Journal ArticleDOI
High-efficiency heterojunction crystalline Si solar cells
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TLDR
In this paper, the authors proposed a two-terminal tandem structure with a heterojunction c-Si solar cell and a perovskite solar cell, which achieved record-breaking conversion efficiencies of 26.7% for cells and 24.5% for modules.Abstract:
High-efficiency back-contact heterojunction crystalline Si (c-Si) solar cells with record-breaking conversion efficiencies of 26.7% for cells and 24.5% for modules are reported. The importance of thin-film Si solar cell technology for heterojunction c-Si solar cells with amorphous Si passivation layers in improving conversion efficiency and reducing production cost is demonstrated. Our attempts to reduce the production cost of a heterojunction c-Si solar cell by applying a SiO x layer prepared by a plasma-enhanced CVD method are presented. The characteristics of heterojunction c-Si solar cells are clarified by comparing them with those of practical homojunction solar cells, and crucial targets for industrialization of back-contact heterojunction c-Si solar cells are discussed. Owing to the recent improvement of c-Si solar cells and perovskite solar cells, conversion efficiencies over 30% have become a realistic target by using a two-terminal tandem structure with a heterojunction c-Si solar cell and a perovskite solar cell.read more
Citations
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Nonradiative Recombination in Perovskite Solar Cells: The Role of Interfaces
TL;DR: Quantification of the quasi-Fermi level splitting in perovskite films with and without attached transport layers allows to identify the origin of nonradiative recombination, and to explain the VOC of operational devices, proving that in state-of-the-art solar cells,Nonradiatives recombination at the interfaces between the perovkite and the transport layers is more important than processes in the bulk or at grain boundaries.
Journal ArticleDOI
Design rules for high-efficiency both-sides-contacted silicon solar cells with balanced charge carrier transport and recombination losses
Armin Richter,Ralph Müller,Jan Benick,Frank Feldmann,Bernd Steinhauser,Christian Reichel,Andreas Fell,Martin Bivour,Martin Hermle,Stefan W. Glunz,Stefan W. Glunz +10 more
TL;DR: Richter et al. as discussed by the authors showed that omitting the layers at the front side that provide lateral charge carrier transport is the key to excellent optoelectrical properties for both-sides-contacted cells.
Journal ArticleDOI
Photovoltaic technology and visions for the future
TL;DR: In this article, the state of the art of photovoltaics is discussed, as well as the prospects for improvements and for significantly impacting carbon dioxide emissions, and the market conditions and state of development of the technology are outlined.
Journal ArticleDOI
Revisiting thin silicon for photovoltaics: a technoeconomic perspective
Zhe Liu,Sarah E. Sofia,Hannu S. Laine,Michael Woodhouse,Sarah Wieghold,Ian Marius Peters,Tonio Buonassisi +6 more
TL;DR: It is found that the state-of-the-art industry concept could not achieve the climate targets even with very aggressive financial scenarios, therefore the capex reduction benefit of thin wafers is needed to facilitate more rapid PV growth.
Journal ArticleDOI
Voltage-Dependent Photoluminescence and How It Correlates with the Fill Factor and Open-Circuit Voltage in Perovskite Solar Cells
Martin Stolterfoht,Vincent M. Le Corre,Markus Feuerstein,Pietro Caprioglio,Pietro Caprioglio,L. Jan Anton Koster,Dieter Neher +6 more
TL;DR: In this paper, the photoluminescence (PL) yield of a solar cell has been optimized to maximize the power conversion efficiency of the solar cell, while PL measurements are not routinely applied to p...
References
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Journal ArticleDOI
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
TL;DR: Two organolead halide perovskite nanocrystals were found to efficiently sensitize TiO(2) for visible-light conversion in photoelectrochemical cells, which exhibit strong band-gap absorptions as semiconductors.
Journal ArticleDOI
Iodide management in formamidinium-lead-halide–based perovskite layers for efficient solar cells
Woon Seok Yang,Byung-wook Park,Eui Hyuk Jung,Nam Joong Jeon,Young Chan Kim,Dong Uk Lee,Seong Sik Shin,Jangwon Seo,Eun Kyu Kim,Jun Hong Noh,Sang Il Seok +10 more
TL;DR: The introduction of additional iodide ions into the organic cation solution, which is used to form the perovskite layers through an intramolecular exchanging process, decreases the concentration of deep-level defects, enabling the fabrication of PSCs with a certified power conversion efficiency.
Journal ArticleDOI
Silicon heterojunction solar cell with interdigitated back contacts for a photoconversion efficiency over 26
Kunta Yoshikawa,Hayato Kawasaki,Yoshida Wataru,Toru Irie,Katsunori Konishi,Kunihiro Nakano,Toshihiko Uto,Daisuke Adachi,Masanori Kanematsu,Hisashi Uzu,Kenji Yamamoto +10 more
TL;DR: In this paper, a silicon heterojunction with interdigitated back contacts was presented, achieving an efficiency of 26.3% and a detailed loss analysis to guide further developments.
Journal ArticleDOI
23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability
Kevin A. Bush,Axel F. Palmstrom,Zhengshan J. Yu,Mathieu Boccard,Rongrong Cheacharoen,Jonathan P. Mailoa,David P. McMeekin,Robert L. Z. Hoye,Colin D. Bailie,Tomas Leijtens,Ian Marius Peters,Maxmillian C. Minichetti,Nicholas Rolston,Rohit Prasanna,Sarah E. Sofia,Duncan Harwood,Wen Ma,Farhad Moghadam,Henry J. Snaith,Tonio Buonassisi,Zachary C. Holman,Stacey F. Bent,Michael D. McGehee +22 more
TL;DR: In this paper, the authors improved the efficiency of monolithic, two-terminal, 1-cm2 perovskite/silicon tandems to 23.6% by combining an infrared-tuned silicon heterojunction bottom cell with the recently developed caesium formamidinium lead halide pervskite.
Journal ArticleDOI
Achievement of More Than 25% Conversion Efficiency With Crystalline Silicon Heterojunction Solar Cell
Keiichiro Masuko,Masato Shigematsu,Taiki Hashiguchi,Daisuke Fujishima,Motohide Kai,Naoki Yoshimura,Tsutomu Yamaguchi,Yoshinari Ichihashi,Takahiro Mishima,Naoteru Matsubara,Tsutomu Yamanishi,Tsuyoshi Takahama,Mikio Taguchi,Eiji Maruyama,Shingo Okamoto +14 more
TL;DR: In this article, the structure of an interdigitated back contact was adopted with crystalline silicon heterojunction solar cells to reduce optical loss from a front grid electrode, a transparent conducting oxide (TCO) layer, and a-Si:H layers as an approach for exceeding the conversion efficiency of 25%.