buffer/CIGSe/Mo/SLG. The impact of CBO2 between CIGSe absorber and Zn1-xMgxO 2nd buffer on cell performance and carrier recombination was investigated experimentally and theoretically. The optimization of CBO2 reduced carrier recombination, improved band bending, and increased the conversion efficiency up to 20.0%. With an antireflective coating layer, the CIGSe solar cell achieved a conversion efficiency of 21.1% with the optimized CBO2.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Shahriyar Safat Dipta, Md Habibur Rahaman, Walia Binte Tarique, Ashraful Hossain Howlader, Ayush Pratik, John A. Stride, Ashraf Uddin
Summary: Implementing a double-sided passivation approach can enhance the performance of n-i-p structured PSCs and improve the stability and photovoltaic properties of the cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Daniel Ourinson, Andreas Brand, Andreas Lorenz, Marwan Dhamrin, Sebastian Tepner, Michael Linse, Nathalie Goettlicher, Kosuke Tsuji, Jonas D. Huyeng, Florian Clement
Summary: This work presents two approaches to reduce the amount of silver on the rear side of M2-sized industrial iTOPCon solar cells. The Cu-based approach shows promise with similar power conversion efficiency compared to the conventional approach, while the Al-based approach exhibits some limitations but demonstrates the potential of such type of contact for iTOPCon solar cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Abasifreke Ebong, Donald Intal, Sandra Huneycutt, Thad Druffel, Ruvini Dharmadasa, Kevin Elmer, Apolo Nambo
Summary: This study demonstrates the successful metallization of a PERC silicon solar cell using screen-printable copper (Cu) paste. The Cu paste contains antioxidant additives and diffusion inhibitors to prevent oxidation and diffusion of Cu. The Cu-printed cells achieved an efficiency of 19% and showed no Cu diffusion after characterization tests. The long-term stability and effectiveness of the Cu diffusion barrier were also confirmed.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Senami Zogbo, Wilfried Favre, Olivier Bonino, Marie-Estelle Gueunier-Farret
Summary: Measuring specific contact resistivity (pc) is crucial for interface engineering in high efficiency solar cells. The Transfer Length Method (TLM) is commonly used for evaluating layer sheet resistance (Rsheet) and pc, but it is not suitable for metal/Transparent Conductive Oxide (TCO) interface evaluation in silicon heterojunction (SHJ) cells. This study investigates the parameters that restrict current confinement within the TCO, including mid-gap trap density (Dit) at the a-Si:H/c-Si interface and the activation energy (Ea = Ec - EF) variation of a-Si:H contact layers.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: The phenomenon of ribbon lengthening in PV modules exposed to thermal cycling is not well explained in the literature. In this study, a three layers model is proposed to explain this effect, and the predictions of the model are validated through finite element method simulations and experiments. The results show that the model predictions are consistent with the indirect measurements, but not with the direct measurements. Additionally, it is inferred that the encapsulant plays a role after the solder failure.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: This study investigates the problematic ribbon lengthening observed in PV modules exposed to high amplitude thermal cycling. A simplified system model is proposed and accurate predictions are obtained using the Finite Element Method. The results show that the thickness of the encapsulant has a substantial impact on the lengthening of the ribbons.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Catalan-Gomez, E. Martinez Castellano, M. Schwarz, M. Montes Bajo, L. Dorado Vargas, A. Gonzalo, A. Redondo-Cubero, A. Gallego Carro, A. Hierro, J. M. Ulloa
Summary: This study investigates the use of core-shell gallium nanoparticles as functional light scatterers on solar cells. By optimizing the nanoparticle size, the short-circuit current of the solar cells is significantly improved. The underlying physical mechanism is studied through optical measurements and simulations, and a method to reduce the plasmonic effect of the nanoparticles is demonstrated.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
M. Gamel, G. Lopez, A. M. Medrano, A. Jimenez, A. Datas, M. Garin, I. Martin
Summary: In this study, a highly reflective ohmic contact to p-type c-Ge material is demonstrated, which can improve the efficiency of thermophotovoltaic devices. The experimental results show that this contact can simultaneously meet the requirements of good back surface passivation, low electrical resistivity, and high reflectivity. Moreover, simulations suggest that implementing these back contacts has the potential to achieve conversion efficiencies comparable to high-efficiency c-Ge TPV cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hongyang Wei, Qing Xu, Dongchu Chen, Min Chen, Menglei Chang, Xiufang Ye
Summary: This study prepared solar selective absorption films based on anodic aluminum oxide (AAO) photonic crystals using a unique electrodeposition method. The Co-Ag electrodeposited film exhibited superior solar selective absorption properties and thermal stability.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Ankit Kumar, Ankit Chauhan, Jordi Llobet, Helder Fonseca, Patricia C. Sousa, Carlos Calaza, Gil Shalev
Summary: This study found that decorating subwavelength arrays with SiO2 quasi-nanolenses (qNL arrays) can enhance the absorption of the solar spectrum. Optical absorption mechanisms in qNL arrays were investigated using near-field scanning optical microscopy (NSOM), revealing that the enhancement is a result of the combination of effective antireflection coating, increased optical interactions between adjacent dielectrics for elevated light trapping, and strong light concentration due to the presence of qNLs.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Pingel, T. Wenzel, N. Goettlicher, M. Linse, L. Folcarelli, J. Schube, S. Hoffmann, S. Tepner, Y. C. Lau, J. Huyeng, A. Lorenz, F. Clement
Summary: This study demonstrates the potential to reduce silver consumption in highly efficient SHJ cells through fine-line screen printing using low temperature paste with various screens. The results show that using finer mesh allows for narrower grid fingers and lower resistance, leading to improved cell efficiency. Simulation results indicate that module wire configuration is crucial for reducing silver consumption.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Xibo He, Jun Qiu, Wei Wang, Yicheng Hou, Yong Shuai
Summary: This paper proposes a novel phase change material with high thermal conductivity and stability for fast photo-thermal conversion and storage. The experimental results demonstrate excellent durability and stability of the phase change material, with good performance in thermal conductivity and thermal storage efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Qingyuan Liu, Lin Wang, Zheng Liu, Guohua Liu
Summary: A new evaporating structure consisting of liquid marble with tunable nanowire array is proposed to enhance solar evaporation. The experiments show that the liquid marble with nanowire array exhibits outstanding evaporation performance, which has significant implications for seawater desalination or wastewater treatment.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hao Liu, Qiming Liu, Jinpei Liu, Yonggang Zhao, Yingjie Yu, Yue An, Ganghui Wei, Yanzheng Li, Yujun Fu, Junshuai Li, Deyan He
Summary: Moisture in the air is identified as the main cause of performance degradation in organic-inorganic hybrid solar cells. Exposure to air leads to the growth of thin oxide layer on the interface and the formation of silver sulfide, increasing the series resistance and decreasing the fill factor, thus degrading the cell performance.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
E. Blanco, P. Martin, M. Dominguez, P. Fernandez-Palacios, I. Lombardero, C. Sanchez-Perez, I. Garcia, C. Algora, M. Gabas
Summary: This study addresses the lack of optical parameters for p-type Ge wafers by determining the complex refractive indices of commercial Ge wafers with varying doping levels. The obtained data successfully reproduces the critical points associated with interband transitions and absorption features below the bandgap. The refractive indices were validated through experimental measurements and solar cell simulations.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)