Article
Chemistry, Multidisciplinary
Hongling Guo, Rutao Meng, Gang Wang, Shenghao Wang, Li Wu, Jianjun Li, Zuoyun Wang, Jiabin Dong, Xiaojing Hao, Yi Zhang
Summary: The bandgap-graded absorber layer was successfully realized in the CZTSSe film through sufficient annealing during the deposition of an Al-doped ZnO film, promoting solid-state ion-exchange reaction at the heterojunction interface.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Han Xu, Sijie Ge, Tao Wang, Ening Gu, Xianzhong Lin
Summary: This study reports an effective Li-doping strategy for preparing CZTSSe thin film on a flexible Mo foil substrate via the doctor-blading approach, and investigates the effect of Li doping on device performance. The results demonstrate that an appropriate Li-doping content enhances the performance of CZTSSe thin film solar cells.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Physical
Mingrui He, Xian Zhang, Jialiang Huang, Jianjun Li, Chang Yan, Jihun Kim, Yi-Sheng Chen, Limei Yang, Julie M. Cairney, Yu Zhang, Shiyou Chen, Jinhyeok Kim, Martin A. Green, Xiaojing Hao
Summary: The incorporation of lithium in kesterite Cu2ZnSn(S,Se)(4) (CZTSSe) materials has been experimentally proven to improve electronic quality in photovoltaic devices. A solution-based lithium post-deposition treatment was reported to further enhance efficiency by uniformly incorporating lithium into grain interiors, leading to a significant efficiency boost from 9.3% to 10.7%.
ADVANCED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Na Zhao, Yingrui Sui, Fancong Zeng, Meiling Ma, Tianyue Wang, Zhanwu Wang, Lili Yang, Fengyou Wang, Huilian Liu, Bin Yao
Summary: This study reports on a bismuth (Bi) doping strategy to improve the surface morphology of a solution-processed CZTSSe film, leading to higher efficiency in solar cells. By using a two-step selenization strategy to facilitate Bi-doped CZTSSe phase formation, the crystalline quality of the absorber is improved, carrier mobility is increased, and band tailing is reduced, resulting in a cell efficiency of 6.94%.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Nanoscience & Nanotechnology
Yanping Guo, Jichun Zhu, Dongxing Kou, Wenhui Zhou, Zhengji Zhou, Shengjie Yuan, Yafang Qi, Yuena Meng, Litao Han, Zhi Zheng, Sixin Wu
Summary: The kesterite Cu2ZnSn(S,Se)(4) (CZTSSe) solar cells have shown a continuous rise in power conversion efficiencies in the past years. In this work, the researchers imposed an additional plasmonic local electric field into the CdS/CZTSSe interface using a two-dimensional (2D) ordered Au@SiO2 NP array. The results showed that the imposed local electric field improved the charge extraction and recombination processes, leading to a significant increase in cell efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Yonggang Zhao, Qiaogang Song, Zhineng Zhou, Yufei Chen, Ying Zhang, Lang Wu, Xu Su, Xinghuan Hu, Shurong Wang
Summary: The study investigates the effects of post-heating treatment (PHT) temperature on the properties of precursor films, absorber layer films, and photovoltaic devices. The results show that PHT can significantly improve device efficiency and reduce surface holes on the absorber layer.
Article
Materials Science, Multidisciplinary
Dongyue Jiang, Yingrui Sui, Wenjie He, Zhanwu Wang, Fengyou Wang, Bin Yao, Lili Yang
Summary: By optimizing the sodium doping concentration in the (NaxCu1-x)(2)ZnSn(S,Se)(4) films, significant improvements in crystal quality and optical-electrical characteristics can be achieved, leading to an increase in photovoltaic conversion efficiency.
