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https://hdl.handle.net/10356/83771
Title: | Different carrier recombination processes in CsPbBr3 quantum dots and microcrystals | Authors: | Qian, Cheng Yin, Tingting Yan, Jiaxu Shen, Ze Xiang |
Keywords: | Perovskites Quantum dots |
Issue Date: | 2017 | Source: | Qian, C., Yin, T., Yan, J., & Shen, Z. X. (2017). Different carrier recombination processes in CsPbBr3 quantum dots and microcrystals. 2017 12th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR). | Conference: | 2017 12th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR) | Abstract: | Good understanding of carrier generation and recombination is crucial for applications in LEDs, lasers, single photon sources and so on. In this work, we studied and compared charge generation and recombination processes of CsPbBr3 QDs and microcrystals (MCs) in order to obtain clearer pictures for their photoluminescence. Power dependent photoluminescence experiments show that excitation species and recombination process are quite different in CsPbBr3 QDs and MCs, where the MCs contain non-radiative dark states resulting a superlinear power dependence of the PL intensity at low excitation power while the QDs materials show linear dependence. At high excitation power, trions are generated in the QDs samples. | URI: | https://hdl.handle.net/10356/83771 http://hdl.handle.net/10220/43532 |
Schools: | School of Physical and Mathematical Sciences Interdisciplinary Graduate School (IGS) |
Research Centres: | Centre for Disruptive Photonic Technologies (CDPT) Energy Research Institute @ NTU (ERI@N) |
Rights: | © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | ERI@N Conference Papers IGS Conference Papers SPMS Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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QIAN CHENG Abstract CLEO PR 2017.pdf | main article accepted version | 299.6 kB | Adobe PDF | View/Open |
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