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CsPbBr₃/CdS Core/Shell Structure Quantum Dots for Inverted Light-Emitting Diodes Application.

ABSTRACT: Novel CsPbBr₃/CdS core/shell structure quantum dots (QDs) were successfully synthesized using a facile hot-injection method. The corresponding CsPbBr₃/CdS QDs based light-emitting diodes (QLEDs) were further prepared, which demonstrated the maximum luminance of 354 cd/m² and an external quantum efficiency (EQE) of 0.4% with the current efficiency (CE) of 0.3 cd/A. Moreover, the optoelectronic performance of the CsPbBr₃/CdS QDs based QLEDs exhibited a comparable enhancement in contrast to the pure CsPbBr₃ QDs based QLEDs. Hypothetically, the novel CsPbBr₃/CdS structure QDs introduced one new route for advanced light emission applications of perovskite materials.

SUBMITTER: Tang X

PROVIDER: S-EPMC6640208 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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CsPbBr3/CdS Core/Shell Structure Quantum Dots for Inverted Light-Emitting Diodes Application.

Tang Xiaosheng X Yang Jie J Li Shiqi S Chen Weiwei W Hu Zhiping Z Qiu Jing J

Frontiers in chemistry 20190712

Novel CsPbBr3/CdS core/shell structure quantum dots (QDs) were successfully synthesized using a facile hot-injection method. The corresponding CsPbBr3/CdS QDs based light-emitting diodes (QLEDs) were further prepared, which demonstrated the maximum luminance of 354 cd/m2 and an external quantum efficiency (EQE) of 0.4% with the current efficiency (CE) of 0.3 cd/A. Moreover, the optoelectronic performance of the CsPbBr3/CdS QDs based QLEDs exhibited a c ...[more]

PMID: 31355189

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