Article
Materials Science, Multidisciplinary
Sijie Ge, Han Xu, Tao Wang, Ening Gu, Xianzhong Lin, Guowei Yang
Summary: Although the efficiency of CZTSSe thin film solar cell has exceeded 13%, the deposition method used is not cost-effective and efficient. This study reports the use of scalable inkjet printing method in ambient air to deposit high-quality CZTSSe thin film absorber. CZTSSe devices with the highest efficiency achieved through inkjet printing method, demonstrating the potential of inkjet printing for cost-effective CZTSSe solar cells fabrication.
ACS MATERIALS LETTERS
(2023)
Article
Energy & Fuels
Xiatong Qin, Bin Xu, Jianjun Lin, Jiaqi Chen, Hanyu Tong, Ye Chen, Pingxiong Yang, Junhao Chu, Lin Sun
Summary: This study investigates the influence of different precursor films on the secondary phases and intrinsic defects of the CZTSSe absorber layer. The results show that the quaternary selenide precursor film improves the efficiency of CZTSSe solar cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Chemistry, Multidisciplinary
Woo-Lim Jeong, Junsung Jang, Jihun Kim, Soo-Kyung Joo, Mun-Do Park, Hoe-Min Kwak, Jaeyoung Baik, Hyeong-Jin Kim, Jin Hyeok Kim, Dong-Seon Lee
Summary: By depositing quantum dot-based luminescent down-shifting layers on CZTSSe solar cells, the UV response and short-circuit current of the cells were enhanced, resulting in a maximum conversion efficiency of 7.3%. This study also demonstrated the experimental application of LDS layers for CZTSSe solar cells for the first time.
Article
Chemistry, Multidisciplinary
Fancong Zeng, Jingshu Wang, Meiling Ma, Na Zhao, Tianyue Wang, Guangbo Chen, Bin Yao, Yingrui Sui
Summary: The Cu2Ni0.05Zn0.95Sn(S,Se)(4) (CNZTSSe) films were successfully synthesized by sol-gel combined with selenidation treatment. The optimization of selenidation conditions resulted in smooth and dense films with improved crystallinity. The increase in selenidation time led to a decrease in band gap and enhanced open circuit voltage (V-oc) of the CNZTSSe films. Through nickel doping, the formation of Zn-related defects was effectively suppressed. The CNZTSSe film with a selenidation time of 15 min showed the highest carrier concentration and the best device efficiency.
Article
Materials Science, Ceramics
Tianxiang Zhou, Jie Huang, Yushan Wang, Quanbin Liu, Shuyi Han, Bin Yao, Yuhong Jiang, Yongfeng Li, Yang Liu
Summary: By adding an AZTSe layer to traditional solar cells, the open circuit voltage and power conversion efficiency can be significantly increased, making it a potentially effective method.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
JiaYong Zhang, Bin Yao, Zhanhui Ding, Yongfeng Li, Ting Wang, Chunkai Wang, Jia Liu, Ding Ma, Dongxu Zhang
Summary: A CuSe intermediate layer is added between CZTSSe and Mo electrode to reduce carrier recombination and improve power conversion efficiency. By optimizing the thickness of CuSe intermediate layer, the power conversion efficiency is increased from 7.52% to 10.09%. The improvement in power conversion efficiency is mainly attributed to the enhancement in filling factor, short-circuit current density, and open-circuit voltage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Ziqi Zhang, Yanlong Qi, Weiqiang Zhao, Jingling Liu, Xinsheng Liu, Ke Cheng, Zuliang Du
Summary: An effective and versatile method to improve the Voc and efficiency of Cu2ZnSn(S, Se)(4) solar cells through bandgap engineering was presented in this work. A sharp surface bandgap gradient with larger surface bandgap was constructed simply by sputtering a nanoscale Cu2ZnSnS(4) layer on the surface of Cu2ZnSn(S, Se)(4) absorber. The achieved best efficiency was 9.9% with a Voc of 450 mV, a Jsc of 35.26 mA/cm(2) and a fill factor (FF) of 62.73%.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Xiang Li, Xinghuan Hu, Hua Liao, Shuai Yang, Xinyu Li, Qiulian Li, Xin Liu, Yonggang Zhao, Shurong Wang
Summary: This study demonstrated a simple and reproducible two-step annealing process to prepare CZTSSe thin film with band-gap grading. The effects of PSS treatment on the composition and electrical properties of the film were investigated. It was found that the PSS treatment improved the composition and electrical performance of the CZTSSe thin film.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Endocrinology & Metabolism
Wei Dong, Xiaoxiao Xu, Yao Luo, Chang Yang, Ying He, Xiaofei Dong, Jiawei Wang
Summary: The study demonstrated that PTX3 can induce osteogenic differentiation in an inflammatory environment by activating the HA/CD44/FAK/AKT positive feedback loop, and promote bone regeneration after periodontitis.
