Whitworth, G. L., Harwell, J. R., Miller, D. N., Hedley, G. J. , Zhang, W., Snaith, H. J., Turnbull, G. A. and Samuel, I. D.W. (2016) Nanoimprinted distributed feedback lasers of solution processed hybrid perovskites. Optics Express, 24(21), 23677. (doi: 10.1364/OE.24.023677) (PMID:27828204)
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163973.pdf - Published Version Available under License Creative Commons Attribution. 2MB |
Abstract
Hybrid perovskite materials have considerable potential for light emitting devices such as LEDs and lasers. We combine solution processed CH3NH3PbI3 perovskite with UV nanoimprinted polymer gratings to fabricate distributed feedback (DFB) lasers. The lead acetate deposition route is shown to be an effective method for fabricating low-loss waveguides (loss coefficient ~6 cm-1) and highly compatible with the polymer grating substrates. The nanoimprinted perovskite exhibited single-mode band-edge lasing, confirmed by angle-dependent transmission measurements. Depending on the excitation pulse duration the lasing threshold shows a value of 110 μJ/cm2 under nanosecond pumping and 4 μJ/cm2 under femtosecond pumping. We demonstrate further that this laser has excellent stability with a lifetime of 108 pulses.
| Item Type: | Articles |
|---|---|
| Additional Information: | supported by the Engineering and Physical Sciences Research Council (EPSRC) of the UK Grants; EP/K503162/1, EP/M506631/1, EP/M025330/1 and EP/L017008/1. IDWS acknowledges funding from a Royal Society Wolfson research merit award. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Hedley, Dr Gordon |
| Authors: | Whitworth, G. L., Harwell, J. R., Miller, D. N., Hedley, G. J., Zhang, W., Snaith, H. J., Turnbull, G. A., and Samuel, I. D.W. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Optics Express |
| Publisher: | Optical Society of America |
| ISSN: | 1094-4087 |
| ISSN (Online): | 1094-4087 |
| Copyright Holders: | Copyright © 2016 Journal |
| First Published: | First published in Optics Express 24(21):23677 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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