Characteristics of TiO2 Compact Layer prepared for DSSC application

• Authors: Musila Nicholas , Munji Mathew , Simiyu Justus , Masika Eric , Nyenge Raphael , Kineene Miriam
• Languages of publication: EN

Abstracts

EN

Dye-sensitized solar cells (DSSCs) offer an economically reliable and suitable alternative in moderating the challenges presented by the existing convectional photovoltaic cells. However, the efficiency of dye-sensitized solar cells has remained relatively low. For this reason, this research was aimed at studying the characteristics of TiO2 compact layer that can be applied in DSSCs as a way of improving efficiency. To achieve this, TiO2 compact layer was deposited on a conductive glass substrate by using Holmarc’s Spray Pyrolysis system, using Ultrasonic Spray Head and spraying in the vertical geometry. X-ray Diffraction studies revealed that TiO2 compact layer was of anatase phase and had tetragonal crystalline structure. Raman spectroscopy showed that the most intense peak appeared at 142 cm-1 due to the external vibration of the anatase structure. Hall Effect studies revealed that TiO2 compact layer has a high density of charge carriers’ value of 1.25 × 1019 cm-3 hence it can be used in DSSC applications.

Keywords

EN

Raman spectroscopy; compact layer; dye sensitized solar cell; morphology index; tetragonal crystalline structure; specific surface area; spray pyrolysis

• Publisher: Altezoro s.r.o. (Slovak Republic) and Publishing Center "Dialog" (Ukraine)
• Journal: Path of Science
• Year: 2018
• Volume: 4
• Issue: 10
• Pages: 3006-3012

Dates

published

2018-10-31

Contributors

author

Musila Nicholas

• Kenyatta University

author

Munji Mathew

• Kenyatta University

author

Simiyu Justus

• University of Nairobi

author

Masika Eric

• Kenyatta University

author

Nyenge Raphael

• Kenyatta University

author

Kineene Miriam

• Kenyatta University

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Identifiers

DOI

10.22178/pos.39-6