Journal ArticleDOI
Solvent engineering for high-quality perovskite solar cell with an efficiency approaching 20%
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TLDR
In this paper, a ternary-mixed-solvent method for the growth of high-quality [Cs0.05(MA0.17FA0.95Pb(I0.83)0.3] cation-anion-mixed perovskite films by introducing N-methyl-2-pyrrolidone (NMP) into the precursor mixed solution was developed.About:
This article is published in Journal of Power Sources.The article was published on 2017-10-15. It has received 58 citations till now. The article focuses on the topics: Perovskite solar cell & Perovskite (structure).read more
Citations
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Journal ArticleDOI
Improved Open-Circuit Voltage and Repeatability of Perovskite Cells Based on Double-Layer Lead Halide Precursors Fabricated by a Vapor-Assisted Method.
Ting Wu,Qing Zhu,Gaozhu Wu,Defu Yin,Mingming Fu,Mingming Fu,Weiping Wang,Jialun He,Lijing Kong,Xuanli Zheng,Yiyan Cao,Yaping Wu,Chunmiao Zhang,Xu Li,Zhiming Wu,Junyong Kang +15 more
TL;DR: It is found that surface morphologies of perovskite films could be tailored through tuning the spin-coating speed and chemical compositions (the second precursor layer) and small variation reveals high repeatability of this method.
Journal ArticleDOI
Controllable deposition of organic metal halide perovskite films with wafer-scale uniformity by single source flash evaporation.
WooCheol Lee,Jonghoon Lee,Hyeon Dong Lee,Junwoo Kim,Heebeom Ahn,Youngrok Kim,Daekyoung Yoo,Jeongjae Lee,Tae-Woo Lee,Keehoon Kang,Takhee Lee +10 more
TL;DR: In this work, the reliability and controllability of the single-source flash evaporation technique for methylammonium lead iodide (MAPbI3) perovskite is investigated and the excellent large-area uniformity of the physical properties of the deposited thin films can be transferred to the uniformity in the device performance of MAPbI 3 photodetectors prepared by flashevaporation.
Journal ArticleDOI
Self-Driven, Quadridirectional Carrier Transport, Bifacial MAPbI3–Perovskites Photodiodes Fabricated via Laterally Aligned Interconnected Sandwiched Type Architecture
TL;DR: In this article, two architectures of perovskite photodiodes, where distinct heterojunction L 1 and L 2 are proposed, are compared for efficient harvesting and storing of photon energy.
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Solvent engineering based on triethylenetetramine (TETA) for perovskite solar cells processed in ambient-air
N. Timasi,S. Tafazoli,Esmaiel Nouri,Mohammad Reza Mohammadi,Mohammad Reza Mohammadi,Yuning Li +5 more
TL;DR: The results reveal that residual PbI2 is completely removed and converted to a crystalline perovskite film, which exhibits a 55% increase in photoconversion efficiency compared to the control device with no solvent engineering.
Journal ArticleDOI
Solvent Effects on the Structural and Optical Properties of MAPbI3 Perovskite Thin Film for Photovoltaic Active Layer
TL;DR: In this article , the effect of spin-coated methyl ammonium lead iodide (MAPbI3) perovskite thin films prepared using a single-step method was systematically investigated.
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
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.
Journal Article
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 paper, 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.