Article
Chemistry, Physical
Motoshi Nakamura, Ching Chang Lin, Chie Nishiyama, Keishi Tada, Takeru Bessho, Hiroshi Segawa
Summary: The effect of ion bombardment during ITO sputtering on PVK solar cells was found to be non-detrimental and even improved the power conversion efficiency by enhancing band alignment through oxidation of the hole transport layer (HTL). By eliminating the use of the MoOx buffer layer, the researchers were able to develop more durable and higher transmittance semi-transparent PVK cells.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Motoshi Nakamura, Ching Chang Lin, Chie Nishiyama, Keishi Tada, Takeru Bessho, Hiroshi Segawa
Summary: It was found that ion bombardment during ITO sputtering can improve the device performance and increase the power conversion efficiency of PVK solar cells. The use of a MoOx buffer layer can be eliminated to develop semitransparent PVK cells with higher durability and transmittance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
G. Shankar, P. Kumar, B. Pradhan
Summary: In this study, it was demonstrated that the all-perovskite metal halide tandem solar cell exhibits higher power conversion efficiency compared to a single-junction cell, with an almost 54% increase achieved through improved tandem configuration.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Multidisciplinary Sciences
Erkan Aydin, Esma Ugur, Bumin K. Yildirim, Thomas G. Allen, Pia Dally, Arsalan Razzaq, Fangfang Cao, Lujia Xu, Badri Vishal, Aren Yazmaciyan, Ahmed A. Said, Shynggys Zhumagali, Randi Azmi, Maxime Babics, Andreas Fell, Chuanxiao Xiao, Stefaan De Wolf
Summary: A high power conversion efficiency of 32.5% for perovskite/silicon tandem solar cells is achieved through improved charge transfer at the amorphous indium zinc oxide interconnecting layer and reduced optical losses at the front and rear electrodes.
Article
Energy & Fuels
Hu Quee Tan, Haoming Liang, Maximilian Krause, Xinhai Zhao, Radha Kothandaraman, Romain Carron, Ayodhya N. Tiwari, Fan Fu, Erik Birgersson, Yi Hou, Hansong Xue
Summary: This study develops a comprehensive opto-electronic-electric model to predict the current-voltage characteristics of four-terminal (4T) tandem solar cells (TSCs) while accounting for variability in the optical and recombination parameters (ORPs) during fabrication. The model is calibrated and validated using 48 in-house fabricated transparent perovskite solar cells and a CIS bottom cell, capturing the variations in ORPs with perovskite layer thickness. The errors in models assuming constant ORPs are demonstrated, and methods to improve TSCs efficiency above 30% are discussed.
Article
Chemistry, Physical
Vivek Babu, Mario Alejandro Mejia Escobar, Rosinda Fuentes Pineda, Mateusz Scigaj, Pierpaolo Spinelli, Konrad Wojciechowski
Summary: Multijunction all-perovskite solar cells have great potential for achieving record high power conversion efficiency values, especially when using flexible substrates that provide new commercial exploitation routes. The current state-of-the-art for flexible perovskite tandem devices is limited to small areas and non-scalable fabrication methods. This study reports the development of large-area blade-coating of wide- and narrow-bandgap perovskite photoactive layers on flexible substrates, achieving high efficiency and promising reliability.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Physical
Ying Chen, Zhiqin Ying, Xin Li, Xinlong Wang, Jiarui Wu, Ming Wu, Jingsong Sun, Jiang Sheng, Yuheng Zeng, Baojie Yan, Xi Yang, Jichun Ye
Summary: The use of self-sacrifice alkali acetate seed layer enables efficient defect passivation and interfacial energy band alignment, leading to the fabrication of high-efficiency and stable perovskite solar cells. This approach has achieved a record efficiency in semitransparent perovskite solar cells and in tandem perovskite/silicon solar cells.
