Article
Materials Science, Multidisciplinary
Shu An, Yikai Liao, Sangho Shin, Munho Kim
Summary: The study demonstrates a method to fabricate high-performance Ge photodetectors on black Ge surface, achieving significant enhancement in light absorption through reducing reflection and introducing internal gain.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Multidisciplinary
Juhee Kim, Mingyun Kang, Sangjun Lee, Chan So, Dae Sung Chung
Summary: This study demonstrates a photomultiplication-type organic photodiode with an electric double layer embedded structure, showing high external quantum efficiency and responsivity. By optimizing the work function adjustment and enhancing the electron trapping efficiency, the device performance is improved, and the effects of the electric double layer on the gain generation mechanism are confirmed through numerical simulations.
ADVANCED MATERIALS
(2021)
Article
Optics
Feng Xie, Yan Gu, Zhijia Hu, Benli Yu, Guofeng Yang
Summary: A high-performance back-illuminated solar-blind ultraviolet photodetector with ultra-low dark current, broad spectral response, and fast response speed has been fabricated in this study.
Article
Energy & Fuels
Abdelkader Aissat, Lynda Chenini, Said Nacer, Jean Perre Vilcot
Summary: This study is based on the modeling and simulation of GaAsPN/GaP quantum dot solar cells, revealing that this quaternary alloy is an ideal choice for growth on Si substrates and low-cost solar cell fabrication.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Review
Chemistry, Multidisciplinary
Mohsen Rezaei, Simone Bianconi, Lincoln J. Lauhon, Hooman Mohseni
Summary: Photodetectors made from low-dimensional materials, such as quantum dots, nanowires, and two-dimensional materials, show great promise due to their high responsivities. However, it is important to note that maximizing internal gain may compromise detector performance at low light levels. The sensitivity of most low-dimensional photodetectors with internal gain is determined by junction capacitance, giving them advantages over bulk semiconductors in achieving high sensitivity.
Article
Energy & Fuels
Xinyu Pan, Xing Ju, Mengdi Yuan, Chao Xu, Xiaoze Du
Summary: Spectral beam splitting (SBS) improves photovoltaic thermal (PVT) performance, but the detailed loss mechanism in solar cells with varying spectrum is unclear. This paper establishes an optical-electrical-thermal (OET) model to clarify the light-caused interactions within solar cells. By analyzing a hetero-junction GaAs solar cell, the OET analysis shows energy losses converting to heat, leading to decreased electricity and increased temperature. The model provides insights into energy investigation and optimization for SBS applications.
Article
Materials Science, Multidisciplinary
Mohamed Shaban, Mohamed Benghanem, Abdullah Almohammedi, Mohamed Rabia
Summary: ITO/PEDOT:PSS/P3HT:PC60BM/Mg-Al organic solar cells were fabricated by optimizing P3HT and PC60BM. The study found that the optimal spin coating speed and annealing temperature were 3000 rpm and 160 degrees C, respectively. The prepared OSC showed promising performance parameters and potential for industrial applications.
Article
Chemistry, Physical
Tao Song, Daniel J. Friedman, Nikos Kopidakis
Summary: Emerging photovoltaic technologies have gained remarkable attention for their rapid efficiency growth and transition toward commercialization. Accurate efficiency measurements are crucial for these technologies, but are more complicated due to their dynamic responses and susceptibility to degradation. Comprehensive efficiency calibration and reporting steady-state efficiency are important for better comparisons between reported efficiencies.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Tobias Fritsch, Jona Kurpiers, Steffen Roland, Nurlan Tokmoldin, Safa Shoaee, Thomas Ferron, Brian A. Collins, Silvia Janietz, Koen Vandewal, Dieter Neher
Summary: The interplay between free charge carriers, charge transfer (CT) states, and singlet excitons (S-1) determines the performance of organic solar cells. In the blend, the polymer exciton dominates the radiative properties, while the non-radiative decay limits the open circuit voltage. Increasing the strength of the exciton in the optical spectra can reduce non-radiative voltage losses, not because it is more emissive. Electronic coupling between the CT state and the S-1 does not improve the open circuit voltage.
