Current-voltage analysis of annealing effects of poly(3-hexlythiophene) and phenyl-C61-butyric acid methyl ester organic solar cells

Roy E. Murray; Nopporn Rujisamphan; Salamat Ali; Steven G. Hegedus; Syed I. Shah

doi:10.1117/1.JPE.3.032098

29 October 2013 Current-voltage analysis of annealing effects of poly(3-hexlythiophene) and phenyl-C61-butyric acid methyl ester organic solar cells

Roy E. Murray, Nopporn Rujisamphan, Salamat Ali, Steven G. Hegedus, Syed I. Shah

Author Affiliations +

Journal of Photonics for Energy, Vol. 3, Issue 1, 032098 (October 2013). https://doi.org/10.1117/1.JPE.3.032098

Abstract

The field of organic photovoltaics (OPV) has progressed rapidly. With new materials and methods being briskly developed, the characterization of OPV also needs to be updated. Current-voltage (JV) analysis of poly(3-hexlythiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) OPV devices yield valuable insight into the internal physics of devices. A simple lumped circuit model, previously used to analyze various inorganic thin-film PV and more recently applied to OPV, has been used to study annealing parameters. To investigate the change in the lumped circuit model parameters, we carried out an annealing study of P3HT:PCBM blend OPV devices. We annealed devices at various temperatures and before and after evaporating the contact. We characterized and quantified the effect of thermal annealing by studying how the model parameters changed. We found that all parameters studied reacted favorably to annealing, including device resistances and parameters measuring recombination. While studying the resistances in unannealed and annealed devices, a barrier was found around the flat band voltage. This barrier disappeared upon annealing, indicating that it was due to material characteristics related to the crystallinity or the phase separation. The data were used to better characterize annealing effects.

Citation Download Citation

Roy E. Murray, Nopporn Rujisamphan, Salamat Ali, Steven G. Hegedus, and Syed I. Shah "Current-voltage analysis of annealing effects of poly(3-hexlythiophene) and phenyl-C61-butyric acid methyl ester organic solar cells," Journal of Photonics for Energy 3(1), 032098 (29 October 2013). https://doi.org/10.1117/1.JPE.3.032098

Published: 29 October 2013

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available