Article
Energy & Fuels
Ahmed-Ali Kanoun, Souraya Goumri-Said, Mohammed Benali Kanoun
Summary: This study evaluates the device performance of using CH3NH3PbI3 perovskite as top sub-cells in tandem solar cells, finding that optimizing thickness and doping concentration can improve device performance and tandem efficiency.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Somayeh Moghadamzadeh, Ihteaz M. Hossain, Moritz Loy, David Benedikt Ritzer, Hang Hu, Dirk Hauschild, Adrian Mertens, Jan-Philipp Becker, Amir A. Haghighirad, Erik Ahlswede, Lothar Weinhardt, Uli Lemmer, Bahram Abdollahi Nejand, Ulrich W. Paetzold
Summary: This study demonstrates a significant increase in photocurrent for all-perovskite tandem solar cells by removing the hole-transport layer and using hydrogen-doped indium oxide electrodes. The IO:H-based solar cells achieved a higher power conversion efficiency compared to the commonly used ITO, highlighting the potential of utilizing this material in photovoltaic applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Dan Wang, Shunwei Yao, Yening Zhong, Lin Peng, Tingting Shi, Jin Chen, Xiaolin Liu, Jia Lin
Summary: This study presents a four-terminal tandem solar cell by mechanically stacking wide-bandgap CsPbI3 and low-bandgap CZTSSe, with optimized layer thickness to improve absorption. The impact of doping concentration, energy band-bending, and built-in electrical field on solar cell performance is also discussed.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Energy & Fuels
Pei-Huan Lee, Ting-Tzu Wu, Chia-Feng Li, Damian Glowienka, Yu-Xuan Huang, Shih-Han Huang, Yu-Ching Huang, Wei-Fang Su
Summary: Two issues, including damage to the underlying absorber and low average near-infrared transmittance of transparent electrodes, are resolved by using a SnO2 layer as a protective and work function-modifying layer in fabricating four-terminal perovskite/silicon tandem solar cells.
Article
Nanoscience & Nanotechnology
Hyunmin Jung, Geunjin Kim, Gyeong Sun Jang, Jihoo Lim, Moonyong Kim, Chan Su Moon, Xiaojing Hao, Nam Joong Jeon, Jae Sung Yun, Helen Hejin Park, Jangwon Seo
Summary: This report discusses indium oxide doped with titanium and tantulum as a high near-infrared transparent electrode potentially replacing traditional indium tin oxide electrodes. Utilizing this electrode in semitransparent perovskite devices can improve device performance by reducing defect sites and modifying energy alignment. Additionally, incorporating this indium oxide-based electrode in both top and bottom electrodes of semitransparent perovskite solar cells can enhance photocurrent response and performance in tandem configurations.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Shaohua Ma, Weidong Zhu, Tianjiao Han, Chunfu Zhang, Peng Gao, Yonggang Guo, Zhicheng Song, Yufeng Ni, Dayong Qiao
Summary: By using the combined strategies of the Pb(SCN)(2) additive and air annealing, high-quality Cs(0.22)FA(0.78)Pb(I0.85Br0.15)(3) perovskite films with a wide bandgap (1.65-1.80 eV) and favored properties were successfully synthesized. With the desired films, the average efficiencies of semitransparent perovskite solar cells were significantly improved from 18.13% to 20.35%. Furthermore, a milestone efficiency of 30.32% was achieved in a four-terminal perovskite/TOPCon tandem solar cell using the semitransparent perovskite cell due to its excellent performance and preferred optical properties.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Tianjiao Han, Weidong Zhu, Tianran Wang, Mei Yang, Yuanbo Zhou, He Xi, Peng Zhong, Dazheng Chen, Jincheng Zhang, Chunfu Zhang, Yue Hao
Summary: This study developed two-terminal, mechanically-stacked perovskite/silicon tandem solar cells with an MXene interlayer, achieving high power conversion efficiencies through optimized interfacial carrier transportation and light transmission.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinhai Zhao, Hu Quee Tan, Erik Birgersson, Wei Chen, Yi Hou, Hansong Xue
Summary: In this study, an optoelectronic model is developed to understand the underlying physics and influential parameters of two-terminal perovskite/organic tandem solar cells. The effects of surface coverage, bulk, and sheet resistances on charge carrier recombination are investigated. Furthermore, a pathway towards achieving high efficiency is identified.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Energy & Fuels
Vishvak Kannan, Adrian Fisher, Erik Birgersson
Summary: The safety of Li ion batteries is crucial, especially in transport applications, due to potential catastrophic scenarios from overheating. This study evaluated uncertainties in thermal management systems and multiphysical phenomena, finding that the melting temperature of the phase change material had the most influence on battery safety. Through Monte Carlo simulations and sensitivity analysis, the probability of sub-optimal unsafe scenarios was estimated by analyzing the distribution of maximum temperature within the battery. Additionally, reduced surrogate models with 92% accuracy were obtained using supervised machine learning algorithms.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Hu Quee Tan, Xinhai Zhao, Aoran Jiao, Erik Birgersson, Hansong Xue
Summary: Perovskite solar cells have potential for use in tandem devices due to their tunable bandgap and high efficiency. This paper proposes a bifacial design for perovskite tandem cells that considers both light absorption and recombination losses. By using sensitivity analysis and a physics-based machine learning approach, the optimal design for a bifacial four-terminal all-perovskite tandem solar cell is predicted under different albedo conditions. The study also quantifies the change in recombination losses for the bottom sub-cell at different albedo levels, providing a feasible pathway to improve the power output of the tandem device.