ADVANCED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Matthias Muhleis, Ingo Kroger, Jochen Hohl-Ebinger
Summary: This study introduces a fast and accurate method for solar cell characterization to determine the short-circuit current ISTC under standard test conditions. The White Light Response (WLR) method is compared to the Differential Spectral Responsivity (DSR) method and found to be significantly faster in determining current and nonlinearities. The impact of measured differential responsivities and interpolation techniques on the accuracy of short-circuit current ISTC is discussed.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Physical
Rishabh Raj, Himanshu Gupta, L. P. Purohit
Summary: In this study, five CdS/CdTe heterostructure solar cells were synthesized using various fabrication methods. The role of AZO, ZTO, and V2O5 layers in the solar cell operation was investigated through measurements of structural, optical, and electrical characteristics. The results showed that AZO, ZTO, and V2O5 layers played an important role as charge selective layers in the heterostructure solar cell, with the V2O5-equipped cell exhibiting better performance and higher efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Editorial Material
Chemistry, Physical
Joseph Hua-Hsien Liao
Summary: In the December 11, 2020 issue of Science, Al-Ashouri and colleagues reported a certified monolithic perovskite/silicon tandem solar cell with a power conversion efficiency of 29.15%. Improvements in the ideality factor and fill factor are crucial for efficient perovskite tandem solar cells, leading to a new direction in perovskite research.
Article
Energy & Fuels
Gyeong Seok Lee, Hee Jeong Shin, Sanchari Shome, Ji-Hyun Park, Seo-Jin Ko, Hyosung Choi, Yun-Hi Kim
Summary: The study reports the performance of a polymer solar cell with indoloindole as the donor block and varying degrees of fluorinated benzothiadiazole as the acceptor block. Fluorination of benzothiadiazole enhances crystallinity and planarity of the polymer backbone, leading to improved PSC properties. The solar cell using monofluorinated benzothiadiazole as donor achieved high power conversion efficiency and showed a homogeneous fibrous network in the blend film.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Najla Alnami, Rahul Kumar, Andrian Kuchuk, Yurii Maidaniuk, Samir K. Saha, Alaa A. Alnami, Reem Alhelais, Alaa Kawagy, Morgan E. Ware, Yuriy Mazur, Gregory J. Salamo
Summary: The study investigated the impact of different quantum structures in the intrinsic region of a pin junction solar cell on optical and electrical properties, with the SML-QD sample showing superior performance. Deposition of 0.25 ML InAs was found to be optimal for solar cell application.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Physical
Nora Schopp, Viktor V. Brus, Jaewon Lee, Guillermo C. Bazan, Thuc-Quyen Nguyen
Summary: The study introduces a new method to quantify exciton photogeneration, geminate and non-geminate recombination losses, and determine the mobility-lifetime product as an integrated parameter for charge transport and non-geminate recombination in organic solar cells. By utilizing common experimental methods and optical transfer matrix simulations, the new method accurately predicts the optimal active layer thickness.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Junyang Deng, Lei Zheng, Chenming Ding, Yifu Guo, Yifan Xie, Jiawei Wang, Yubin Ke, Mengmeng Li, Ling Li, Rene A. J. Janssen
Summary: This study demonstrates the reversible control of solid-state molecular orientation of polymers by tuning the supramolecular structure in solution through temperature. The experimental observations highlight the predominant role of solution-state supramolecular assembly in solid-state packing orientation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiao Ma, Haijun Bin, Bas T. T. van Gorkom, Tom P. A. van der Pol, Matthew J. J. Dyson, Christ H. L. Weijtens, Marco Fattori, Stefan C. J. Meskers, Albert J. J. M. van Breemen, Daniel Tordera, Rene A. J. Janssen, Gerwin H. H. Gelinck
Summary: Organic bulk heterojunction photodiodes (OPDs) are attracting attention in sensing and imaging. The detectivity of these OPDs is often limited by a substantial reverse bias dark current density (J(d)). Recent studies have shown that thermal charge generation mediated by mid-gap states is responsible for J(d). The temperature dependence of J(d) in state-of-the-art OPDs is reported in this study, and it is found that the dark current is attributed to thermal charge generation at the donor-acceptor interface mediated by intra-gap states near the band edges.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Haijun Bin, Junyu Li, Alessandro Caiazzo, Martijn M. Wienk, Yongfang Li, Rene A. J. Janssen
Summary: Creating new donor materials is crucial for advancing organic solar cells. The performance of regular alternating donor-acceptor (D-A) polymers can vary greatly, but this can be overcome by using random terpolymers. The use of side-chain hybridization is a promising strategy to design efficient terpolymers that are insensitive to monomer ratios.
