通过溶剂蒸气退火控制晶粒尺寸和结晶度实现高发光钙钛矿薄膜。
Realizing a highly luminescent perovskite thin film by controlling the grain size and crystallinity through solvent vapour annealing.
机构信息
Advanced Photonics Research Institute (APRI), Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea.
出版信息
Nanoscale. 2019 Mar 28;11(13):5861-5867. doi: 10.1039/c8nr09947b.
PMID:30656325
Abstract
Organometallic halide perovskite films were treated with novel facile solvent vapour annealing to control crystal grain size as well as the crystallinity of perovskite. As both polarity and vapour pressure of the treatment solvent for perovskite increase, luminance increases and the wavelength of the photoluminescence emission peak decreases due to enhanced crystallinity and reduced grain size.
摘要
采用新型简便的溶剂蒸汽退火处理有机金属卤化物钙钛矿薄膜，以控制钙钛矿的晶粒尺寸和结晶度。随着钙钛矿处理溶剂的极性和蒸汽压的增加，由于结晶度提高和晶粒尺寸减小，亮度增加，光致发光发射峰的波长减小。
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