Synthesis of highly efficient azure-to-blue-emitting Zn-Cu-Ga-S quantum dots

Synthesis of highly efficient azure-to-blue-emitting Zn-Cu-Ga-S quantum dots

To realize blue emission-capable non-Cd I-III-VI quantum dots (QDs), we explore the synthesis of ternary Cu-Ga-S (CGS) QDs and subsequent quaternary Zn-Cu-Ga-S (ZCGS) via Zn alloying into a CGS host. The resulting ZCGS/ZnS core/shell QDs possess not only Zn content-dependent tunable emissions in the...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2017-04, Vol.53 (29), p.4088-4091
Hauptverfasser: Kim, Bu-Yong, Kim, Jong-Hoon, Lee, Ki-Heon, Jang, Eun-Pyo, Han, Chang-Yeol, Jo, Jung-Ho, Jang, Ho Seong, Yang, Heesun
Format: Artikel
Sprache:eng
Schlagworte:
Emission
Quantum dots
Synthesis
Zinc base alloys
Zinc sulfides
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Zusammenfassung:To realize blue emission-capable non-Cd I-III-VI quantum dots (QDs), we explore the synthesis of ternary Cu-Ga-S (CGS) QDs and subsequent quaternary Zn-Cu-Ga-S (ZCGS) via Zn alloying into a CGS host. The resulting ZCGS/ZnS core/shell QDs possess not only Zn content-dependent tunable emissions in the azure-to-blue range but also exceptional quantum yields of 78-83%.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc00952f