Article
Energy & Fuels
Xinhai Zhao, Hu Quee Tan, Erik Birgersson, Hansong Xue
Summary: An optoelectronic model for a two-terminal all-perovskite tandem solar cell is developed, and the performance of the cell is investigated by adjusting layer thicknesses, increasing carrier mobility, and reducing recombination loss. The model achieves a power conversion efficiency of 30.5%.
Article
Energy & Fuels
Wei Chen, Yudong Zhu, Jingwei Xiu, Guocong Chen, Haoming Liang, Shunchang Liu, Hansong Xue, Erik Birgersson, Jian Wei Ho, Xinshun Qin, Jingyang Lin, Ruijie Ma, Tao Liu, Yanling He, Alan Man-Ching Ng, Xugang Guo, Zhubing He, He Yan, Aleksandra B. Djurisic, Yi Hou
Summary: Perovskite/organic tandem solar cells have a promising future in thin-film photovoltaics due to the large chemical composition and tunability of their bandgap. However, their efficiency is currently limited by the open-circuit voltage loss and non-ideal interconnecting layers. In this study, the passivation of nickel oxide hole-transporting layers and the development of an optimized interconnecting layer structure led to a significant increase in efficiency, reaching a maximum of 23.60% (22.95% certified) in perovskite/organic tandem solar cells.
Article
Engineering, Biomedical
Hamed Keramati, Erik Birgersson, Sangho Kim, Jackie P. Ho, Hwa Liang Leo
Summary: This paper presents a systematic procedure to develop a zero-dimensional model for a dissected aorta and validates its accuracy against a three-dimensional model. It investigates the effect of heart rate on flow rates and pressures in an aortic dissection and finds that the flow rate in the true lumen is more sensitive to changes in heart rate.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
(2022)
Article
Energy & Fuels
Min Hsian Saw, Hui Ling Soh, Amelia Ng, Karl Erik Birgersson, Stephen En Rong Tay, Mauro Pravettoni
Summary: This article presents a new method to quantify the incidence angle modifier (IAM) of photovoltaic devices, which is different from the method proposed in IEC 61853-2. The method includes spot-area irradiation, a customized angle probe holder, and a current-to-voltage converter. After validation on small single-cell modules, the method will be implemented on commercial-size silicon modules. This study aims to contribute to the IEC 61853-2 standard and the proposed method shows great potential due to its lower cost and adaptability compared to existing methods.
IEEE JOURNAL OF PHOTOVOLTAICS
(2023)
Article
Energy & Fuels
Min Hsian Saw, Mauro Pravettoni, Erik Birgersson
Summary: This study demonstrates a hybrid approach combining experiments, machine learning, and equivalent-circuit model to predict and simulate the performance of colored photovoltaic (PV) modules. By training multiple models and using the predicted values as inputs, the researchers are able to accurately predict the short-circuit current of PV modules with different colors and opacity levels, and perform circuit simulations and performance evaluations.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Materials Science, Multidisciplinary
Him Cheng Wong, Shi Ke Ong, Erik Birgersson, Mei Chee Tan, Hong Yee Low
Summary: This paper introduces a hierarchically-arranged multilayer isoporous air filter, consisting of an ultrathin nanoporous active filtration layer and a microporous support layer. By designing and fabricating microscale spacer structures, a gap was created between the nanoporous and microporous membranes, maximizing airflow and reducing pressure drop across the membrane.
APPLIED MATERIALS TODAY
(2023)
Article
Energy & Fuels
Hu Quee Tan, Haoming Liang, Maximilian Krause, Xinhai Zhao, Radha Kothandaraman, Romain Carron, Ayodhya N. Tiwari, Fan Fu, Erik Birgersson, Yi Hou, Hansong Xue
Summary: This study develops a comprehensive opto-electronic-electric model to predict the current-voltage characteristics of four-terminal (4T) tandem solar cells (TSCs) while accounting for variability in the optical and recombination parameters (ORPs) during fabrication. The model is calibrated and validated using 48 in-house fabricated transparent perovskite solar cells and a CIS bottom cell, capturing the variations in ORPs with perovskite layer thickness. The errors in models assuming constant ORPs are demonstrated, and methods to improve TSCs efficiency above 30% are discussed.
Article
Chemistry, Multidisciplinary
Xinhai Zhao, Hu Quee Tan, Erik Birgersson, Wei Chen, Yi Hou, Hansong Xue
Summary: In this study, an optoelectronic model is developed to understand the underlying physics and influential parameters of two-terminal perovskite/organic tandem solar cells. The effects of surface coverage, bulk, and sheet resistances on charge carrier recombination are investigated. Furthermore, a pathway towards achieving high efficiency is identified.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.