PL EN


Journal
2018 | 4 | 9 | 5001-5008
Article title

Effect of TiO2 Compact Layer on DSSC Performance

Content
Title variants
Languages of publication
EN
Abstracts
EN
Dye-sensitized solar cells offer an economically reliable and suitable alternative in moderating the challenges presented by the existing convectional photovoltaic cells. Whereas, for convectional solar cells the semiconductor adopts both the duty of light absorption and charge carrier transport, these two functions are separated in dye-sensitized solar cells. However, the efficiency of dye-sensitized solar cells has remained relatively low. For this reason, this research was aimed at how to increase the dye-sensitized solar cells performance. To achieve this, compact cover of TiO2 was deposited on a conductive glass substrate by using Holmarc’s Spray Pyrolysis system, using Ultrasonic Spray Head and spraying in vertical geometry, while TiO2 nanoparticles and nanotubes were deposited by screen printing technique on top of a transparent conducting FTO glass slide with or without the TiO2 compact layer. Transmission characteristics showed that introducing TiO2 compact layer on the conductive film lowers the transmission while reflectance properties were less than 15 % for all the prepared thin films. SEM micrographs showed that TiO2 nanotubes had a skein-like morphology with abundant number of nanotubes intertwined together to form a large surface area film. Solar cell performance properties revealed that introducing compact layer to dye-sensitized solar cells improved the performance by 145 % (from 1.31 % to 3.21 %) while TiCl4 treatment on compact layered dye-sensitized solar cells increased the efficiency by 28.79 % (from 0.66 % to 0.85 %).
Journal
Year
Volume
4
Issue
9
Pages
5001-5008
Physical description
Dates
published
2018-09-30
Contributors
  • Kenyatta University
author
  • Kenyatta University
author
  • University of Nairobi
author
  • Kenyatta University
  • Kenyatta University
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.desklight-f1a74863-cd0d-48b1-972a-3f7b76b746fe
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