Synthesis and characterization of cadmium selenide nanostructures on porous aluminum oxide templates by high frequency alternating current electrolysis

被引：9
|
作者：
Sankar, P. Ram [1 ]
Tiwari, Pragya
Kumar, Ravi
Ganguli, Tapas
Mukherjee, C.
Srivastava, A. K.
Oak, S. M.
Pathak, Rajesh K. [2 ]
机构：
[1] Raja Ramanna Ctr Adv Technol, Chem Treatment Lab, Indore 452013, Madhya Pradesh, India
[2] Govt Holkar Sci Coll, Dept Chem, Indore, Madhya Pradesh, India
来源：
APPLIED SURFACE SCIENCE | 2010年 / 256卷 / 07期
关键词：
Anodic oxide template; High frequency alternating current; Cadmium selenide; End standing nanostrips; Optical studies; Band gap; Quantum confinement; CDSE NANOWIRE ARRAYS; ANODIC ALUMINA; ELECTROCHEMICAL FABRICATION; THIN-FILMS; ELECTRODEPOSITION; DEPOSITION; GROWTH; NANOCRYSTALS; PARTICLES; PROPERTY;
D O I：
10.1016/j.apsusc.2009.09.054
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：
We have successfully deposited nanostructured cadmium selenide (CdSe) inside anodic aluminum oxide (AAO) templates from aqueous electrolyte containing cadmium sulfate, selenium oxide and mercuric chloride by using high frequency alternating current (19 V-rms, 200 Hz). Addition of mercury ions aids in the deposition of CdSe inside anodic oxide pores. Scanning and transmission electron microscopy studies of the deposit etched in phosphoric acid showed the presence of end standing nanostrips. Energy dispersive X-ray analysis of the deposit confirmed the presence of cadmium and selenium in the deposit. X-ray diffraction (XRD) studies of the deposit showed small but broad diffraction peaks consistent with the presence of hexagonal CdSe. Optical studies revealed blue shift in band gap energy due to quantum confinement. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：2097 / 2103
页数：7
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