CsPbBr(3)/CdS Core/Shell Structure Quantum Dots for Inverted Light-Emitting Diodes Application

Novel CsPbBr(3)/CdS core/shell structure quantum dots (QDs) were successfully synthesized using a facile hot-injection method. The corresponding CsPbBr(3)/CdS QDs based light-emitting diodes (QLEDs) were further prepared, which demonstrated the maximum luminance of 354 cd/m(2) and an external quantu...

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Detalles Bibliográficos
Autores principales: Tang, Xiaosheng, Yang, Jie, Li, Shiqi, Chen, Weiwei, Hu, Zhiping, Qiu, Jing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6640208/
https://www.ncbi.nlm.nih.gov/pubmed/31355189
http://dx.doi.org/10.3389/fchem.2019.00499
Descripción
Sumario:Novel CsPbBr(3)/CdS core/shell structure quantum dots (QDs) were successfully synthesized using a facile hot-injection method. The corresponding CsPbBr(3)/CdS QDs based light-emitting diodes (QLEDs) were further prepared, which demonstrated the maximum luminance of 354 cd/m(2) 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 CsPbBr(3)/CdS QDs based QLEDs exhibited a comparable enhancement in contrast to the pure CsPbBr(3) QDs based QLEDs. Hypothetically, the novel CsPbBr(3)/CdS structure QDs introduced one new route for advanced light emission applications of perovskite materials.

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