NDLI: Structural and electrical characterizations of ZnO:In/PS/Si heterojunction deposited by rf-magnetron sputtering

Content Provider	Springer Nature Link
Author	Belaid, H. uiri, M. Sayari, A. Ben Ayadi, Z. Djessas, K. Mir, L.
Copyright Year	2015
Abstract	Indium doped zinc oxide (IZO) thin film has been deposited on p-type porous silicon (PS) substrate by rf-magnetron sputtering of IZO aerogel nanoparticles at room temperature to obtain n-IZO/PS/p-Si heterojunction diode. The obtained IZO film, with a thickness of about 400 nm using indium concentration of 4 at.%, was polycrystalline with a hexagonal wurtzite structure and preferentially orientation in the (002) crystallographic direction. Atomic force microscopy (AFM) micrograph shows that IZO film has a typical columnar structure and a very smooth surface. The heterojunction parameters were evaluated from the current-voltage (I-V) characteristics carried out in the temperature range 80–300 K and capacitance-voltage (C-V) measurements. The ideality factor and barrier height of the heterojunction exhibited strong temperature dependence. The electrical measurements show that the n-IZO/PS/p-Si heterojunction has a Schottky electronic behavior where the depletion-layer is developed principally in the p-type silicon substrate. The tunneling mechanism via deep-level states was the main conduction process at low forward bias, while space-charge-limited current conduction dominated the carrier transport at higher bias. The I-V characteristics under illumination show that the p-n junction exhibits a photovoltaic behavior and is promising for photovoltaic application.
Starting Page	141
Ending Page	147
Page Count	7
File Format	PDF
ISSN	13853449
Journal	Journal of Electroceramics
Volume Number	35
Issue Number	1-4
e-ISSN	15738663
Language	English
Publisher	Springer US
Publisher Date	2015-11-09
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nanostructure ZnO:In Porous silicon Solar cell Sol-gel Sputtering Optical and Electronic Materials Ceramics, Glass, Composites, Natural Methods Characterization and Evaluation of Materials Electrochemistry Crystallography
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Materials Chemistry Mechanics of Materials Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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