Journal
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
Volume 26, Issue -, Pages 276-281Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2014.05.016
Keywords
Zinc oxide; Transparent conductive thin films; High temperature; Stability; Dye-sensitized solar cells
Categories
Funding
- Talent Introduction Foundation of Changsha University of Science and Technology, National Natural Science Foundation of China [51302021]
- Scientific Research Fund of Hunan Provincial Education Department [13C1025]
- Visiting Scholar Foundation of State Key Laboratory of Silicon Materials at Zhejiang University [SKL2013-8]
- National Natural Science Foundation of China [51002131, 51304031]
- Hunan Provincial Natural Science Foundation of China [14JJ3089]
- Construct Program of the Key Discipline in Hunan Province
- Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
Ask authors/readers for more resources
Generally, optoelectronic devices are fabricated at a high temperature. So the stability of properties for transparent conductive oxide (TCO) films at such a high temperature must be excellent. In the paper, we investigated the thermal stability of Ga-doped ZnO (GZO) transparent conductive films which were heated in air at a high temperature up to 500 degrees C for 30 min. After heating in air at 500 degrees C for 30 min, the lowest sheet resistance value for the GZO film grown at 300 degrees C increased from 5.5 Omega/sq to 8.3 Omega/sq, which is lower than 10 Omega/sq. The average transmittance in the visible light of all the GZO films is over 90%, and the highest transmittance is as high as 96%, which is not influenced by heating. However, the transmittance in the near-infrared (NIR) region for the GZO film grown at 350 degrees C increases significantly after heating. And the grain size of the GZO film grown at 350 degrees C after annealing at 500 degrees C for 30 min is the biggest. Then dye-sensitized TiO2 NPs based solar cells were fabricated on the GZO film grown at 350 degrees C (which exhibits the highest transmittance in NIR region after heating at 500 degrees C for 30 min) and 300 degrees C (which exhibits the lowest sheet resistance after heating at 500 degrees C for 30 min). The dye-sensitized solar cell (DSSC) fabricated on the GZO film grown at 350 degrees C exhibits superior conversion efficiency. Therefore, transparent conductive glass applying in DSSCs must have a low sheet resistance, a high transmittance in the ultraviolet-visible-infrared region and an excellent surface microstructure. (C) 2014 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available