Article
Chemistry, Physical
Jiangtao Chen, Xiaofei Dong, Lunlin Shang, Jianbiao Chen, Yun Zhao, Bingjun Yang, Zhiguo Wu, Yan Li
Summary: The hysteresis effect of the current-voltage characteristic for magnetron sputtered molybdenum disulfide (MoS2) nanocrystalline films was investigated, revealing a significant impact of vacuum pressure on the hysteresis with pressure rise leading to more prominent hysteresis. Additionally, the current-voltage behaviors of MoS2 films using different electrodes configuration were demonstrated, with an observed current hysteretic effect and increasing current with voltage sweeping times.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Jie Wang, Xiaoyan Ma, Liying Su, Chunhui Zhang, Xiaofei Dong, Chao Teng, Lei Jiang, Cunming Yu
Summary: A perforated kelp membrane (PKM) was fabricated using natural kelp as a raw material, showing excellent mechanical properties and high oil/water separation efficiency under complex conditions. The PKM can completely degrade after 30 days under natural conditions, making it a promising candidate for oil/water separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Xiaofei Dong, Siyuan Li, Hao Sun, Qian He, Yun Zhao, Yan Li
Summary: A simple Mo pretreatment method is proposed in this study, which can significantly improve the microstructure formation of CZTSSe film and suppress the over-selenization of the Mo electrode, resulting in an enhanced cell efficiency. These findings are of great significance for optimizing the absorber layer structures in high-efficient CZTSSe thin-film solar cells.
Article
Cell Biology
Xiaofei Dong, Chang Yang, Yao Luo, Wei Dong, Xiaoxiao Xu, Yanru Wu, Jiawei Wang
Summary: By inhibiting the signaling pathways of endoplasmic reticulum stress, USP7 promotes chondrocyte proliferation and suppresses apoptosis and inflammatory response under TNF-alpha-induced inflammation.
OXIDATIVE MEDICINE AND CELLULAR LONGEVITY
(2022)
Article
Energy & Fuels
Tingting Zheng, Xiaofei Dong, Fengxia Yang, Lei Yu, Xudong Sun, Jiangtao Chen, Chengwei Wang, Yun Zhao, Yan Li
Summary: This study proposes an approach of heat treating Cu2ZnSnS4 precursor films to regulate the electronic properties of CZTSSe absorbers, effectively increasing the VOC for high efficient CZTSSe solar cells. The results show that proper heat-treating temperature significantly improves the electric property of the absorber layers and enhances the device efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Green & Sustainable Science & Technology
Xiaofei Dong, Wentao Gan, Ying Shang, Jianfu Tang, Yaoxing Wang, Zhifeng Cao, Yanjun Xie, Jiuqing Liu, Long Bai, Jian Li, Orlando J. Rojas
Summary: Wood, a renewable resource, has various applications in construction and other industries. A new process has been developed to transform low-value wood and biomass residuals into materials with mechanical properties comparable to metals and other structural elements.
