Wang, HongleiLiu, Shih-ChiaBalachandran, BalasubramaniamMoon, JiyoungHaroldson, RossLi, ZhitongIshteev, ArturGu, QingZhou, WeidongZakhidov, Anvar A.Hu, Wenchuang (Walter)2018-11-052018-11-052017-11-202018-11-051094-4087http://hdl.handle.net/10735.1/6284Full text access from Treasures at UT Dallas is restricted to current UTD affiliates.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.enOSA'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 AmericaLight emitting diodesSolar cellsLasersMetamaterialsOptical resonanceSiliconOpticsPerovskiteHalide mineralsNanoimprint lithographyOptoelectronicsPhotoluminescencearticleWang, Honglei, Shih-Chia Liu, Balasubramaniam Balachandran, Jiyoung Moon, et al. 2017. "Nanoimprinted perovskite metasurface for enhanced photoluminescence." Optics Express 25(24), 10.1364/OE.25.0A11622524