Full Visible Range Covering InP/ZnS Nanocrystals with High Photometric Performance and Their Application to White Quantum Dot Light-Emitting Diodes
Author
Yang, X.
Zhao, D.
Leck K.S.
Tan S.T.
Tang, Y. X.
Zhao, J.
Demir, Hilmi Volkan
Sun, X. W.
Date
2012-04-30Source Title
Advanced Materials
Print ISSN
0935-9648
Publisher
Wiley-VCH Verlag
Volume
24
Issue
30
Pages
4180 - 4185
Language
English
Type
ArticleItem Usage Stats
135
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398
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Abstract
High-quality InP/ZnS core–shell nanocrystals with luminescence tunable over the entire visible spectrum have been achieved by a facile one-pot solvothermal method. These nanocrystals exhibit high quantum yields (above 60%), wide emission spectrum tunability and excellent photostability. The FWHM can be as narrow as 38 nm, which is close to that of CdSe nanocrystals. Also, making use of these nanocrystals, we further demonstrated a cadmium-free white QD-LED with a high color rendering index of 91. The high-performance of the resulting InP/ZnS NCs coupled with their low intrinsic toxicity may further promote industrial applications of these NC emitters.