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

Authors
Kim, Bu-YongKim, Jong-HoonLee, Ki-HeonJang, Eun-PyoHan, Chang-YeolJo, Jung-HoJang, Ho SeongYang, Heesun
Issue Date
2017-04-14
Publisher
ROYAL SOC CHEMISTRY
Citation
CHEMICAL COMMUNICATIONS, v.53, no.29, pp.4088 - 4091
Abstract
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%.
Keywords
SEMICONDUCTOR NANOCRYSTALS; OPTICAL-PROPERTIES; COLOR CONVERTERS; DIODES; DEVICES; LUMINESCENT; ELECTROLUMINESCENCE; PERFORMANCE; BRIGHT; SEMICONDUCTOR NANOCRYSTALS; OPTICAL-PROPERTIES; COLOR CONVERTERS; DIODES; DEVICES; LUMINESCENT; ELECTROLUMINESCENCE; PERFORMANCE; BRIGHT; Cd-free; quantum dots; blue emission; color tuning; core/shell
ISSN
1359-7345
URI
https://pubs.kist.re.kr/handle/201004/122848
DOI
10.1039/c7cc00952f
Appears in Collections:
KIST Article > 2017
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