Editorial Material
Chemistry, Physical
Kaitlyn T. VanSant, Adele C. Tamboli, Emily L. Warren
Summary: Kaitlyn VanSant has a diverse academic background, focusing on research in solar cell design and applications of perovskite solar cells.
Article
Chemistry, Physical
Daxue Du, Chao Gao, Haiyan Wang, Wenzhong Shen
Summary: This study introduces a method to calculate the current matching loss of bifacial tandem solar cells through analyzing the current characteristics of bifacial sub-cells, with verification of reliability. Energy yield and loss are predicted for the application of bifacial tandem solar cells in different latitudes, along with possible solutions for increasing yield and reducing costs. The research establishes a base for calculating and predicting the photovoltaic performance of bifacial perovskite/c-Si tandem solar cells.
JOURNAL OF POWER SOURCES
(2022)
Article
Energy & Fuels
Patrick Schygulla, Friedemann D. Heinz, Frank Dimroth, David Lackner
Summary: This article focuses on the material properties and usage of AlGaAs and GaInAsP as middle cell absorber materials in a wafer-bonded III-V//Si triple-junction solar cell. By optimizing the growth conditions, the efficiency of the solar cells was increased, with plans to implement these results into two-terminal III-V//Si triple-junction solar cells in the future.
IEEE JOURNAL OF PHOTOVOLTAICS
(2021)
Article
Chemistry, Physical
Yiliang Wu, Peiting Zheng, Jun Peng, Menglei Xu, Yihua Chen, Sachin Surve, Teng Lu, Anh Dinh Bui, Nengxu Li, Wensheng Liang, Leiping Duan, Bairu Li, Heping Shen, The Duong, Jie Yang, Xinyu Zhang, Yun Liu, Hao Jin, Qi Chen, Thomas White, Kylie Catchpole, Huanping Zhou, Klaus Weber
Summary: The study utilizes a tunneling oxide passivating contact (TOPCon) c-Si bottom cell produced on an industrial production line as the bottom cell of a tandem device, and a solution-processed perovskite film as the top cell to form the tandem device. Strategies are implemented to avoid shunt paths and reduce reflection loss on the planar structure. The achieved efficiency of the monolithic perovskite/c-Si tandem device is 27.6%, with potential for future improvements.
ADVANCED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Monalisa Ghosh, Pavel Bulkin, Francois Silva, Erik Johnson, Ileana Florea, Daniel Funes-Hernando, Alexandre Tanguy, Charles Renard, Nicolas Vaissiere, Jean Decobert, Ivan Garcia, Ignacio Rey-Stolle, Pere Roca Cabarrocas
Summary: This study demonstrates a low-cost approach to tandem solar cells by depositing ultrathin epitaxial films of germanium on silicon wafers as virtual substrates for the growth of III-V materials. The optimized plasma-enhanced chemical vapor deposition process allows for direct growth of germanium films on silicon wafers, which can withstand high-temperature annealing. III-V layers deposited on the virtual substrates exhibit comparable properties to those deposited on silicon wafers.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Materials Science, Multidisciplinary
Jae Hyun Park, Jin Young Kim
Summary: As the efficiency of perovskite/Si tandem solar cells exceeds the practical limit of single-junction cells, stability becomes crucial for real-world application. Recent studies have shown that potential-induced degradation and partial recovery can occur in PVSK/Si TSCs based on external potential, highlighting the necessity to address previously understudied PID issues for successful commercialization.
Article
Energy & Fuels
Daxue Du, Chao Gao, Dezhao Zhang, Feiyang Qiao, Jingjing Liang, Haiyan Wang, Wenzhong Shen
Summary: Research has shown the photovoltaic performance of bifacial perovskite/c-Si tandem solar cells under different Si thicknesses, pyramid heights, and albedos. It was found that the thickness of the c-Si sub-cells can be reduced to 25μm, and the albedos need to be increased by 18.6% to cover the absorption loss in the near-infrared.
