Effect of transport layer on polymer - fullerene derivative bulk heterojunction organic photovoltaic cell performance using transmission circuit model analysis
Journal
International Journal of Nanoelectronics and Materials (IJNeaM)
ISSN
1985-5761
Date Issued
2021-07
Author(s)
K. L. Usha Kumary
LBS Centre For Science & Technology
M. Pratheek
National Institute of Technology, Calicut, Kerala
A. Ashfak
TKM College of Engineering, Kollam, Kerala
T. A. Shahul Hameed
TKM College of Engineering, Kollam, Kerala
P. Predeep
National Institute of Technology, Calicut, Kerala
Handle (URI)
Abstract
Polymer-fullerene derivative bulk heterojunction (BHJ) organic photovoltaic cell (OPV) is one of the encouraging devices to harvest solar energy where transport layers carry the momentous role in performance and stability. In this work, the effect of C60 as an electron transport layer in a BHJ device composed of Poly(3-hexylthiophene-2,5-diyl) (P3HT) and [6,6]-Phenyl-C61-butyric acid methyl ester (PCBM) is investigated by impedance spectroscopy (IS) and modelled using circuit models – the transmission circuit (TC) model and electrochemical polarization model. The effective lifetime and mobility of carriers were also extracted. It is seen that the fullerene C60 transport layer effectively reduces bulk resistance with biasing voltage.
Subjects
File(s)