Article
Chemistry, Multidisciplinary
Junyang Deng, Yifu Guo, Weiwei Li, Zhenhua Xie, Yubin Ke, Rene A. J. Janssen, Mengmeng Li
Summary: As a versatile class of semiconductors, diketopyrrolopyrrole (DPP)-based conjugated polymers are well suited for applications of next-generation plastic electronics because of their excellent and tunable optoelectronic properties via a rational design of chemical structures. However, it remains a challenge to unravel and eventually influence the correlation between their solution-state aggregation and solid-state microstructure.
Article
Materials Science, Multidisciplinary
Kunal Datta, Bruno Branco, Yifeng Zhao, Valerio Zardetto, Nga Phung, Andrea Bracesco, Luana Mazzarella, Martijn M. Wienk, Mariadriana Creatore, Olindo Isabella, Rene A. J. Janssen
Summary: This study demonstrates a promising technology called solar-assisted water electrolysis for storing solar energy as hydrogen fuel. By integrating a continuous flow electrochemical reactor with a monolithic perovskite-silicon tandem solar cell, light-driven electrochemical solar-to-hydrogen conversion with an energy conversion efficiency exceeding 21% is achieved at 1-Sun equivalent light intensity, and the system shows stable operation during three simulated day-night cycles.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Energy & Fuels
Dong Zhang, Kunal Datta, Valerio Zardetto, Sjoerd Veenstra, Gianluca Coletti, Rene A. J. Janssen
Summary: A new method is proposed in this paper to calculate the efficiency of perovskite/crystalline silicon (cSi) tandem cells and is validated with experiments. The maximum efficiency of about 36% is estimated for perovskite/cSi tandem cells that use the highest efficiency perovskite and cSi photovoltaic cells available currently.
Article
Energy & Fuels
Manvika Singh, Kunal Datta, Aswathy Amarnath, Fabian Wagner, Yifeng Zhao, Guangtao Yang, Andrea Bracesco, Nga Phung, Dong Zhang, Valerio Zardetto, Mehrdad Najafi, Sjoerd C. Veenstra, Gianluca Coletti, Luana Mazzarella, Mariadriana Creatore, Martijn M. Wienk, Rene A. J. Janssen, Arthur W. Weeber, Miro Zeman, Olindo Isabella
Summary: In this study, c-Si bottom cells based on high temperature poly-SiOx CSPCs were developed, and high efficiency four-terminal and two-terminal perovskite/c-Si tandem solar cells were demonstrated. By tuning the ultra-thin, thermally grown SiOx and optimizing the electrical properties of both n-type and p-type doped poly-SiOx CSPCs, conversion efficiencies of 28.1% and 23.2% were achieved in 4T and 2T tandems, respectively.
