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Integration of Environmental Friendly Perovskites for High-efficiency White Light-emitting Diodes.
Liu, Hanxin; Sun, Chun; Gao, Zhiyuan; Geng, Chong; Shi, Shuangshuang; Wang, Le; Su, Sijing; Bi, Wengang.
Affiliation
  • Liu H; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, People's Republic of China.
  • Sun C; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, People's Republic of China. cs@hebut.edu.cn.
  • Gao Z; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, People's Republic of China.
  • Geng C; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, People's Republic of China.
  • Shi S; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, People's Republic of China.
  • Wang L; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, People's Republic of China.
  • Su S; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, People's Republic of China.
  • Bi W; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, People's Republic of China. wbi@hebut.edu.cn.
Nanoscale Res Lett ; 14(1): 152, 2019 May 02.
Article in En | MEDLINE | ID: mdl-31049739
ABSTRACT
Perovskite quantum dots (QDs) have been widely used in white light-emitting diodes (WLEDs), due to their high quantum yield (QY), tunable bandgap, and simple preparation. However, the red-emitting perovskite QDs are usually containing iodine (I), which is not stable under continuous light irradiation. Herein, perovskite-based WLED is fabricated by lead-free bismuth (Bi)-doped inorganic perovskites Cs2SnCl6 and less-lead Mn-doped CsPbCl3 QDs, which emits white light with color coordinates of (0.334, 0.297). The Bi-doped Cs2SnCl6 and Mn-doped CsPbCl3 QDs both show excellent stability when kept in the ambient air. As benefits from this desired characteristic, the as-prepared WLED shows excellent stability along with operating time. These results can promote the application of inorganic perovskite QDs in the field of WLEDs.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nanoscale Res Lett Year: 2019 Document type: Article
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nanoscale Res Lett Year: 2019 Document type: Article