Document Details

Document Type : Article In Journal 
Document Title :
Synthesis and properties of bismuth oxide nanoshell coated polyaniline nanoparticles for promising photovoltaic properties
Synthesis and properties of bismuth oxide nanoshell coated polyaniline nanoparticles for promising photovoltaic properties
 
Subject : Physics 
Document Language : English 
Abstract : A novel heterostructure made of polyaniline (PANI) nanoparticles coated by nanolayer of bismuth oxide Bi2O3 was synthesized. The structure was characterized by scanning electron microscopy, X-ray diffraction, and transmission electron microscopy. These characterizations showed that the bismuth oxide nanoshell was pure and crystalline, and has thickness in the range of 10nm. The experiment on photoluminescence (PL) of Bi2O3 nanoshell coated polyaniline nanoparticle, at room temperature, shows an emission band peaked at around 385nm. When compared with the PL spectrum of Bi2O3 nanoparticles, about 100 times PL enhancement was found in the PL spectrum of Bi2O3 nanoshell coated polyaniline nanoparticle. The current density versus voltage (J-V) measurements in dark and illumination showed that this heterojunction has 4 orders of magnitude rectification in the dark and 3 orders of magnitude rectification under illumination. The obtained power conversion efficiency of polyaniline nanoparticles coated by nanoshell of bismuth oxide (η=7.453%) was much enhanced compared with polyaniline alone (η=8.33×10-4%) this indicates that the prepared heterostructure represents a promising photovoltaic solar cell. 
ISSN : 1042-7147 
Journal Name : Polymers for Advanced Technologies 
Volume : 22 
Issue Number : 6 
Publishing Year : 1432 AH
2011 AD 
Article Type : Article 
Added Date : Sunday, February 5, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
وليد السيد محمودMahmoud, Waleed EResearcherDoctoratew_e_mahmoud@yahoo.com
أحمد عبدالله الغامديAl-Ghamdi, Ahmad AResearcherDoctorateAGAMDI@kau.edu.sa

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