Sadhanala, A. et al. (2015) Blue-green color tunable solution processable organolead chloride–bromide mixed halide perovskites for optoelectronic applications. Nano Letters, 15(9), pp. 6095-6101. (doi: 10.1021/acs.nanolett.5b02369) (PMID:26236949) (PMCID:PMC4762541)
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Abstract
Solution-processed organo-lead halide perovskites are produced with sharp, color-pure electroluminescence that can be tuned from blue to green region of visible spectrum (425–570 nm). This was accomplished by controlling the halide composition of CH3NH3Pb(BrxCl1–x)3 [0 ≤ x ≤ 1] perovskites. The bandgap and lattice parameters change monotonically with composition. The films possess remarkably sharp band edges and a clean bandgap, with a single optically active phase. These chloride–bromide perovskites can potentially be used in optoelectronic devices like solar cells and light emitting diodes (LEDs). Here we demonstrate high color-purity, tunable LEDs with narrow emission full width at half maxima (FWHM) and low turn on voltages using thin-films of these perovskite materials, including a blue CH3NH3PbCl3 perovskite LED with a narrow emission FWHM of 5 nm.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Docampo, Dr Pablo |
Authors: | Sadhanala, A., Ahmad, S., Zhao, B., Giesbrecht, N., Pearce, P. M., Deschler, F., Hoye, R. L. Z., Gödel, K. C., Bein, T., Docampo, P., Dutton, S. E., De Volder, M. F. L., and Friend, R. H. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Nano Letters |
Publisher: | American Chemical Society |
ISSN: | 1530-6984 |
ISSN (Online): | 1530-6992 |
Published Online: | 03 August 2015 |
Copyright Holders: | Copyright © 2015 American Chemical Society |
First Published: | First published in Nano Letters 15(9): 6095-9101 |
Publisher Policy: | Reproduced under a Creative Commons License |
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