Crystallographically Aligned Perovskite Structures for High-Performance Polarization-Sensitive Photodetectors

Jiangang Feng, Xiaoxu Yan, Yun Liu, Hanfei Gao, Yuchen Wu, Bin Su, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

93 Citations (Scopus)

Abstract

Researchers demonstrate a polarization-sensitive photodetector by the fabrication of 1D perovskite single-crystal arrays, with strict alignment, precise position, homogeneous size, and high crystallographic order, through a facile and high-efficiency solution-processing method. The nucleation site and growth direction of perovskite crystals are manipulated by a micropillar-structured template with asymmetric wettability. A ‘capillary trailing’ is generated at the lyophobic–lyophilic boundary, with regulated shape, position, fluid flow, and dewetting dynamics, leading to a highly controllable crystallization process and yielding 1D-structure growth along the [100] orientation.

Original languageEnglish
Article number1605993
Number of pages8
JournalAdvanced Materials
Volume29
Issue number16
DOIs
Publication statusPublished - 25 Apr 2017

Keywords

  • optoelectronics
  • perovskites
  • photodetectors
  • polarization sensitivity
  • single crystals

Cite this