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Stabilizing the CsSnCl3 Perovskite Lattice by B-Site Substitution for Enhanced Light Emission | |
2019-07-23 | |
发表期刊 | CHEMISTRY OF MATERIALS |
ISSN | 0897-4756 |
卷号 | 31期号:14页码:4999-5004 |
发表状态 | 已发表 |
DOI | 10.1021/acs.chemmater.9b00433 |
摘要 | All-inorganic metal halide perovskites are noted for their excellent optoelectronic properties and good chemical stability but also a propensity to transform into nonperovskite phases. A case in point is lead-free CsSnCl3, whose perovskite Phase I is metastable at room temperature and could not be stabilized by partial substitution of Cs+ or Cl-. Judging from the radii of the constituent ions of CsSnCl3, we paid attention to octahedral cations smaller than Sn2+ and selected Mn2+ and In3+ for substitution at the B-site. A quantitative structural indicator, volume per formula unit (V/Z), guided the syntheses of CsSn0.9Mn0.1Cl3 (CTMC) and CsSn0.9In0.067Cl3 (CTIC), which are shown by single-crystal X-ray diffraction and differential scanning calorimetry to be homogeneous, stable perovskite phases at room temperature. CTMC turns into a disordered perovskite structure at 193 K, lower than the corresponding transition temperature of CsSnCl3 by nearly 100 K. Vacancies in CTIC result in a more flexible crystal structure than CTMC and CsSnCl3. CTMC and CTIC appear bright yellow with a steep absorption edge at similar to 450 nm, and their photoluminescence peaks are located at 645 and 484 nm, respectively, with, intensities significantly enhanced from CsSnCl3. Energy transfer processes are proposed to account for the Stokes shifts in the photoluminescence of CTMC and CTIC. Thin films of CTMC glow red under ultraviolet excitation and hold promise for electroluminescence devices. This study gives insights into the structural and electronic effects of ionic substitution in CsSnCl3 and can be extended to other metastable perovskite phases. |
收录类别 | SCI ; SCIE ; EI |
资助项目 | Ministry of Science and Technology of China[2016YFA0204000] |
WOS研究方向 | Chemistry ; Materials Science |
WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary |
WOS记录号 | WOS:000477093000004 |
出版者 | AMER CHEMICAL SOC |
EI入藏号 | 20193307317310 |
EI主题词 | Chemical stability ; Crystal structure ; Differential scanning calorimetry ; Energy transfer ; Indium compounds ; Manganese compounds ; Metal halides ; Metastable phases ; Perovskite ; Photoluminescence ; Single crystals ; Tin compounds |
EI分类号 | Minerals:482.2 ; Light/Optics:741.1 ; Chemistry:801 ; Physical Chemistry:801.4 ; Chemical Products Generally:804 ; Crystalline Solids:933.1 ; Crystal Lattice:933.1.1 ; Temperature Measurements:944.6 |
WOS关键词 | PHASE-TRANSITION ; CRYSTAL-STRUCTURE ; BINARY-SYSTEMS ; CESIUM ; PHOTOLUMINESCENCE ; NANOCRYSTALS ; MN2+ ; CONDUCTIVITY ; PRESSURE ; DYNAMICS |
原始文献类型 | Article |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/61078 |
专题 | 物质科学与技术学院_本科生 物质科学与技术学院_PI研究组_宁志军组 物质科学与技术学院_PI研究组_米启兮组 物质科学与技术学院_硕士生 物质科学与技术学院_博士生 |
共同第一作者 | Zhang, Qiqi |
通讯作者 | Mi, Qixi |
作者单位 | ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院 |
第一作者的第一单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Wu, Ziyan,Zhang, Qiqi,Li, Binghan,et al. Stabilizing the CsSnCl3 Perovskite Lattice by B-Site Substitution for Enhanced Light Emission[J]. CHEMISTRY OF MATERIALS,2019,31(14):4999-5004. |
APA | Wu, Ziyan.,Zhang, Qiqi.,Li, Binghan.,Shi, Zhifang.,Xu, Kaimin.,...&Mi, Qixi.(2019).Stabilizing the CsSnCl3 Perovskite Lattice by B-Site Substitution for Enhanced Light Emission.CHEMISTRY OF MATERIALS,31(14),4999-5004. |
MLA | Wu, Ziyan,et al."Stabilizing the CsSnCl3 Perovskite Lattice by B-Site Substitution for Enhanced Light Emission".CHEMISTRY OF MATERIALS 31.14(2019):4999-5004. |
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