NATURE SUSTAINABILITY
(2022)
Article
Environmental Sciences
Xiaofei Dong, Bin Chen, Teruya Maki, Guangyu Shi, Minzheng Duan, Bushra Khalid
Summary: During dust events, aerosols transported from Asian deserts to eastern Asia deposition areas, such as China, contain abundant bioaerosols. The occurrence of dust events alters the structure of bacterial communities and increases their diversity.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Yi Zhan, Jun Qiao, Shanshan Chen, Xiaofei Dong, Yuanming Wu, Zhen Wang, Xiaoyuan Wang
Summary: This study aimed to improve the production of colanic acid in E. coli by modifying metabolic pathways. Strategies of deleting genes related to acetate production, O-antigen synthesis, and overexpressing genes involved in lipid carrier synthesis were implemented. The engineered strain achieved significantly higher colanic acid production compared to the control strain.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Chemistry, Physical
Fengxia Yang, Xiaofei Dong, Lei Yu, Xudong Sun, Jiangtao Chen, Yun Zhao, Yan Li
Summary: The cation ratio in Cu-poor and Zn-rich CZTSSe absorbers plays a key role in determining the photovoltaic performance of CZTSSe solar cells. The study found that a Zn/Sn ratio of 1.2 can lead to the highest efficiency and superior photovoltaic performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Psychology, Biological
Ruonan Zhao, Wenxia Ma, Chieh Li, Mo Yang, Siyu He, Ningning Mao, Xiaofei Dong, Lixia Cui
Summary: Attentional bias to threat cues is maladaptive for individuals with high trait anxiety (HTA), but may become adaptive when the dangers signaled by these cues can be controlled by timely actions. The current study examined whether trait anxiety is associated with an impaired attention model for controllable threat cues and explored the related underlying neural mechanisms. Results showed that HTA individuals had impaired attention for processing controllable threat cues and weak inhibitory control, as reflected by their N1 and N2 amplitudes in comparison to low trait anxiety (LTA) individuals.
BIOLOGICAL PSYCHOLOGY
(2023)
Article
Energy & Fuels
Xudong Sun, Lei Yu, Fengxia Yang, Xiaofei Dong, Jiangtao Chen, Xuqiang Zhang, Yun Zhao, Yan Li
Summary: This study investigates the correlation between device performance and microstructure of the back interface by introducing in-situ anodized MoO3 porous arrays as the back interfacial contact. The optimized device efficiency is improved to 9.00% from 6.31%, with a 32% increase in JSC and a 64% increase in FF. This preliminary finding suggests that this new strategy is effective in forming reliable electrical contact at the back interface for high-efficient CZTSSe solar cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Chemistry, Physical
Xiaofei Dong, Siyuan Li, Hao Sun, Lijuan Jian, Wenbin Wei, Jianbiao Chen, Yun Zhao, Jiangtao Chen, Xuqiang Zhang, Yan Li
Summary: This study presents a novel architecture of p-type Cu2ZnSnS4@BiOBr nanosheets embedded in poly(methyl methacrylate) (PMMA) films (CZTS@BOB-PMMA) as a switching layer. This architecture not only exhibits bipolar resistive switching characteristics, but also shows electrical-and near-infrared light-induced synapse plasticity and electrical-driven excitatory postsynaptic current, spiking-time-dependent plasticity, paired pulse facilitation, long-term and short-term memory, and learning-forgetting-learning behaviors. This approach is a valuable contribution to the research of optoelectric controllable memristive devices for building neuromorphic architectures mimicking human brain functionalities.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Proceedings Paper
Art
Xiaofei Dong, Xuesen Zong, Peng Li, Jinlong Wang
Summary: By combining the ARIMA model and LSTM model, the ARIMA-LSTM model based on IoT data can predict the economic development of enterprises more accurately.
INTELLIGENT TECHNOLOGIES FOR INTERACTIVE ENTERTAINMENT, INTETAIN 2021
(2022)
Article
Engineering, Aerospace
Xiaofei Dong, Zhang Ren
Summary: A new distributed leaderless cooperative guidance algorithm is proposed for multi-directional saturation strikes against maneuvering targets. It uses a finite-time disturbance observer to estimate the target's maneuvers and designs guidance laws that satisfy impact time and LOS angle constraints. Nonlinear stability analysis is utilized to avoid numerical singularities, and the effectiveness of the algorithm is demonstrated through numerical simulation.
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)