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光激发态对有机-无机卤化铅钙钛矿中辐射复合的局域与长程扩散效应

Local Versus Long-Range Diffusion Effects of Photoexcited States on Radiative Recombination in Organic-Inorganic Lead Halide Perovskites.

作者信息

Vrućinić Milan, Matthiesen Clemens, Sadhanala Aditya, Divitini Giorgio, Cacovich Stefania, Dutton Sian E, Ducati Caterina, Atatüre Mete, Snaith Henry, Friend Richard H, Sirringhaus Henning, Deschler Felix

机构信息

Cavendish Laboratory University of Cambridge JJ Thomson Avenue Cambridge CB3 0HE UK.

Department of Materials Science and Metallurgy University of Cambridge 27 Charles Babbage Road Cambridge CB3 0FS UK.

出版信息

Adv Sci (Weinh). 2015 Jul 14;2(9):1500136. doi: 10.1002/advs.201500136. eCollection 2015 Sep.

DOI:10.1002/advs.201500136
PMID:27980979
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5115383/
Abstract

shows localized regions of increased emission with dimensions ≈500 nm. Maps of the spectral emission line shape show narrower emission lines in high emission regions, which can be attributed to increased order. Excited states do not diffuse out of high emission regions before they decay, but are decoupled from nearby regions, either by slow diffusion rates or energetic barriers.

摘要

显示出尺寸约为500纳米的发射增强的局部区域。光谱发射线形状图显示，高发射区域的发射线更窄，这可归因于有序性增加。激发态在衰变之前不会扩散出高发射区域，而是通过缓慢的扩散速率或能量势垒与附近区域解耦。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/46f3/5115383/674c55bc3d81/ADVS-2-0d-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/46f3/5115383/a0f35b31016c/ADVS-2-0d-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/46f3/5115383/73c31c1c488a/ADVS-2-0d-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/46f3/5115383/674c55bc3d81/ADVS-2-0d-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/46f3/5115383/a0f35b31016c/ADVS-2-0d-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/46f3/5115383/73c31c1c488a/ADVS-2-0d-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/46f3/5115383/674c55bc3d81/ADVS-2-0d-g003.jpg

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