Abstract
Organolead trihalide perovskite materials have been attracting increasing attention due to their promising role in solid solar cells. Several advantages make them potential candidates for optoelectronics: (1) solution- or/and vapor-processed preparation at low temperature; (2) tunable optical bandgap, wide absorption spectrum but narrow photoluminescence peaks; (3) long carrier life time, large diffusion length and high charge mobility; (4) various nanostructures via tuning capping agents and solvents. In this review, we summarize recent attempts toward efficient LEDs based on organolead trihalide perovskite materials. The strategies of materials science, device design and interface engineering are highlighted. Recent development and future perspectives are summarized for practical perovskite light technologies.
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