Reduced Graphene Oxide/Copper Phthalocyanine Composite and Its Optoelectrical Properties

被引：137

作者：

Chunder, Anindarupa ^{[1
,2
]}

Pal, Tanusri ^{[1
]}

Khondaker, Saiful I. ^{[1
,3
]}

Zhai, Lei ^{[1
,2
]}

机构：

[1] Univ Cent Florida, NanoSci Technol Ctr, Orlando, FL 32826 USA

[2] Univ Cent Florida, Dept Chem, Orlando, FL 32826 USA

[3] Univ Cent Florida, Dept Phys, Orlando, FL 32826 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 35期

基金：

美国国家科学基金会;

关键词：

CARBON NANOTUBE BUNDLES; COPPER-PHTHALOCYANINE; ELECTRICAL-CONDUCTIVITY; GRAPHITE OXIDE; FILMS; RAMAN; SEMICONDUCTOR; NANOCOMPOSITE; FABRICATION; ELECTRODES;

D O I：

10.1021/jp104587n

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reduced graphene oxide (RGO) composites containing tetrasulfonate salt of copper phthalocyanine (TSCuPc) are fabricated through the reduction of graphene oxide in the presence of water-soluble TSCuPc. The interaction between RGO monolayer and TSCuPc is investigated using ultraviolet-visible (UV-vis) spectroscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. The composites of electron donor (TSCuPc) and acceptor (RGO) are successfully incorporated in devices, and their optoelectronic properties are studied. Compared with RGO films, the RGO/TSCuPc composite films have lower conductivity (dark current) but much higher photoconductivity and photoresponsivity because of the presence of donor/acceptor materials and large donor/acceptor (D/A) interfaces for charge generation. The optoelectrical properties of the composite film can be improved by thermal annealing and optimizing the TSCuPc content. The RGO/TSCuPc composite films fabricated by the solution processing method could be used as large-area optoelectronics devices.

引用

页码：15129 / 15135

页数：7

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