Electrophoretic Deposition Of Cdse Nanoparticles Photoanode For Quantum Dots Sensitized Solar Cells

CdSe nanoparticle was used as sensitizer in quantum dots sensitized solar cell (QDSSC). CdSe film was deposited on fluorine doped tin oxide (FTO) substrate by using electrophoretic deposition (EPD) as photoanode. The uniformity and coverage of CdSe film leading to improve efficiency and charge trans...

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Main Author:	Ishak, Mohamad Nizam
Format:	Thesis
Language:	English
Published:	2019
Subjects:	T Technology
Online Access:	http://eprints.usm.my/46725/1/Electrophoretic%20Deposition%20Of%20Cdse%20Nanoparticles%20Photoanode%20For%20Quantum%20Dots%20Sensitized%20Solar%20Cells.pdf
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spelling	my-usm-ep.467252021-11-17T03:42:12Z Electrophoretic Deposition Of Cdse Nanoparticles Photoanode For Quantum Dots Sensitized Solar Cells 2019-02-01 Ishak, Mohamad Nizam T Technology TA401-492 Materials of engineering and construction. Mechanics of materials CdSe nanoparticle was used as sensitizer in quantum dots sensitized solar cell (QDSSC). CdSe film was deposited on fluorine doped tin oxide (FTO) substrate by using electrophoretic deposition (EPD) as photoanode. The uniformity and coverage of CdSe film leading to improve efficiency and charge transfer of electron in QDSSC. In this research, two type of ligands were studied that were trioctylphosphine oxide (TOPO) and mercaptoundecanoic acid (MUA). TOPO capped CdSe nanoparticles were synthesized by hot injection method and using ligand exchange method to change TOPO capped CdSe to MUA capped CdSe. The purification process of CdSe nanoparticles solution was done with methanol to remove impurities. CdSe nanoparticles with diameter in the range of 2.27 nm to 3.36 nm were used for deposition of single layer and bi-layer of film. The applied voltage from 100 V to 400 V with deposition time of 5 minutes in chloroform solvent was used to deposit CdSe film on FTO by EPD. The CdSe/FTO was assembled with copper(II)sulfide (Cu2S) counter electrode and polysulfide electrolyte for I-V and electrochemical impedance spectroscopy (EIS) measurement for QDSSC. For single layer, the highest efficiency was recorded for CdSe/MUA (3.36 nm) of 0.132% with 195 Ω of Rct and the lowest efficiency was for CdSe/TOPO nanoparticle (2.27 nm) of 0.0164% with 15029 Ω of Rct. The combination of bi-layer for big/small (3.36/2.27 nm) CdSe/TOPO nanoparticles shown highest efficiency of 0.502% with 7258 Ω of Rct as compared to small/big (2.27/3.36 nm) particle that only have efficiency of 0.125% with 10153 Ω of Rct. 2019-02 Thesis http://eprints.usm.my/46725/ http://eprints.usm.my/46725/1/Electrophoretic%20Deposition%20Of%20Cdse%20Nanoparticles%20Photoanode%20For%20Quantum%20Dots%20Sensitized%20Solar%20Cells.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T Technology T Technology
spellingShingle	T Technology T Technology Ishak, Mohamad Nizam Electrophoretic Deposition Of Cdse Nanoparticles Photoanode For Quantum Dots Sensitized Solar Cells
description	CdSe nanoparticle was used as sensitizer in quantum dots sensitized solar cell (QDSSC). CdSe film was deposited on fluorine doped tin oxide (FTO) substrate by using electrophoretic deposition (EPD) as photoanode. The uniformity and coverage of CdSe film leading to improve efficiency and charge transfer of electron in QDSSC. In this research, two type of ligands were studied that were trioctylphosphine oxide (TOPO) and mercaptoundecanoic acid (MUA). TOPO capped CdSe nanoparticles were synthesized by hot injection method and using ligand exchange method to change TOPO capped CdSe to MUA capped CdSe. The purification process of CdSe nanoparticles solution was done with methanol to remove impurities. CdSe nanoparticles with diameter in the range of 2.27 nm to 3.36 nm were used for deposition of single layer and bi-layer of film. The applied voltage from 100 V to 400 V with deposition time of 5 minutes in chloroform solvent was used to deposit CdSe film on FTO by EPD. The CdSe/FTO was assembled with copper(II)sulfide (Cu2S) counter electrode and polysulfide electrolyte for I-V and electrochemical impedance spectroscopy (EIS) measurement for QDSSC. For single layer, the highest efficiency was recorded for CdSe/MUA (3.36 nm) of 0.132% with 195 Ω of Rct and the lowest efficiency was for CdSe/TOPO nanoparticle (2.27 nm) of 0.0164% with 15029 Ω of Rct. The combination of bi-layer for big/small (3.36/2.27 nm) CdSe/TOPO nanoparticles shown highest efficiency of 0.502% with 7258 Ω of Rct as compared to small/big (2.27/3.36 nm) particle that only have efficiency of 0.125% with 10153 Ω of Rct.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Ishak, Mohamad Nizam
author_facet	Ishak, Mohamad Nizam
author_sort	Ishak, Mohamad Nizam
title	Electrophoretic Deposition Of Cdse Nanoparticles Photoanode For Quantum Dots Sensitized Solar Cells
title_short	Electrophoretic Deposition Of Cdse Nanoparticles Photoanode For Quantum Dots Sensitized Solar Cells
title_full	Electrophoretic Deposition Of Cdse Nanoparticles Photoanode For Quantum Dots Sensitized Solar Cells
title_fullStr	Electrophoretic Deposition Of Cdse Nanoparticles Photoanode For Quantum Dots Sensitized Solar Cells
title_full_unstemmed	Electrophoretic Deposition Of Cdse Nanoparticles Photoanode For Quantum Dots Sensitized Solar Cells
title_sort	electrophoretic deposition of cdse nanoparticles photoanode for quantum dots sensitized solar cells
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
publishDate	2019
url	http://eprints.usm.my/46725/1/Electrophoretic%20Deposition%20Of%20Cdse%20Nanoparticles%20Photoanode%20For%20Quantum%20Dots%20Sensitized%20Solar%20Cells.pdf
_version_	1747821717959475200

Electrophoretic Deposition Of Cdse Nanoparticles Photoanode For Quantum Dots Sensitized Solar Cells

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