Zinc based semiconductors / polymer thin films junction for photovoltaic application

Thin films of ZnO and ZnTe semiconductors were deposited on ITO conducting glass substrates by sputtering and electrodeposition techniques respectively. On the other hand thin films of ion conducting solid polymer electrolyte were prepared by solution cast technique. The polymer is a blend of 50 wt%...

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Main Authors:	Mohamad, Souad A., Buhari, K. A., Latiff, M. I.
Format:	Article
Language:	English
Published:	Hindawi Publishing Corporation 2012
Subjects:	TK2896 Production of electricity by direct energy conversion
Online Access:	http://irep.iium.edu.my/23826/ http://irep.iium.edu.my/23826/ http://irep.iium.edu.my/23826/ http://irep.iium.edu.my/23826/1/Zinc_Based_Semiconductors_Polymer_Thin_Films_Junction_for.pdf

id	iium-23826
recordtype	eprints
spelling	iium-238262014-07-21T07:48:22Z http://irep.iium.edu.my/23826/ Zinc based semiconductors / polymer thin films junction for photovoltaic application Mohamad, Souad A. Buhari, K. A. Latiff, M. I. TK2896 Production of electricity by direct energy conversion Thin films of ZnO and ZnTe semiconductors were deposited on ITO conducting glass substrates by sputtering and electrodeposition techniques respectively. On the other hand thin films of ion conducting solid polymer electrolyte were prepared by solution cast technique. The polymer is a blend of 50 wt% polyethylene oxide and 50wt% chitosan. To provide redox couple (I- / I3-), the polymer was complexed with ammonium iodide NH4I with addition of few crystals of iodine I2. Ammonium iodide NH4I was added to the solution in different amounts (wt %) weight ratios to supply the charge carriers for the polymer electrolytes. The highest ionic conductivity of the polymer electrolyte was 1.18 x 10-5 S cm-1 at room temperature. Structural and optical properties of the semiconductor thin films were characterized by x-ray diffractometer and UV-VIS spectrophotometer. The XRD shows crystalline structures for both, ZnO and ZnTe Thin films. The UV-VIS shows direct energy gaps EZnO of 3.1 eV and EZnTe of 2.2 eV. The polymer film was sandwiched between the ZnO and ZnTe semiconductors to form ITO/ZnO/polymer/ZnTe/ITO double junction photovoltaic cell and the photovoltaic properties studied. The highest open-circuit voltage Voc, short-circuit current density Jsc and fill factor FF of the fabricated cells are 0.5 V, 55 A cm-2 and 27% respectively. Hindawi Publishing Corporation 2012 Article PeerReviewed application/pdf en http://irep.iium.edu.my/23826/1/Zinc_Based_Semiconductors_Polymer_Thin_Films_Junction_for.pdf Mohamad, Souad A. and Buhari, K. A. and Latiff, M. I. (2012) Zinc based semiconductors / polymer thin films junction for photovoltaic application. International Journal of Photoenergy, 2012. pp. 1-5. ISSN 1687-529X http://www.hindawi.com/journals/ijp/2012/748383/ 10.1155/2012/748383
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TK2896 Production of electricity by direct energy conversion
spellingShingle	TK2896 Production of electricity by direct energy conversion Mohamad, Souad A. Buhari, K. A. Latiff, M. I. Zinc based semiconductors / polymer thin films junction for photovoltaic application
description	Thin films of ZnO and ZnTe semiconductors were deposited on ITO conducting glass substrates by sputtering and electrodeposition techniques respectively. On the other hand thin films of ion conducting solid polymer electrolyte were prepared by solution cast technique. The polymer is a blend of 50 wt% polyethylene oxide and 50wt% chitosan. To provide redox couple (I- / I3-), the polymer was complexed with ammonium iodide NH4I with addition of few crystals of iodine I2. Ammonium iodide NH4I was added to the solution in different amounts (wt %) weight ratios to supply the charge carriers for the polymer electrolytes. The highest ionic conductivity of the polymer electrolyte was 1.18 x 10-5 S cm-1 at room temperature. Structural and optical properties of the semiconductor thin films were characterized by x-ray diffractometer and UV-VIS spectrophotometer. The XRD shows crystalline structures for both, ZnO and ZnTe Thin films. The UV-VIS shows direct energy gaps EZnO of 3.1 eV and EZnTe of 2.2 eV. The polymer film was sandwiched between the ZnO and ZnTe semiconductors to form ITO/ZnO/polymer/ZnTe/ITO double junction photovoltaic cell and the photovoltaic properties studied. The highest open-circuit voltage Voc, short-circuit current density Jsc and fill factor FF of the fabricated cells are 0.5 V, 55 A cm-2 and 27% respectively.
format	Article
author	Mohamad, Souad A. Buhari, K. A. Latiff, M. I.
author_facet	Mohamad, Souad A. Buhari, K. A. Latiff, M. I.
author_sort	Mohamad, Souad A.
title	Zinc based semiconductors / polymer thin films junction for photovoltaic application
title_short	Zinc based semiconductors / polymer thin films junction for photovoltaic application
title_full	Zinc based semiconductors / polymer thin films junction for photovoltaic application
title_fullStr	Zinc based semiconductors / polymer thin films junction for photovoltaic application
title_full_unstemmed	Zinc based semiconductors / polymer thin films junction for photovoltaic application
title_sort	zinc based semiconductors / polymer thin films junction for photovoltaic application
publisher	Hindawi Publishing Corporation
publishDate	2012
url	http://irep.iium.edu.my/23826/ http://irep.iium.edu.my/23826/ http://irep.iium.edu.my/23826/ http://irep.iium.edu.my/23826/1/Zinc_Based_Semiconductors_Polymer_Thin_Films_Junction_for.pdf
first_indexed	2023-09-18T20:35:58Z
last_indexed	2023-09-18T20:35:58Z
_version_	1777409047937417216

Zinc based semiconductors / polymer thin films junction for photovoltaic application

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