標題: Giant Optical Anisotropy of Perovskite Nanowire Array Films
作者: Lin, Chun-Ho
Kang, Chieh-Yu
Wu, Ting-Zhu
Tsai, Chun-Lin
Sher, Chin-Wei
Guan, Xinwei
Lee, Po-Tsung
Wu, Tom
Ho, Chih-Hsiang
Kuo, Hao-Chung
He, Jr-Hau
電機學院
光電工程學系
College of Electrical and Computer Engineering
Department of Photonics
關鍵字: anisotropic applications;anisotropic polarization;light emission;perovskite nanowire array films
公開日期: 1-Jan-1970
摘要: Polarizers play a key role in generating polarized light for display, imaging, and data communication, but adoption often suffers from high optical loss. Recently, due to superior optoelectronic properties, halide perovskites have been widely developed for lighting applications; however, highly polarized emission (polarization degree >0.8) has not yet been realized with perovskites. Herein, by incorporating inkjet printing and an anodic aluminum oxide (AAO) confinement strategy, highly ordered perovskite nanowire (NW) arrays are demonstrated for anisotropic optical applications. The optical device based on perovskite NW arrays reveals a high photoluminescence external quantum efficiency of 21.6% and emits highly polarized light with polarization degree up to 0.84. The highly polarized emission from perovskite NW arrays has potential to considerably reduce the optical loss of polarizers, which may attract great interest in developing polarized light sources for next-generation optoelectronic applications.
URI: http://dx.doi.org/10.1002/adfm.201909275
http://hdl.handle.net/11536/153959
ISSN: 1616-301X
DOI: 10.1002/adfm.201909275
期刊: ADVANCED FUNCTIONAL MATERIALS
起始頁: 0
結束頁: 0
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