Dramatically Enhanced Photoluminescence from Femtosecond Laser Induced Micro-Nanostructures on MAPbBr(3) Single Crystal Surface
文献类型：期刊论文
| 作者 | Xing, J.; Zheng, X. ; Yu, Z.; Lei, Y. H.; Hou, L.; Zou, Y. T.; Zhao, C.; Wang, B.; Yu, H. T.; Pan, D. X.
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| 刊名 | Advanced Optical Materials
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| 出版日期 | 2018 |
| 卷号 | 6期号:20页码:9 |
| 关键词 | femtosecond laser processing MAPbBr(3) single-crystal micro-/nanostructures photoluminescence enhancement light-emitting-diodes halide perovskite nanowires solar-cells efficiency photovoltaics layer br cl Materials Science Optics |
| ISSN号 | 2195-1071 |
| DOI | 10.1002/adom.201800411 |
| 英文摘要 | Single crystal perovskites are used in solar cells, photodetectors, and other devices due to their excellent light absorption and carrier transport characteristics. However, for light-emitting applications, photoluminescence (PL) is usually weak for MAPbBr(3) (MA = CH3NH3+) single crystals (MBSCs) compared with their polycrystalline counterpart. Therefore, developing novel techniques to process MBSCs with different morphologies for PL-related applications is greatly needed. The current strategies for making perovskite crystals are mostly based on bottom-up method (chemical synthesis and assembling). Here, an easy method to achieve top-down fabrication of MBSCs, i.e., femtosecond laser processing MBSC surface by controlling the laser parameters is demonstrated. The femtosecond laser processing technology can achieve two orders of magnitude enhancement under ambient conditions in PL. In addition, the processed regions also show three times enhancement in PL under nitrogen environment. It is assumed that this is mainly due to the texture based on photon recycling and light out-coupling mechanism, and the passivation of surface recombination centers on MBSC. This study not only provides a convenient top-down strategy to achieve a range of morphological micro-/nanostructures with enhanced PL on MBSC surface, but also paves the way for applications of MBSCs in light emitting or PL imaging devices. |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/60959]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Xing, J.,Zheng, X.,Yu, Z.,et al. Dramatically Enhanced Photoluminescence from Femtosecond Laser Induced Micro-Nanostructures on MAPbBr(3) Single Crystal Surface[J]. Advanced Optical Materials,2018,6(20):9. |
| APA | Xing, J..,Zheng, X..,Yu, Z..,Lei, Y. H..,Hou, L..,...&Guo, C. L..(2018).Dramatically Enhanced Photoluminescence from Femtosecond Laser Induced Micro-Nanostructures on MAPbBr(3) Single Crystal Surface.Advanced Optical Materials,6(20),9. |
| MLA | Xing, J.,et al."Dramatically Enhanced Photoluminescence from Femtosecond Laser Induced Micro-Nanostructures on MAPbBr(3) Single Crystal Surface".Advanced Optical Materials 6.20(2018):9. |
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