Effective light harvesting in CdS nanoparticle-sensitized rutile TiO2 microspheres

被引：56

作者：

Mali, Sawanta S. ^{[1
]}

Devan, Rupesh S. ^{[2
]}

Ma, Yuan-Ron ^{[2
]}

Betty, Chirayath A. ^{[3
]}

Bhosale, Popatrao N. ^{[4
]}

Panmand, Rajendra P. ^{[5
]}

Kale, Bharat B. ^{[5
]}

Jadkar, Sandesh R. ^{[6
]}

Patil, Pramod S. ^{[1
,7
]}

Kim, Jin-Hyeok ^{[7
]}

Hong, Chang Kook ^{[8
]}

机构：

[1] Shivaji Univ, Dept Phys, Thin Film Mat Lab, Kolhapur 416004, Maharashtra, India

[2] Natl Dong Hwa Univ, Dept Phys, Hualien 97401, Taiwan

[3] BARC, Div Chem, Mumbai 85, Maharashtra, India

[4] Shivaji Univ, Dept Chem, Mat Res Lab, Kolhapur 416004, Maharashtra, India

[5] Ctr Mat Elect Technol, Pune 411008, Maharashtra, India

[6] Univ Pune, Dept Phys, Pune 411007, Maharashtra, India

[7] Chonnam Natl Univ, Dept Mat Sci, Kwangju 500757, South Korea

[8] Chonnam Natl Univ, Sch Appl Chem Engn, Kwangju 500757, South Korea

来源：

ELECTROCHIMICA ACTA | 2013年 / 90卷

关键词：

CdS sensitized TiO2 microspheres; XPS; FT-Raman; 2.34% power conversion efficiency; QUANTUM DOTS; SOLAR-CELLS; HYDROTHERMAL SYNTHESIS; EFFICIENCY;

D O I：

10.1016/j.electacta.2012.12.017

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this article, we focused on cadmium sulphide (CdS) nanoparticles (NPs) sensitized rutile TiO2 microspheres (TMS) as a photoanode, which has been studied systematically. Hydrothermally grown TMS are sensitized with CdS NPs by simple and cost effective successive ionic layer adsorption and reaction (SILAR) technique. The synthesized CdS and CdS-TMS samples were characterized by Fourier Transform Raman Spectroscopy (FT-Raman), X-ray photoelectron spectroscopy (XPS) and FESEM characterization techniques. The CdS and CdS-TMS samples were further used for their photoelectrochemical (PEC) performance and were tested in Na2S-NaOH-S and Na2S electrolytes respectively. When CdS nanoparticles are coated on TMS, it exhibits improved photoelectrochemical (PEC) performance with maximum short circuit current of (J(SC)) 2.75 mA/cm(2). The Judiciously optimized CdS-decorated TiO2 morphology will be helpful for effective light-harvesting and fast electron-transfer from CdS to conduction band (CB) of TiO2. The highest power conversion efficiency of semiconductor-sensitized solar cells (SSSCs) i.e. CdS NP-sensitized TMS for the first time is 2.34% which is much higher than the bare CdS sample. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：666 / 672

页数：7

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