Wavelength-tunable waveguides based on polycrystalline organic-inorganic perovskite microwires.
Hybrid organic-inorganic perovskites have emerged as new photovoltaic materials with impressively high power conversion efficiency due to their high optical absorption coefficient and long charge carrier diffusion length. In addition to high photoluminescence quantum efficiency and chemical tunability, hybrid organic-inorganic perovskites also show intriguing potential for diverse photonic applications. In this work, we demonstrate that polycrystalline organic-inorganic perovskite microwires can function as active optical waveguides with small propagation loss. The successful production of high quality perovskite microwires with different halogen elements enables the guiding of light with different colours. Furthermore, it is interesting to find that out-coupled light intensity from the microwire can be effectively modulated by an external electric field, which behaves as an electro-optical modulator. This finding suggests the promising applications of perovskite microwires as effective building blocks in micro/nano scale photonic circuits.
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Ziyu
Z
Wang
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Jingying
J
Liu
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Zai-Quan
ZQ
Xu
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia and Institute of Functional Nano and Soft Material (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R China. qlbao@suda.edu.cn yibing.cheng@monash.edu yupeng.zhang@monash.edu.
Yunzhou
Y
Xue
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Liangcong
L
Jiang
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Jingchao
J
Song
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Fuzhi
F
Huang
Institute of Functional Nano and Soft Material (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R China. qlbao@suda.edu.cn yibing.cheng@monash.edu yupeng.zhang@monash.edu.
Yusheng
Y
Wang
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Yu Lin
YL
Zhong
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Yupeng
Y
Zhang
Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Yi-Bing
YB
Cheng
Institute of Functional Nano and Soft Material (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R China. qlbao@suda.edu.cn yibing.cheng@monash.edu yupeng.zhang@monash.edu and Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton 3800 Victoria, Australia.
Qiaoliang
Q
Bao