Article
Materials Science, Multidisciplinary
Jae Hyun Park, Su Geun Ji, Young Seon Yoon, Min-Ah Park, Sun Hwa Lee, Ki Hong Kim, Jin Young Kim
Summary: As an alternative to crystalline Si (c-Si) cells, perovskite (PVSK)/Si tandem solar cells (TSCs) are gaining attention for their higher efficiency. The tandem device combines the maturity of c-Si cells and the high performance of PVSK solar cells, leading to increasing expectations for commercialization. This perspective article summarizes the recent progress of PVSK/Si TSCs and reviews opto-electronic characterization methods, providing insights for further development.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Review
Chemistry, Physical
Michele De Bastiani, Anand S. Subbiah, Maxime Babics, Esma Ugur, Lujia Xu, Jiang Liu, Thomas G. Allen, Erkan Aydin, Stefaan De Wolf
Summary: Perovskite/silicon tandem solar cells are high-efficiency and low-cost photovoltaic devices that enhance stability and energy yield by collecting light from both the sunward and rear side.
Editorial Material
Chemistry, Physical
Jin Wang, Hui Liu, Ying Zhao, Xiaodan Zhang
Summary: Perovskite-based tandem cells with high efficiency and clean energy conversion have been developed. By passivating with ammonium cations, the issue of short carrier diffusion length in thick PbSn narrow-bandgap subcell has been addressed, leading to a certified efficiency of 26.4%, a new record for all-perovskite tandem solar cells.
Article
Energy & Fuels
Karim Medjoubi, Jeremie Lefevre, Laura Vauche, Elias Veinberg-Vidal, Christophe Jany, Cedric Rostaing, Vincent Amalbert, Fabien Chabuel, Bruno Boizot, Romain Cariou
Summary: This study evaluates the potential of III-V//Si solar cell technology for space applications, presenting experimental results on degradation of wafer bonded 2-terminal III-V//Si solar cells under 1 MeV electrons irradiation. The impact of electron irradiation on effective diffusion length in the silicon bottom cell was calculated using the Internal Quantum Efficiency model. Paths towards higher EOL III-V//Si solar cells are discussed for improvement.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Multidisciplinary Sciences
Bo Chen, Zhenhua Yu, Arthur Onno, Zhengshan Yu, Shangshang Chen, Jiantao Wang, Zachary C. Holman, Jinsong Huang
Summary: This paper reports on a bifacial all-perovskite tandem structure that achieves an equivalent efficiency of 29.3% under a back-to-front irradiance ratio of 30. By embedding a light-scattering micrometer-sized particle layer and using a nonacidic hole transport layer, the efficiency of semitransparent Pb-Sn cells is increased from 15.6% to 19.4%, enabling the fabrication of efficient bifacial all-perovskite tandem devices.
Article
Materials Science, Multidisciplinary
Ik Jae Park, Dong Hoe Kim, Su Geun Ji, You Jin Ahn, So Jeong Park, Daehan Kim, Byungha Shin, Jin Young Kim
Summary: By controlling the thickness of the window layers composed of C-60 and indium tin oxide (ITO), optical losses can be reduced to increase photocurrent density, but the balance between optical, electrical, and structural properties must be maintained. The optimal design maximizes photoresponse without compromising device performance.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Physics, Applied
Masafumi Yamaguchi, Yu-Cian Wang, Nobuaki Kojima, Akio Yamamoto, Yoshio Ohshita
Summary: The study discusses the effectiveness of low-temperature growth of III-V layers on Si substrates for achieving low-density dislocations, demonstrating a low dislocation density in GaAs-on-Si. This low dislocation density shows high potential efficiency for III-V/Si tandem solar cells.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Multidisciplinary Sciences
Renxing Lin, Yurui Wang, Qianwen Lu, Beibei Tang, Jiayi Li, Han Gao, Yuan Gao, Hongjiang Li, Changzeng Ding, Jin Wen, Pu Wu, Chenshuaiyu Liu, Siyang Zhao, Ke Xiao, Zhou Liu, Changqi Ma, Yu Deng, Ludong Li, Fengjia Fan, Hairen Tan
Summary: All-perovskite tandem solar cells with an immiscible 3D/3D bilayer heterojunction achieve a record-high PCE of 28% and retain over 90% of their initial performance after 600 hours of continuous operation.
