Nanoimprinted Perovskite Metasurface for Enhanced Photoluminescence

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Nanoimprinted Perovskite Metasurface for Enhanced Photoluminescence

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Title: Nanoimprinted Perovskite Metasurface for Enhanced Photoluminescence
Author(s):
Wang, Honglei;
Liu, Shih-Chia;
Balachandran, Balasubramaniam;
Moon, Jiyoung;
Haroldson, Ross;
Li, Zhitong;
Ishteev, Artur;
Gu, Qing;
Zhou, Weidong;
Zakhidov, Anvar A.;
Hu, Wenchuang (Walter)
Date Created: 2017-11-20
Item Type: article
Keywords: Show Keywords
Description: Full text access from Treasures at UT Dallas is restricted to current UTD affiliates.
Abstract: Recently, solution-processed hybrid halide perovskite has emerged as promising materials for advanced optoelectronic devices such as photovoltaics, photodetectors, light emitting diodes and lasers. In the mean time, all-dielectric metasurfaces with high-index materials have attracted attention due to their low-loss and high-efficient optical resonances. Because of its tunable by composition band gap in the visible frequencies, organolead halide perovskite could serve as a powerful platform for realizing high-index, low-loss metasurfaces. However, direct patterning of perovskite by lithography-based technique is not feasible due to material instability under moisture. Here we report novel organolead halide perovskite metasurfaces created by the cost-effective thermal nanoimprint technology. The nanoimprinted perovskite metasurface showed improved surface morphology and enhanced optical absorption properties. Significantly enhanced optical emission with an eight-fold enhancement in photoluminescence (PL) intensity was observed under room temperature. Temperature-dependent PL of perovskite nanograting metasurface was also investigated. Based on our results, we believe that thermal nanoimprint is a simple and cost-effective technique to fabricate perovskite-based metasurfaces, which could have broad impact on optoelectronic and photonic applications.
Publisher: Optical Soc Amer
ISSN: 1094-4087
Source: Optics Express
Link to Related Resource: http://dx.doi.org/10.1364/OE.25.0A1162
Persistent Link: http://hdl.handle.net/10735.1/6284
Bibliographic Citation: Wang, Honglei, Shih-Chia Liu, Balasubramaniam Balachandran, Jiyoung Moon, et al. 2017. "Nanoimprinted perovskite metasurface for enhanced photoluminescence." Optics Express 25(24), 10.1364/OE.25.0A1162
Terms of Use: OSA's Open Access. "Authors and readers may use, reuse, and build upon the article, or use it for text or data mining, as long as the purpose is non-commercial and appropriate attribution is maintained."
©2017 Optical Society of America
Sponsors: National Science Foundation (NSF) (CBET-1606141, ECCS-0955027); Welch Foundation (AT-1617); Chinese National Science Foundation (CNSF) (61628402); Ministry of Education and Science of the Russian Federation in the framework of Megagrant (14. Y26.31.0010) for optical measurements and via Increased Competitiveness Program of NUST (K2-2015-014) for sample preparation.

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