Published April 13, 2009 | Version v1
Journal article Metadata-only

An oleic acid-capped CdSe quantum-dot sensitized solar cell

Creators

  • 1. School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798 (Singapore)
  • 2. School of Electronic Science and Engineering, Southeast University, Nanjing 210096 (China)
  • 3. Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Science, Nanyang Technological University, Singapore 637616 (Singapore)
  • 4. Institute of Microelectronics, 11 Science Park Road, Science Park II, Singapore 117685 (Singapore)
  • 5. Department of Chemistry, National Taiwan University, Taipei 106, Taiwan (China)

Description

In this letter, we report an oleic acid (OA)-capped CdSe quantum-dot sensitized solar cell (QDSSC) with an improved performance. The TiO2/OA-CdSe photoanode in a two-electrode device exhibited a photon-to-current conversion efficiency of 17.5% at 400 nm. At AM1.5G irradiation with 100 mW/cm2 light intensity, the QDSSCs based on OA-capped CdSe showed a power conversion efficiency of about 1%. The function of OA was to increase QD loading, extend the absorption range and possibly suppress the surface recombination.

Additional details

Identifiers

DOI
10.1063/1.3117221;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
94
Journal Issue
15
Journal Page Range
p. 153115-153115.3
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41056922
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ABSORPTION; CADMIUM SELENIDES; ELECTRODES; OLEIC ACID; PHOTONS; QUANTUM DOTS; RECOMBINATION; SEMICONDUCTOR MATERIALS; SOLAR CELLS; TITANIUM OXIDES
Descriptors DEC
BOSONS; CADMIUM COMPOUNDS; CARBOXYLIC ACIDS; CHALCOGENIDES; DIRECT ENERGY CONVERTERS; ELEMENTARY PARTICLES; EQUIPMENT; MASSLESS PARTICLES; MATERIALS; MONOCARBOXYLIC ACIDS; NANOSTRUCTURES; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHOTOELECTRIC CELLS; PHOTOVOLTAIC CELLS; SELENIDES; SELENIUM COMPOUNDS; SOLAR EQUIPMENT; SORPTION; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
(c) 2009 American Institute of Physics