Please use this identifier to cite or link to this item:
Title: Vapor phase synthesis of organometal halide perovskite nanowires for tunable room-temperature nanolasers
Authors: Xing, Jun
Liu, Xin Feng
Zhang, Qing
Ha, Son Tung
Yuan, Yan Wen
Shen, Chao
Sum, Tze Chien
Xiong, Qihua
Keywords: Science::Physics
Issue Date: 2015
Source: Xing, J., Liu, X. F., Zhang, Q., Ha, S. T., Yuan, Y. W., Shen, C., . . . Xiong, Q. (2015). Vapor phase synthesis of organometal halide perovskite nanowires for tunable room-temperature nanolasers. Nano Letters, 15(7), 4571-4577. doi:10.1021/acs.nanolett.5b01166
Journal: Nano Letters 
Abstract: Semiconductor nanowires have received considerable attention in the past decade driven by both unprecedented physics derived from the quantum size effect and strong isotropy and advanced applications as potential building blocks for nanoscale electronics and optoelectronic devices. Recently, organic–inorganic hybrid perovskites have been shown to exhibit high optical absorption coefficient, optimal direct band gap, and long electron/hole diffusion lengths, leading to high-performance photovoltaic devices. Herein, we present the vapor phase synthesis free-standing CH3NH3PbI3, CH3NH3PbBr3, and CH3NH3PbIxCl3–x perovskite nanowires with high crystallinity. These rectangular cross-sectional perovskite nanowires have good optical properties and long electron hole diffusion length, which ensure adequate gain and efficient optical feedback. Indeed, we have demonstrated optical-pumped room-temperature CH3NH3PbI3 nanowire lasers with near-infrared wavelength of 777 nm, low threshold of 11 μJ/cm2, and a quality factor as high as 405. Our research advocates the promise of optoelectronic devices based on organic–inorganic perovskite nanowires.
ISSN: 1530-6984
DOI: 10.1021/acs.nanolett.5b01166
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.