Article
Energy & Fuels
Masafumi Yamaguchi, Taizo Masuda, Kenji Araki, Daisuke Sato, Kan-Hua Lee, Nobuaki Kojima, Tatsuya Takamoto, Kenichi Okumura, Akinori Satou, Kazumi Yamada, Takashi Nakado, Yusuke Zushi, Yoshio Ohshita, Mitsuhiro Yamazaki
Summary: The development of high-efficiency solar cell modules and new application fields is crucial for the advancement of photovoltaic technology and the establishment of new clean energy infrastructure. In particular, the development of PV-powered vehicles is seen as essential for the creation of broader PV markets with over 10GW in 2030 and 50GW in 2040. By utilizing high-efficiency PV, it is possible to achieve significant driving distances per day without external charging, leading to a society where most family cars run on solar power.
PROGRESS IN PHOTOVOLTAICS
(2021)
Article
Energy & Fuels
Masafumi Yamaguchi, Kan-Hua Lee, Kenji Araki, Nobuaki Kojima, Yasuki Okuno, Mitsuru Imaizumi
Summary: Silicon space solar cells are gaining attention again for their cost-effectiveness and performance, with the potential to achieve over 26% efficiency through improvements in external radiative efficiency and resistance. Nonradiative recombination and resistance losses are also important factors to consider in silicon space solar cells. Additionally, radiation degradation is a key issue to be analyzed in the context of advanced silicon solar cells for space applications.
PROGRESS IN PHOTOVOLTAICS
(2021)
Article
Energy & Fuels
Kan-Hua Lee, Nobuhiko Hayashi, Michihiko Takase
Summary: It has been shown that the integration of plastic lens with III-V compound semiconductor cells in CPV modules can reduce volume and weight significantly, but also demands higher precision and consistency to avoid misalignment affecting their performance.
PROGRESS IN PHOTOVOLTAICS
(2021)
Article
Materials Science, Multidisciplinary
Masafumi Yamaguchi, Takefumi Kamioka, Nobuaki Kojima, Yoshio Ohshita
Summary: The key to improving crystalline Si solar cells is reducing carbon concentration to less than 1 x 10(14) cm(-3), while the comparison between defect introduction rates induced by light illumination and electron irradiations sheds light on performance enhancement. Surface recombination velocity degradation caused by electron irradiations and surface degradation due to light illumination are also compared in this study.
MRS COMMUNICATIONS
(2021)
Article
Physics, Applied
Masafumi Yamaguchi, Frank Dimroth, John F. Geisz, Nicholas J. Ekins-Daukes
Summary: High-performance solar cells, particularly multi-junction solar cells using different bandgap semiconductor materials, are considered a promising pathway towards achieving high power efficiency at low cost. III-V semiconductor materials have been shown to provide an effective system for fabricating multi-junction solar cells that can span the solar spectrum, with record efficiencies demonstrating their potential. Other materials like perovskites are also being explored for their lower manufacturing costs. The development and potential market applications of multi-junction solar cells, including III-V/Si, II-VI/Si, cadmium chalcogenide/Si, and perovskite/Si tandem solar cells, are discussed based on scientific and technological arguments.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Applied
Masafumi Yamaguchi, Taizo Masuda, Kenji Araki, Yasuyuki Ota, Kensuke Nishioka, Tatsuya Takamoto, Christian Thiel, Anastasios Tsakalidis, Arnulf Jaeger-Waldau, Kenichi Okumura, Akinori Satou, Takashi Nakado, Kazumi Yamada, Yusuke Zushi, Tsutomu Tanimoto, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima, Yoshio Ohshita
Summary: The study highlights the potential for passenger cars powered solely by solar energy by using high-efficiency PV modules, but practical driving ranges may be shorter than estimated due to losses. III-V compound solar cell modules are found to be more suitable, with higher potential conversion efficiencies, making them a viable option for developing highly efficient solar cell modules for vehicle integrated applications.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Energy & Fuels
Masafumi Yamaguchi, Ryo Ozaki, Kyotaro Nakamura, Kan-Hua Lee, Nobuaki Kojima, Yoshio Ohshita, Taizo Masuda, Kenichi Okumura, Akinori Satou, Takashi Nakado, Kazumi Yamada, Kenji Araki, Yasuyuki Ota, Kensuke Nishioka, Tatsuya Takamoto, Yusuke Zushi, Tsutomu Tanimoto, Christian Thiel, Anastasios Tsakalidis, Arunulf Jager-Waldau
Summary: Photovoltaic (PV)-powered vehicles are expected to play a critical role in a future carbon neutral society due to their ability to reduce CO2 emissions from the transport sector. Analytical results show that improvements in shunt resistance and saturation current density of solar cell modules are necessary to develop highly efficient solar cell modules for vehicle-integrated applications. The calculations suggest that III-V-based 3-junction solar cell modules with an efficiency of more than 30% have the potential to achieve a PV-powered driving range of 30 km/day average and more than 50 km/day on a clear day.
