A Facile One-step Method to Produce Graphene-CdS Quantum Dot Nanocomposites as Promising Optoelectronic Materials

被引：675

作者：

Cao, Aoneng ^{[1
]}

Liu, Zhen ^{[1
]}

Chu, Saisai ^{[2
]}

Wu, Minghong ^{[1
]}

Ye, Zhangmei ^{[1
]}

Cai, Zhengwei ^{[1
]}

Chang, Yanli ^{[1
]}

Wang, Shufeng ^{[2
]}

Gong, Qihuang ^{[2
]}

Liu, Yuanfang ^{[1
,3
]}

机构：

[1] Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China

[2] Peking Univ, State Key Lab Mesoscop Phys, Sch Phys, Beijing 100871, Peoples R China

[3] Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

ADVANCED MATERIALS | 2010年 / 22卷 / 01期

关键词：

EXFOLIATED GRAPHITE OXIDE; AQUEOUS DISPERSIONS; REDUCTION; SHEETS; ASSEMBLIES;

D O I：

10.1002/adma.200901920

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A single-layer graphene-CdS quantum dot nanocomposite is synthesized by a one-step reaction from graphene oxide, and thus avoids the low-yield production and the aggregation of single-layer graphene sheets. This new graphene-based material shows promising optoelectronic properties. Picosecond ultrafast electron transfer from the US quantum dots to the graphene sheets has been observed by time-resolved fluorescence spectroscopy.

引用

页码：103 / +

页数：5

共 27 条

[1] Synthesis and characterization of carbon nanotube-nanocrystal heterostructures [J].

Banerjee, S ;

Wong, SS .

NANO LETTERS, 2002, 2 (03) :195-200

[2] Electronic confinement and coherence in patterned epitaxial graphene [J].

Berger, Claire ;

Song, Zhimin ;

Li, Xuebin ;

Wu, Xiaosong ;

Brown, Nate ;

Naud, Cecile ;

Mayou, Didier ;

Li, Tianbo ;

Hass, Joanna ;

Marchenkov, Atexei N. ;

Conrad, Edward H. ;

First, Phillip N. ;

de Heer, Wait A. .

SCIENCE, 2006, 312 (5777) :1191-1196

[3] Rashba effect in the graphene/Ni(111) system [J].

Dedkov, Yu. S. ;

Fonin, M. ;

Ruediger, U. ;

Laubschat, C. .

PHYSICAL REVIEW LETTERS, 2008, 100 (10)

[4] Deoxygenation of Exfoliated Graphite Oxide under Alkaline Conditions: A Green Route to Graphene Preparation [J].

Fan, Xiaobin ;

Peng, Wenchao ;

Li, Yang ;

Li, Xianyu ;

Wang, Shulan ;

Zhang, Guoliang ;

Zhang, Fengbao .

ADVANCED MATERIALS, 2008, 20 (23) :4490-4493

[5] The rise of graphene [J].

Geim, A. K. ;

Novoselov, K. S. .

NATURE MATERIALS, 2007, 6 (03) :183-191

[6] Electronic transport properties of individual chemically reduced graphene oxide sheets [J].

Gomez-Navarro, Cristina ;

Weitz, R. Thomas ;

Bittner, Alexander M. ;

Scolari, Matteo ;

Mews, Alf ;

Burghard, Marko ;

Kern, Klaus .

NANO LETTERS, 2007, 7 (11) :3499-3503

[7] Electrochemical assembly of a CdS semiconductor nanoparticle monolayer on surfaces: Structural properties and photoelectrochemical applications [J].

Granot, E ;

Patolsky, F ;

Willner, I .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (19) :5875-5881

[8] High-yield production of graphene by liquid-phase exfoliation of graphite [J].

Hernandez, Yenny ;

Nicolosi, Valeria ;

Lotya, Mustafa ;

Blighe, Fiona M. ;

Sun, Zhenyu ;

De, Sukanta ;

McGovern, I. T. ;

Holland, Brendan ;

Byrne, Michele ;

Gun'ko, Yurii K. ;

Boland, John J. ;

Niraj, Peter ;

Duesberg, Georg ;

Krishnamurthy, Satheesh ;

Goodhue, Robbie ;

Hutchison, John ;

Scardaci, Vittorio ;

Ferrari, Andrea C. ;

Coleman, Jonathan N. .

NATURE NANOTECHNOLOGY, 2008, 3 (09) :563-568

[9] Synthesis and characterization of CdS/multiwalled carbon nanotube heterojunctions [J].

Huang, Q ;

Gao, L .

NANOTECHNOLOGY, 2004, 15 (12) :1855-1860

[10] PREPARATION OF GRAPHITIC OXIDE [J].

HUMMERS, WS ;

OFFEMAN, RE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (06) :1339-1339

← 1 2 3 →