NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.49 [2011] >
IJPAP Vol.49(07) [July 2011] >


Title: Charge generation and photovoltaic properties of thin film device based on pyronine G:zinc oxide composite
Authors: Rajkumar
Sharma, G D
Roy, M S
Keywords: Photo-induced charge transfer
Bulk heterojunction
Photovoltaic effect
Fluorescence
Quenching
Issue Date: Jul-2011
Publisher: NISCAIR-CSIR, India
Abstract: The electrical and photoelectrical properties of thin film hybrid blend device consisting of nanocrystalline inorganic semiconductor zinc oxide (ZnO) and pyronine G (PYR G) (an organic p-type semiconductor) have been studied through recorded fluorescence (FL) spectra, current-voltage characteristics (in dark and under illumination) and photo-action spectra of device. The quenching of FL spectra of PYR G when mixed with ZnO has been interpreted in terms of efficient electron transfer between PYR G (donor) and ZnO (acceptor) on photoexcitation. The observed results justify the formation of bulk heterojunction between PYR G and ZnO, sandwiched between Al and ITO electrodes. The nearly linear dependence of photocurrent with incident light intensity suggests the efficient photo-induced charge-transfer in the device consisting of PYR G:ZnO restricting charge recombination comparatively to device based on pure PYR G. The absorption spectra of the blend suggest the formation of hetero-junction and there is no ground state doping.
Page(s): 489-493
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.49(07) [July 2011]

Files in This Item:

File Description SizeFormat
IJPAP 49(7) 489-493.pdf114.67 kBAdobe PDFView/Open
 Current Page Visits: 628 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 603439 since 06-Feb-2009  Last updated on 21-Oct-2014Webmaster: nopr@niscair.res.in