Review
Physics, Applied
Masafumi Yamaguchi, Taizo Masuda, Kenji Araki, Yasuyuki Ota, Kensuke Nishioka
Summary: This paper investigates the impact of high-efficiency solar cell modules on the driving distance, CO2 emission, and charging cost of electric vehicles. It also briefly discusses the effects of temperature, shading, curved surfaces, and color variations on the output power of vehicle integrated PVs (VIPVs).
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Energy & Fuels
Masafumi Yamaguchi, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima, Yoshio Ohshita, Taizo Masuda, Kenichi Okumura, Akinori Satou, Takashi Nakado, Kazumi Yamada, Tsutomu Tanimoto, Yusuke Zushi, Tatsuya Takamoto, Kenji Araki, Yasuyuki Ota, Kensuke Nishioka
Summary: This article analyzes the potential of various solar cell modules for vehicle-integrated photovoltaic (VIPV) applications. It shows that solar cell modules with an efficiency higher than 35% can enable a PV driving range of over 30 km without external charging. Cost reduction of VIPV modules is also important for spreading PV-powered vehicles.
Article
Energy & Fuels
Kenji Araki, Yasuyuki Ota, Anju Maeda, Minoru Kumano, Kensuke Nishioka
Summary: Electric vehicles have the advantage of resilience to natural disasters, but users hesitate to donate electricity when they lose the chance to recharge at the utility. Solar electric vehicles, through vehicle-integrated photovoltaics, can save energy and enable voluntary donation of excess energy, thus maintaining facility resilience. This study investigates the potential of vehicle-integrated photovoltaics to maintain utility resilience considering physical factors like irradiance and social factors.
Article
Energy & Fuels
Masafumi Yamaguchi, Taizo Masuda, Takashi Nakado, Kazumi Yamada, Kenichi Okumura, Akinori Satou, Yasuyuki Ota, Kenji Araki, Kensuke Nishioka, Nobuaki Kojima, Yoshio Ohshita
Summary: Development of PV-powered vehicles is crucial for a carbon neutrality society as vehicle integrated PVs have the potential to significantly reduce CO2 emissions in the transport sector. The use of high-efficiency solar cell modules is essential due to limited installation area on vehicle exteriors. This article presents driving data of a Toyota Prius installed with a high-efficiency III-V compound triple-junction solar cell module, achieving an efficiency of over 30%. The results demonstrate an average daily driving distance of 17 km/day with air conditioning, and a 62% CO2 emission reduction through actual driving in Nagoya, Japan. Additionally, analytical results show the impact of high-efficiency VIPV modules (>35%) on increasing the average daily driving distance by over 30 km/day and reducing CO2 emissions from PV-powered vehicles by over 70%.
IEEE JOURNAL OF PHOTOVOLTAICS
(2023)
Article
Energy & Fuels
Masafumi Yamaguchi, Yoshio Ohshita, Hajime Shibata, Hitoshi Tampo, Takehiko Nagai
Summary: This article provides an overview of efficiency improvements in various single-junction solar cells and discusses the possible losses of high-efficiency single-junction solar cells. A perspective on single-junction solar cells based on practical feasible efficiency is presented, along with a discussion on the problems to be solved for solar cell modules.
Article
Physics, Applied
Masafumi Yamaguchi, Frank Dimroth, Nicholas J. Ekins-Daukes, Nobuaki Kojima, Yoshio Ohshita
Summary: This paper reviews the progress of III-V compound single-junction and multi-junction solar cells, and presents analysis results on major losses in III-V compound materials and multi-junction solar cells. The study shows the high potential efficiency of GaAs single-junction and III-V multi-junction solar cells, but further improvements are needed for practical efficiency.