Journal ArticleDOI
Inorganic Lead Halide Perovskite Single Crystals: Phase-Selective Low-Temperature Growth, Carrier Transport Properties, and Self-Powered Photodetection
Makhsud I. Saidaminov,Azimul Haque,Jawaher Almutlaq,Smritakshi P. Sarmah,Xiaohe Miao,Raihana Begum,Ayan A. Zhumekenov,Ibrahim Dursun,Namchul Cho,Banavoth Murali,Omar F. Mohammed,Tom Wu,Osman M. Bakr +12 more
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This article is published in Advanced Optical Materials.The article was published on 2017-01-01. It has received 327 citations till now. The article focuses on the topics: Perovskite (structure) & Halide.read more
Citations
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Journal ArticleDOI
High stability luminophores: fluorescent CsPbX3 (X = Cl, Br and I) nanofiber prepared by one-step electrospinning method.
Maosen Yang,Jing Yu,Shouzhen Jiang,Chao Zhang,Qianqian Sun,Minghui Wang,Zhou Hang,Chonghui Li,Baoyuan Man,Fengcai Lei +9 more
TL;DR: The novel fluorescent nanofiber membranes of CsPbX3 (FNMs/CPX, X = Cl, Br, I) with a wide photoluminescence range from 405 nm to 675 nm are fabricated by a one-step electrospinning method in this paper.
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A carrier density dependent diffusion coefficient, recombination rate and diffusion length in MAPbI3 and MAPbBr3 crystals measured under one- and two-photon excitations
TL;DR: In this paper, the authors have used non-destructive optical techniques such as time-resolved differential absorption, timeresolved photoluminescence and light induced transient gratings (LITG) for the simultaneous determination of carrier density dependent recombination and diffusion rates as well as diffusion length in MAPbI3 and MAPBr3 crystals in a wide range of excitation densities upon single and two photon injections.
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Fabrication of (101)-oriented CsPbBr3 thick films with high carrier mobility using a mist deposition method
TL;DR: In this article, a scalable mist deposition method was used to obtain CsPbBr3 films with a high carrier mobility of 13 cm2 V−1 s−1, which is comparable to that for single crystals.
Journal ArticleDOI
Halide Perovskite Crystallization Processes and Methods in Nanocrystals, Single Crystals, and Thin Films
Abstract: Halide perovskite semiconductors with extraordinary optoelectronic properties have been fascinatedly studied. Halide perovskite nanocrystals, single crystals, and thin films have been prepared for various fields, such as light emission, light detection, and light harvesting. High‐performance devices rely on high crystal quality determined by the nucleation and crystal growth process. Here, the fundamental understanding of the crystallization process driven by supersaturation of the solution is discussed and the methods for halide perovskite crystals are summarized. Supersaturation determines the proportion and the average Gibbs free energy changes for surface and volume molecular units involved in the spontaneous aggregation, which could be stable in the solution and induce homogeneous nucleation only when the solution exceeds a required minimum critical concentration (Cmin). Crystal growth and heterogeneous nucleation are thermodynamically easier than homogeneous nucleation due to the existent surfaces. Nanocrystals are mainly prepared via the nucleation‐dominated process by rapidly increasing the concentration over Cmin, single crystals are mainly prepared via the growth‐dominated process by keeping the concentration between solubility and Cmin, while thin films are mainly prepared by compromising the nucleation and growth processes to ensure compactness and grain sizes. Typical strategies for preparing these three forms of halide perovskites are also reviewed.
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Monocrystalline perovskite wafers/thin films for photovoltaic and transistor applications
TL;DR: In this paper, the authors provide in-depth analyses and discussions on the potential of mono-HPs in photovoltaics and transistor applications, and present the remaining challenges, as well as promising research strategies, to provide a direction for future programs.
References
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A short history of SHELX
TL;DR: This paper could serve as a general literature citation when one or more of the open-source SH ELX programs (and the Bruker AXS version SHELXTL) are employed in the course of a crystal-structure determination.
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Crystal structure refinement with SHELXL
TL;DR: New features added to the refinement program SHELXL since 2008 are described and explained.
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OLEX2: a complete structure solution, refinement and analysis program
TL;DR: OLEX2 seamlessly links all aspects of the structure solution, refinement and publication process and presents them in a single workflow-driven package, with the ultimate goal of producing an application which will be useful to both chemists and crystallographers.
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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.
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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.