PROGRESS IN PHOTOVOLTAICS
(2023)
Article
Chemistry, Physical
Tom P. A. van der Pol, Bas T. van Gorkom, Wietse F. M. van Geel, Jibbe Littmann, Martijn M. Wienk, Rene A. J. Janssen
Summary: Insight into the identity and origin of defects in organic semiconductors is crucial for targeted strategies to overcome them. The study focuses on PM6:Y6 organic solar cells and reveals that defects are formed by a trace constituent in ambient air and O-3. Aging in H2O-saturated compressed air also increases the defect response by modifying the work function of MoO3. Measurement of energy resolved-electrochemical impedance spectroscopy and different cell structures confirm that defects mainly originate from PM6 and are located near the top electrode.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Kunal Datta, Alessandro Caiazzo, Michael A. Hope, Junyu Li, Aditya Mishra, Manuel Cordova, Zehua Chen, Lyndon Emsley, Martijn M. Wienk, Rene A. J. Janssen
Summary: Photoinduced halide segregation limits the widespread application of three-dimensional mixed-halide perovskites. In this study, we investigate the phenomenon of photoinduced halide segregation in lower-dimensional mixed iodide-bromide perovskites. We find that layered two-dimensional structures exhibit additional stability against halide demixing due to reduced halide mobility, which is supported by solid-state NMR analysis.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Alessandro Caiazzo, Arthur Maufort, Bas T. van Gorkom, Willemijn H. M. Remmerswaal, Jordi Ferrer Orri, Junyu Li, Junke Wang, Wouter T. M. van Gompel, Kristof Van Hecke, Gunnar Kusch, R. A. Oliver, Caterina Ducati, Laurence Lutsen, Martijn M. Wienk, Samuel D. Stranks, Dirk Vanderzande, Rene A. J. Janssen
Summary: 2H-Benzotriazol-2-ylethylammonium bromide and iodide and its difluorinated derivatives are synthesized and used as interlayers to passivate formamidinium lead triiodide (FAPbI3) solar cells. Their combination with PbI2 and PbBr2 forms two-dimensional Ruddlesden-Popper perovskites, improving the efficiency of the solar cells.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Yifeng Zhao, Kunal Datta, Nga Phung, Andrea E. A. Bracesco, Valerio Zardetto, Giulia Paggiaro, Hanchen Liu, Mohua Fardousi, Rudi Santbergen, Paul Procel Moya, Can Han, Guangtao Yang, Junke Wang, Dong Zhang, Bas T. van Gorkom, Tom P. A. Van der Pol, Michael Verhage, Martijn M. Wienk, Wilhelmus M. M. Kessels, Arthur Weeber, Miro Zeman, Luana Mazzarella, Mariadriana Creatore, Rene A. J. Janssen, Olindo Isabella
Summary: This work describes the development of monolithic tandem solar cells based on silicon heterojunction (SHJ) bottom-cells and perovskite top-cells. The use of light management techniques assisted by optical simulation resulted in tandem efficiencies above 23% (with a maximum of 24.6%) by engineering the bottom-cells and optimizing the interfaces between the perovskite and SHJ sub-cells.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiao Ma, Riccardo Ollearo, Bas T. van Gorkom, Christ H. L. Weijtens, Marco Fattori, Stefan C. J. Meskers, Albert J. J. M. van Breemen, Rene A. J. Janssen, Gerwin H. Gelinck
Summary: Trap states in organic semiconductors, particularly in bulk-heterojunction photodiodes, have been investigated using three sensitive techniques. The study reveals that intra-gap states in the polymers, lying above the energy of the highest occupied molecular orbital, are responsible for the reverse-bias dark current density. The results emphasize the importance of reducing the energy and density of these intra-gap states for improving the performance of near-infrared organic photodiodes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Miriam Mas-Montoya, Paula Gomez, Junke Wang, Rene A. J. Janssen, David Curiel
Summary: Interfacial layers are crucial for the performance of perovskite solar cells, and the diverse materials reported have greatly contributed to their progress. However, interfacial materials are typically developed for specific cell architectures. We have demonstrated the exceptional performance of a small molecule as a hole transporting layer (HTL) in both n-i-p and p-i-n perovskite solar cells, thanks to its self-assembling properties. This study highlights the advantages of hydrogen bonded HTLs in terms of charge extraction and recombination, regardless of the cell architecture.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Xuan Zhou, Rene A. J. Janssen, Sueleyman Er
Summary: In this study, high-throughput virtual screening was used to identify 17 quinone-based compounds as candidate cathode materials for sodium-ion batteries. These commercially available compounds were predicted to be stable and showed potential for energy applications.
