Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.matlet.2013.11.060
Title: Conversion efficiency enhancement of CdS quantum dot-sensitized electrospun nanostructured TiO2 solar cells by organic dipole treatment
Authors: Yang, S.
Nair, A.S.
Ramakrishna, S. 
Keywords: Electrospinning
Nanocomposites
Quantum dot-sensitized solar cells
Successive ionic layer adsorption and reaction
Surfaces
Issue Date: 1-Feb-2014
Citation: Yang, S., Nair, A.S., Ramakrishna, S. (2014-02-01). Conversion efficiency enhancement of CdS quantum dot-sensitized electrospun nanostructured TiO2 solar cells by organic dipole treatment. Materials Letters 116 : 345-348. ScholarBank@NUS Repository. https://doi.org/10.1016/j.matlet.2013.11.060
Abstract: Here we fabricated quantum dot-sensitized solar cells (QDSCs) based on electrospinning of unique TiO2 nanostructures and subsequent CdS QDs deposition via successive ionic layer adsorption and reaction (SILAR) followed by dipole treatment (DT). It was found that by treating with 4-methoxy benzenethiol for 24 h, an overall conversion efficiency of 1.17% was achieved under AM1.5 illumination which corresponds to a dramatic 100% enhancement compared with that of untreated cells. The significant photovoltaic improvement was attributed to the upward shifting of CdS QDs energy levels for efficient charge separation and effective electron transport in electrospun TiO 2 nanostructures which is confirmed by electrochemical impedance spectroscopy. © 2013 Elsevier B.V.
Source Title: Materials Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/84942
ISSN: 0167577X
DOI: 10.1016/j.matlet.2013.11.060
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