Water soluble reduced graphene oxide as an efficient photoluminescence quencher for semiconductor quantum dots

被引：7

作者：

Tang, Haiping ^{[1
]}

Sun, Luwei ^{[2
]}

He, Haiping ^{[2
]}

机构：

[1] Baoji Univ Arts & Sci, Coll Mech Engn, Baoji 721007, Peoples R China

[2] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

OPTICAL MATERIALS | 2017年 / 64卷

关键词：

Graphene; Solution-process; Luminescence; Quantum dots; EXFOLIATED GRAPHITE OXIDE; SULFONATED GRAPHENE; AQUEOUS DISPERSIONS; CDTE NANOCRYSTALS; NANOSHEETS; FABRICATION; REDUCTION; FILMS;

D O I：

10.1016/j.optmat.2016.11.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chemically derived water soluble reduced graphene oxide (rGO) is synthesized via a two-step reduction approach assisted with sulfonation. X-ray photoelectron spectroscopy confirms the removal of oxygen related groups from GO. The obtained rGO can effectively quench the photoluminescence (PL) of CdTe quantum dots. Concentration- and volume-dependent quenching behaviors are investigated to reveal the quenching mechanism. The Stern-Volmer plot shows exponential dependence on the rGO concentration, indicating that "sphere of action" model works when the extent of quenching is large. (C) 2016 Published by Elsevier B.V.

引用

页码：9 / 12

页数：4

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