Journal ArticleDOI
Gradient band structure: high performance perovskite solar cells using poly(bisphenol A anhydride-co-1,3-phenylenediamine)
Hiroyuki Kanda,Naoyuki Shibayama,Mousa Abuhelaiqa,Sanghyun Paek,Sanghyun Paek,Ryuji Kaneko,Nadja Klipfel,Albertus Adrian Sutanto,Cristina Roldán Carmona,Aron J. Huckaba,Hobeom Kim,Cristina Momblona,Abdullah M. Asiri,Mohammad Khaja Nazeeruddin +13 more
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In this article, a non-reactive organic polymer was used to induce band bending at perovskite surface through a passivation effect, furthermore suppressing Pb0 formation at the perovsite surface.Abstract:
Surface passivation is a critical factor for improving the photovoltaic performance of perovskite solar cells. However, more robust principle investigations are required to build effective passivation strategies enabling high-performance perovskite solar cells. Here, it is demonstrated that a non-reactive organic polymer induces band-bending at the perovskite surface through a passivation effect, furthermore suppressing Pb0 formation at the perovskite surface. Consequently, the photovoltaic performance and stability of the perovskite solar cells can be improved. The key findings show that the polymer passivation layer can control the Fermi-level at the perovskite surface, which changes the band structure at the perovskite surface and affects carrier dynamics by suppressing non-radiative pathways. Moreover, the organic polymer can prevent degradation of the perovskite surface. By using the passivating layer, the open circuit voltage improves from 1.046 to 1.100 V, the photoconversion efficiency exceeds 21%, and the stability of the perovskite solar cells is substantially improved. The organic polymer poly(bisphenol A anhydride-co-1,3-phenylenediamine) (PEIm) was used to control the perovskite band structure, and this passivation mechanism is revealed here.read more
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Journal ArticleDOI
High Open-circuit Voltage of Perovskite Solar Cells: A Review
TL;DR: Perovskite solar cells (PSCs) have made incredibly fast progress in past years, pushing the efficiency approaching 26%, which is comparable to the best silicon solar cells as mentioned in this paper , and one of the features
Journal ArticleDOI
Reduced energy loss enabled by thiophene-based interlayers for high performance and stable perovskite solar cells
Jiankai Zhang,Huangzhong Yu +1 more
TL;DR: In this article, three solution-processed thiophene-based interlayers were firstly introduced to reduce the Eloss in PVSCs by optimizing the surface electronic states of the SnO2 electron transport layer (ETL) and improving the MAPbI3 film quality.
Journal ArticleDOI
Merocyanine with Hole-Transporting Ability and Efficient Defect Passivation Effect for Perovskite Solar Cells
TL;DR: In this paper, the development of charge-transporting molecules that can simultaneously passivate multiple surface defects of perovskites is highly desirable for further performance increase of per-ovskite solar cells.
Journal ArticleDOI
SnO2/TiO2 Electron Transporting Bilayers: A Route to Light Stable Perovskite Solar Cells
TL;DR: The perovskite solar cells have driven a paradigm shift in the research domain of photovoltaics as discussed by the authors, and although the field has progressed tremendously, device stability holds back further progress and applica...
Journal ArticleDOI
Interfacial passivation of wide-bandgap perovskite solar cells and tandem solar cells
Rui Xia,Yibo Xu,Bingbing Chen,Hiroyuki Kanda,Marius Franckevičius,Rokas Gegevičius,Shubo Wang,Yifeng Chen,Daming Chen,Jianning Ding,Ningyi Yuan,Ying Zhao,Cristina Roldán-Carmona,Xiaodan Zhang,Paul J. Dyson,Mohammad Khaja Nazeeruddin +15 more
TL;DR: In this article, a stable wide-bandgap (∼1.7 eV) perovskite/silicon tandem solar cells were constructed using a combination of vacuum assisted solution processing (VASP) and interfacial passivation.
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
Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells
TL;DR: In this article, an upper theoretical limit for the efficiency of p−n junction solar energy converters, called the detailed balance limit of efficiency, has been calculated for an ideal case in which the only recombination mechanism of holeelectron pairs is radiative as required by the principle of detailed balance.
Journal ArticleDOI
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
Michael M. Lee,Joël Teuscher,Tsutomu Miyasaka,Takurou N. Murakami,Takurou N. Murakami,Henry J. Snaith +5 more
TL;DR: A low-cost, solution-processable solar cell, based on a highly crystalline perovskite absorber with intense visible to near-infrared absorptivity, that has a power conversion efficiency of 10.9% in a single-junction device under simulated full sunlight is reported.
Journal ArticleDOI
Electron-hole diffusion lengths exceeding 1 micrometer in an organometal trihalide perovskite absorber.
Samuel D. Stranks,Giles E. Eperon,Giulia Grancini,Christopher Menelaou,Marcelo J. P. Alcocer,Tomas Leijtens,Laura M. Herz,Annamaria Petrozza,Henry J. Snaith +8 more
TL;DR: In this article, transient absorption and photoluminescence-quenching measurements were performed to determine the electron-hole diffusion lengths, diffusion constants, and lifetimes in mixed halide and triiodide perovskite absorbers.
Journal ArticleDOI
Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9%
Hui-Seon Kim,Chang-Ryul Lee,Jeong-Hyeok Im,Ki Beom Lee,Thomas Moehl,Arianna Marchioro,Soo-Jin Moon,Robin Humphry-Baker,Jun-Ho Yum,Jacques-E. Moser,Michael Grätzel,Nam-Gyu Park +11 more
TL;DR: The use of a solid hole conductor dramatically improved the device stability compared to (CH3NH3)PbI3 -sensitized liquid junction cells.