Red Light-Emitting Diode Based on Blue InGaN Chip with CdTe(x)S((1 − x)) Quantum Dots

Thioglycolic acid-capped CdTe(x)S((1 − x)) quantum dots (QDs) were synthesized through a one-step approach in an aqueous medium. The CdTe(x)S((1 − x)) QDs played the role of a color conversion center. The structural and luminescent properties of the obtained CdTe(x)S((1 − x)) QDs were investigated....

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Detalles Bibliográficos
Autores principales: Wang, Rongfang, Wei, Xingming, Qin, Liqin, Luo, Zhihui, Liang, Chunjie, Tan, Guohang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2017
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5307408/
https://www.ncbi.nlm.nih.gov/pubmed/28181166
http://dx.doi.org/10.1186/s11671-016-1814-x
Descripción
Sumario:Thioglycolic acid-capped CdTe(x)S((1 − x)) quantum dots (QDs) were synthesized through a one-step approach in an aqueous medium. The CdTe(x)S((1 − x)) QDs played the role of a color conversion center. The structural and luminescent properties of the obtained CdTe(x)S((1 − x)) QDs were investigated. The fabricated red light-emitting hybrid device with the CdTe(x)S((1 − x)) QDs as the phosphor and a blue InGaN chip as the excitation source showed a good luminance. The Commission Internationale de L’Eclairage coordinates of the light-emitting diode (LED) at (0.66, 0.29) demonstrated a red LED. Results showed that CdTe(x)S((1 − x)) QDs can be excited by blue or near-UV regions. This feature presents CdTe(x)S((1 − x)) QDs with an advantage over wavelength converters for LEDs.

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