期刊
ADVANCED OPTICAL MATERIALS
卷 6, 期 6, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.201701311
关键词
amplified spontaneous emission; grazing incidence scattering; hybrid perovskites; thin films
资金
- Excellence Cluster Nanosystems Initiative Munich (NIM)
- Center for NanoScience (CeNS)
- LMU Munich's Institutional Strategy LMU excellent within the framework of the German Excellence Initiative
- Bavarian Collaborative Research Project Solar Technologies Go Hybrid (SolTech)
Organic-inorganic perovskites demonstrate great potential for optical applications due to their intriguing optical and optoelectronic properties. Dedicated efforts have been carried out to understand the energy landscape and charge carrier mobilities for perovskite materials. In order to further boost these materials toward large-scale applications, an alternative bottom-up route for the understanding about correlation between the morphology of high-quality planar films and their optical properties is essential. Here, mixed-dimensional bromide-based hybrid perovskite thin films are prepared from a simple one-step solution processing route using mixtures of methylammonium bromide (MABr) and octylammonium bromide (OABr). Grazing incidence scattering data statistically reveal that the development of thin-film morphology as well as crystal orientation depends on the orientation of the OABr crystallites. This study opens up further insight into the morphology of perovskite thin films. In combination, the occurrence of amplified spontaneous emission (ASE) in perovskite films with low ASE thresholds with values approaching 17.8 mu J cm(-2) is demonstrated and appears to be closely correlated to the tailored morphology, highlighting its importance for realizing optical gain media.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据