Journal ArticleDOI
Planar Heterojunction Perovskite Solar Cells via Vapor-Assisted Solution Process
Qi Chen,Huanping Zhou,Ziruo Hong,Song Luo,Hsin Sheng Duan,Hsin-Hua Wang,Yongsheng Liu,Gang Li,Yang Yang +8 more
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TLDR
A low-temperature vapor-assisted solution process is demonstrated to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain size up to microscale, paving the way for high reproducibility of films and devices.Abstract:
Hybrid organic/inorganic perovskites (e.g., CH3NH3PbI3) as light absorbers are promising players in the field of third-generation photovoltaics. Here we demonstrate a low-temperature vapor-assisted solution process to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain size up to microscale. Solar cells based on the as-prepared films achieve high power conversion efficiency of 12.1%, so far the highest efficiency based on CH3NH3PbI3 with the planar heterojunction configuration. This method provides a simple approach to perovskite film preparation and paves the way for high reproducibility of films and devices. The underlying kinetic and thermodynamic parameters regarding the perovskite film growth are discussed as well.read more
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Enhanced Crystallinity in Organic–Inorganic Lead Halide Perovskites on Mesoporous TiO2 via Disorder–Order Phase Transition
Byung-wook Park,Bertrand Philippe,Torbjörn Gustafsson,Kári Sveinbjörnsson,Anders Hagfeldt,Anders Hagfeldt,Erik M. J. Johansson,Gerrit Boschloo +7 more
TL;DR: In this article, organic-inorganic halide perovskite (OIHP) compounds are used for device application in, for example, solar cells, electro-optics, and electronic circuits.
Journal ArticleDOI
Improved charge transport of Nb-doped TiO2 nanorods in methylammonium lead iodide bromide perovskite solar cells
Mengjin Yang,Rui Guo,Kamal Kadel,Yunyan Liu,Kevin E. O'Shea,Richard A. Bone,Xuewen Wang,Jin He,Wei Li +8 more
TL;DR: In this article, Nb-doped rutile nanorod-based methylammonium lead iodide bromide (MAPbI3−xBrx) perovskite solar cells have been developed by integrating an excellent photon-active perovsite sensitizer with the superior electron transporting rutiles.
Journal ArticleDOI
Growth control of compact CH3NH3PbI3 thin films via enhanced solid-state precursor reaction for efficient planar perovskite solar cells
Yuanyuan Zhou,Mengjin Yang,Alexander L. Vasiliev,Hector F. Garces,Yixin Zhao,Dong Wang,Shuping Pang,Kai Zhu,Nitin P. Padture +8 more
TL;DR: In this paper, an enhancement of the solid-state reaction between inorganic-organic precursors is proposed for the growth of compact, phase-pure MAPbI(3) perovskite thin films with no voids or pinholes.
Journal ArticleDOI
Inorganic perovskite solar cells: an emerging member of the photovoltaic community
TL;DR: In this paper, an up-to-date review on the development of inorganic PSCs tailored by various inorganic perovskite materials with gradually changed optical properties and stability, as well as the film-making methods and interfacial engineering technologies.
Journal ArticleDOI
Dual-Phase CsPbBr3–CsPb2Br5 Perovskite Thin Films via Vapor Deposition for High-Performance Rigid and Flexible Photodetectors
Guoqing Tong,Guoqing Tong,Huan Li,Danting Li,Zhifeng Zhu,Enze Xu,Guopeng Li,Linwei Yu,Jun Xu,Yang Jiang +9 more
TL;DR: Tetragonal CsPb2 Br5 provides satisfactory passivation to reduce the recombination of the charge carriers, and with its lower free energy, it enhances the stability of the inorganic perovskite devices.
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
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
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Julian Burschka,Norman Pellet,Norman Pellet,Soo-Jin Moon,Robin Humphry-Baker,Peng Gao,Mohammad Khaja Nazeeruddin,Michael Grätzel +7 more
TL;DR: A sequential deposition method for the formation of the perovskite pigment within the porous metal oxide film that greatly increases the reproducibility of their performance and allows the fabrication of solid-state mesoscopic solar cells with unprecedented power conversion efficiencies and high stability.
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
Efficient planar heterojunction perovskite solar cells by vapour deposition
TL;DR: It is shown that perovskite absorbers can function at the highest efficiencies in simplified device architectures, without the need for complex nanostructures.