Fabrication and analysis of photoelectrode based on TiO2 nanotube/phosphor mixed TiO2 nanoparticle film for dye-sensitised solar cells
- Authors
- Cho, Dong Hoon; Kim, Kyung Hwan; Kim, Chang Seob; Choi, Hyung Wook
- Issue Date
- 2016
- Publisher
- INDERSCIENCE ENTERPRISES LTD
- Keywords
- dye-sensitised solar cell; DSSC; TiCl4; TiO2 nanotube; phosphor; ZnGa2O4:Mn2+
- Citation
- INTERNATIONAL JOURNAL OF NANOTECHNOLOGY, v.13, no.10-12, pp.778 - 789
- Journal Title
- INTERNATIONAL JOURNAL OF NANOTECHNOLOGY
- Volume
- 13
- Number
- 10-12
- Start Page
- 778
- End Page
- 789
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/9777
- DOI
- 10.1504/IJNT.2016.080358
- ISSN
- 1475-7435
- Abstract
- Dye-sensitised solar cells (DSSCs) have attracted scientific attention because of their advantages over former Si-based devices, such as flexibility, light weight, low cost, and low toxicity of the manufacturing process. Generally, DSSCs are composed of a titanium dioxide (TiO2) layer as the working electrode, on which an anchored organic dye is absorbed, a Pt layer as the counter electrode, and an electrolyte containing a redox couple (I-/I-3(-)) between them. However, a number of problems remain to be solved to improve their efficiency. We fabricated a hybrid photoelectrode comprising a TiO2 nanotube (TNT)/phosphor mixed TiO2 nanoparticle film on a TiO2 passivating layer to improve the dye adsorption and charge transport as well as reduce the electron recombination. In this paper, we describe the enhancement of the photovoltaic performance of a DSSC obtained via using a TiO2 passivation layer and a TNT/phosphor mixed TiO2 paste photoelectrode. The DSSCs with FTO glass pretreated in 90 mM TiCl4 for 90 min exhibited the highest efficiency of 5.98% and a JSC of 13.17 mA/cm(2).
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