| Autor: |
Cheng X; Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (BIT), Beijing 100081, P. R. China., Han Y; Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (BIT), Beijing 100081, P. R. China., Cheng T; Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (BIT), Beijing 100081, P. R. China., Xie Y; Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (BIT), Beijing 100081, P. R. China., Chang X; Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (BIT), Beijing 100081, P. R. China., Lin Y; Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (BIT), Beijing 100081, P. R. China., Lv L; Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (BIT), Beijing 100081, P. R. China., Li J; Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (BIT), Beijing 100081, P. R. China., Yin J; Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, 999077 Hong Kong, P. R. China., Cui BB; Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (BIT), Beijing 100081, P. R. China. |
| Abstrakt: |
Low-dimensional organic-inorganic metal halides (LOMHs) recently have attracted much attention due to their tunable crystal structures and excellent photoelectric properties. The configuration and arrangement of organic cations in LOMHs have significant effect on the structure of inorganic frameworks and luminescence properties. In this work, we systematically explored the "spatial effect" and "hydrogen bonding effect" of organic cations on the structure and properties of LOMHs, by synthesizing three LOMHs including (N-AD)PbCl 4 , (N-AD) 2 Pb 2 Br 7, and (N-AD) 4 Pb 3 I 12 (N-AD: N-acetylethylenediamine, C 4 H 10 N 2 O). Specifically, (110)-oriented two-dimensional (N-AD)PbCl 4 and (N-AD) 2 Pb 2 Br 7 with manifest blue-white emissions, originating from the free excitons (FEs) and self-trapped excitons (STEs), respectively. The UV-pumped light-emitting diode (LED)-based on (N-AD) 2 Pb 2 Br 7 was prepared, and the highest color rendering index (CRI) and correlated color temperature (CCT) were up to 80 and 4484 K, respectively. This proves its potential application in solid-state lighting. |