Article
Chemistry, Multidisciplinary
Xuan Zhou, Abhishek Khetan, Jie Zheng, Mark Huijben, Rene A. J. Janssen, Suleyman Er
Summary: This study presents a time and resource-efficient computational approach that utilizes machine learning and semi-empirical quantum mechanical methods to explore the chemical space of approximately 200,000 quinone-based molecules as cathode materials for Li-ion batteries. By automated search and computation of battery-relevant properties, a total of 349 high-performing cathode material candidates were identified.
Article
Materials Science, Multidisciplinary
Jinfei Dai, Chenjing Zhao, Jie Xu, Hossein Roshan, Hua Dong, Francesco Di Stasio, Fang Yuan, Bo Jiao, Zhaoxin Wu
Summary: In this study, the performance of perovskite nanocrystal light emitting diodes (PNC-LEDs) was enhanced through rational device structure design and the application of high-performance perovskite nanocrystal emitting layers.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Jia-Hua Yeh, Suhendro Purbo Prakoso, Leon Lukhas Santoso, Shi-Ju Chen, Bryan Chiang, Ju-Chieh Cheng, Ru-Ning Zhang, Yu-Cheng Chiu
Summary: This study demonstrates the application of a renewable material called dextrin-SMS in the production of electret filters and transistor memory. Dextrin-SMS material can maintain prolonged electrostatic charges and has a relatively wide memory window, making it suitable for the production of biodegradable face masks and green electronics.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Ahmad Telfah, Qais M. Al-Bataineh, Ahmad A. Ahmad, Rund Abu-Zurayk, Carlos J. Tavares, Johannes Etzkorn, Farzad Foadian
Summary: Polyacrylic acid complexed with polyaniline (PAA/PANI) composite materials have the potential to form organic mixed ion-electron conductive (OMIEC) films, which can be used in optoelectronic and energy storage applications. The composite films are formed through an acid-base reaction, resulting in strong electrostatic interactions and intermolecular hydrogen bonds between PANI and PAA. The separation of PANI-rich domains from PAA-rich matrix in the composite films is observed. The electrical conductivity of the composite films is higher when the content of PANI is 33 wt%, due to the high ionic-electronic coupling at the interface between phase-separated regions.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Min-Chih Hou, Dian Luo, Yu-Ting Huang, Shun-Wei Liu, Chin-Wei Lu, Chih-Hao Chang, Hai-Ching Su
Summary: Light-emitting electrochemical cells (LECs) have great potential for novel emission applications, but their relatively low device efficiency hinders their competitiveness with other emission technologies. A study finds that increasing the concentration of small TiO2 nano-particles in the diffuser film can enhance light extraction and improve the device efficiency of LECs.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Qiaoli Niu, Yao Xu, Jun Yang, Wei Hua, Baoxiang Chai, Zequan Zhang, Yuhui Ma, Wenjin Zeng, Ana Flavia Nogueira, Ruidong Xia
Summary: By introducing CPB as a defect passivation agent in the perovskite precursor solution, the optoelectronic properties of perovskite films can be significantly improved and non-radiative carrier recombination can be effectively suppressed. CPB-modified perovskite solar cells exhibit lower trap-state density and stronger carrier migration capability, leading to enhanced power conversion efficiency and stability.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Hulya Ozturk Dogan, Fatma Yildirim, Zeynep Orhan, Ali Ben Ahmed, Mostefa Benhaliliba, Sakir Aydogan
Summary: In this study, efficient self-powered visible and UV photodetectors based on hybrid organic-inorganic materials were demonstrated. The photodetectors showed excellent UV detecting capability and good photoresponsivity.
ORGANIC ELECTRONICS
(2024)
