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Title: Effect of annealing on graphene incorporated poly-(3-hexylthiophene):CuInS{sub 2} photovoltaic device

The effect of thermal annealing on the power conversion efficiency (PCE) of poly(3-hexylthiophene) (P3HT):CuInS{sub 2} quantum dot:graphene photovoltaic device has been studied by analyzing optical characteristics of composite films and electrical characteristics of the device with structure indium tin oxide/poly[ethylene dioxythiophene]:poly[styrene sulfonate] (ITO/PEDOT:PSS)/P3HT:CIS:graphene/LiF/aluminum. It was observed that after annealing at 120°C for 15 min a typical device containing 0.005 % w/w of graphene shows the best performance with a PCE of 1.3%, an open-circuit voltage of 0.44V, a short-circuit current density of 7.6 mA/cm{sup 2}, and a fill factor of 0.39. It is observed that the thermal annealing considerably enhances the efficiency of solar cells. However, an annealing at higher temperature such as at 140°C results in a decrease in the device efficiency.
Authors:
;  [1] ;  [2]
  1. Department of Electronic Science, University of Delhi, South Campus, Benito Juarez Road, New Delhi-110021 (India)
  2. Department of Electronic Science, University of Delhi, South Campus, Benito Juarez Road, New Delhi-110021, India and SGTB Khalsa College, University of Delhi, Delhi-110007 (India)
Publication Date:
OSTI Identifier:
22308017
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1620; Journal Issue: 1; Conference: Optics 14: International conference on optics: Light and its interactions with matter, Calicut, Kerala (India), 19-21 Mar 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM; ANNEALING; COPPER SULFIDES; CURRENT DENSITY; ELECTRIC POTENTIAL; ETHYLENE; FILL FACTORS; GRAPHENE; INDIUM SULFIDES; LITHIUM FLUORIDES; PHOTOVOLTAIC CONVERSION; PHOTOVOLTAIC EFFECT; QUANTUM DOTS; SOLAR CELLS; STYRENE; TEMPERATURE DEPENDENCE; TIN OXIDES