Solution processed metal-doped NiS/PEDOT:PSS composite thin films as an efficient electrode for quantum-dot sensitized solar cells

Journal Article · Fri Jun 15 00:00:00 EDT 2018 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2018.03.005· OSTI ID:22804031

Punnoose, Dinah; Rao, S. Srinivasa; Kim, Hee-Je ^[1]

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1. School of Electrical Engineering, Pusan National University, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241 (Korea, Republic of)

Highlights: • Metal-doped NiS/PEDOT:PSS chrysanthemum flower like structure was fabricated. • Deposition of PEDOT: PSS into Cu-NiS enhances the V{sub oc} and PCE. • Introduction of PEDOT: PSS acts as a passivation layer for reducing charge recombination. • Cu-NiS/PEDOT:PSS shows higher onset potential with higher limiting current density. - Abstract: Cu-doped NiS with PEDOT:PSS chrysanthemum flower-like structures, which were composed of many nanopetal bunches in a radial fashion, were synthesized using a modest, eco-friendly and cost effective method. The 5 wt.% Cuph/PEDOT:PSS produced a minute amount of PEDOT:PSS, which exhibiting outstanding electrochemical performance in QDSSCs. The synergetic effects of the composite were investigated and a PCE of 4.87%, fill factor of 0.51, J{sub sc} of 13.75 mA cm{sup −2}, and V{sub oc} of 0.549 V in a polysulfide electrolyte were obtained. The electrode exhibited great electrocatalytic activities and lower charge transfer resistance than that of the bare NiS and Cu-doped NiS, making it a promising material for both fuel cells and QDSSCs. The improved performance of the 5 wt.% Cuph/PEDOT:PSS electrode was attributed mainly to the large surface area, greater electrical conductivity and high electrocatalytic activity.

• OSTI ID: 22804031
• Journal Information: Materials Research Bulletin, Vol. 102; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER
CURRENT DENSITY
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTES
FILL FACTORS
FLOWERS
FUEL CELLS
NICKEL SULFIDES
PASSIVATION
QUANTUM DOTS
RECOMBINATION
REDOX REACTIONS
SOLAR CELLS
SURFACE AREA
THIN FILMS