Improving the efficiency of a poly(3-hexylthiophene)-CuInS2 photovoltaic device by incorporating graphene nanopowder

Anita Kumari; Inderpreet Singh; Neetu Prasad; Shiv K. Dixit; Peta K. Rao; Pramod K. Bhatnagar; Parmatma C. Mathur; Charanjit S. Bhatia; Swati Nagpal

doi:10.1117/1.JNP.8.083092

26 March 2014 Improving the efficiency of a poly(3-hexylthiophene)-CuInS2 photovoltaic device by incorporating graphene nanopowder

Anita Kumari, Inderpreet Singh, Neetu Prasad, Shiv K. Dixit, Peta K. Rao, Pramod K. Bhatnagar, Parmatma C. Mathur, Charanjit S. Bhatia, Swati Nagpal

Author Affiliations +

Journal of Nanophotonics, Vol. 8, Issue 1, 083092 (March 2014). https://doi.org/10.1117/1.JNP.8.083092

Abstract

In the present work, the effect of incorporation of graphene on the poly(3-hexylthiophene) (P3HT):CuInS ₂ quantum dot (CIS QD)-based solar cell has been studied. For this purpose, the concentration of graphene is varied from 0 to 0.01% w/w in P3HT–CIS (1:0.5) film. It is found that graphene does not deteriorate the absorption of the composite film. It assists in dissociating the photogenerated excitons (both in P3HT and QDs) owing to its two-dimensional structure and high electron affinity as is evident by photoluminescence (PL) quenching. At 0.01% w/w concentration of graphene about ∼95% of PL is quenched. The electrical characteristics show that the incorporation of graphene enhances the efficiency of the device by establishing interconnected conducting pathways in the volume of polymer matrix. The maximum efficiency is observed to be 1.5% at 0.005% w/w content of graphene. However, at higher concentration, i.e., 0.01% w/w, the device starts deteriorating.

Citation Download Citation

Anita Kumari, Inderpreet Singh, Neetu Prasad, Shiv K. Dixit, Peta K. Rao, Pramod K. Bhatnagar, Parmatma C. Mathur, Charanjit S. Bhatia, and Swati Nagpal "Improving the efficiency of a poly(3-hexylthiophene)-CuInS2 photovoltaic device by incorporating graphene nanopowder," Journal of Nanophotonics 8(1), 083092 (26 March 2014). https://doi.org/10.1117/1.JNP.8.083092

Published: 26 March 2014

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