Improved characteristics for chemically grown Cu2SnS3 promising solar absorbers through the use of TritonX-100® surfactant
Yükleniyor...
Dosyalar
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this paper, we report, for the first time, the results of the TritonX-100 (R) surfactant assisted growth of Cu2SnS3 thin films obtained by using sol-gel spin coating method and a subsequent annealing in a sulfur atmosphere. Structural, morphological, compositional, photo-electrical investigations have been carried out. X-ray diffraction patterns of the samples matched well with the reference Cu2SnS3 pattern and indicated the polycrystalline nature of the films. Crystallite size of the films increased whereas surface roughness of the films decreased with increasing Triton-X100 (R) content. The surface of the samples has been smoother with Triton-X100 (R) inclusion. The photo-sensitivity of the n-Si/CTS structures has been confirmed through photo-transient current measurements. An increment was observed in the photoinduced current values of the samples with increasing Triton-X100 (R) content and was attributed to transport of photo-induced electrons facilitated with decreasing recombination resulted from the surface enhancement of the films. Electrical conduction mechanism of the films was investigated with resistance-temperature measurements. It has been revealed that TritonX-100 (R) surfactant assisted growth is a promising way to improve conversion efficiency of Cu2SnS3 based solar cells. (C) 2014 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Cu2SnS3, Sol-gel spin coating, Thin film, Solar cell, Surfactant
Kaynak
Journal of Alloys and Compounds
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
618
