Theses and Dissertations

Date of Award

12-2021

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Chemistry

First Advisor

Dr. M Jasim Uddin

Second Advisor

Dr. Tulay Atesin

Third Advisor

Dr. Manar Shoshani

Abstract

Because of unique photovoltaic properties, nanostructured morphologies of TiO2 on flexible substrate have been studied widely in recent years in dye-sensitized solar cells (DSSCs). Nanostructured electrode materials with high surface area can promote rapid charge transport and thus improve the light-to-current conversion efficiency. Herein, this project generates an improved photoanode with forest like photoactive TiO2 hierarchical microstructure using a simple and facile hydrothermal route. To improve the photocurrent efficiency, PbS quantum dot has been applied in different thicknesses to evaluate the best performance. The deposition of quantum dot was done by easy SILAR cycle. Four different SILAR cycle has been done to perform the chemical deposition on the TiO2 substrate. Instead of Pt-based counter electrode, a modified carbon fiber based counter electrode has been used in this experiment. QDSSC with TiO2 nanostructured flexible photoanode showed a significant energy conversion efficiency to a certain thickness of quantum dot.

Comments

Copyright 2021 Haimanti Majumder. All Rights Reserved.

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