Issue 6, 2018

Enhanced photoelectric performance of CdS/CdSe co-sensitized TiO2 nanosheets array films

Abstract

In this study, vertically aligned titanium dioxide nanosheets (TiO2NSs) array films were employed for the fabrication of photoanodes for quantum-dot sensitized solar cells (QDSSCs). The TiO2NSs array films were synthesized by a hydrothermal method. Then, cadmium sulfide (CdS) and cadmium selenide (CdSe) were assembled onto the TiO2NSs array films through chemical bath deposition (CBD) and successive ionic layer adsorption and reaction (SILAR), respectively. Detailed characterization measurements were carried out to analyse the crystallinity, microstructure, composition and optical properties of the samples. The CdS and CdSe QDs were densely and uniformly deposited on both {001} and {101} facets of the TiO2NSs array films. Moreover, the effect of CdS deposition time and number of CdSe deposition cycles (C) on the photoelectric performance was also investigated in detail. The best performance of 4.77% was achieved under AM 1.5 G illumination with Jsc = 18.22 mA cm−2, Voc = 0.51 V, and FF = 0.52 when the deposition time of CdS was 30 min and the deposition cycle of CdSe was 10C. The enhanced photoelectric performance mechanism of the co-sensitized device is also discussed in this paper.

Graphical abstract: Enhanced photoelectric performance of CdS/CdSe co-sensitized TiO2 nanosheets array films

Supplementary files

Article information

Article type
Paper
Submitted
23 Feb 2018
Accepted
29 Mar 2018
First published
05 Apr 2018

Sustainable Energy Fuels, 2018,2, 1262-1268

Enhanced photoelectric performance of CdS/CdSe co-sensitized TiO2 nanosheets array films

T. Liu, J. Wang, L. Liu, S. Feng, P. Su, H. Yang and W. Fu, Sustainable Energy Fuels, 2018, 2, 1262 DOI: 10.1039/C8SE00084K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements