Published August 4, 2014 | Version v1
Journal article Metadata-only

The action mechanism of TiO2:NaYF4:Yb3+,Tm3+ cathode buffer layer in highly efficient inverted organic solar cells

Creators

  • 1. State Key Laboratory on Integrated Optoelectronics, Jilin University, 2699 Qianjin Street, Changchun 130012 (China)
  • 2. College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012 (China)

Description

We report the fabrication and characteristics of organic solar cells with 6.86% power conversion efficiency (PCE) by doping NaYF4:Yb3+,Tm3+ into TiO2 cathode buffer layer. The dependence of devices performance on doping concentration of NaYF4:Yb3+,Tm3+ is investigated. Results indicate that short-circuit current density (Jsc) has an apparent improvement, leading to an enhancement of 22.7% in PCE for the optimized doping concentration of 0.05 mmol ml−1 compared to the control devices. NaYF4:Yb3+,Tm3+ nanoparticles (NPs) can play threefold roles, one is that the incident light in visible region can be scattered by NaYF4 NPs, the second is that solar irradiation in infrared region can be better utilized by Up-conversion effect of Yb3+ and Tm3+ ions, the third is that electron transport property in TiO2 thin film can be greatly improved

Additional details

Identifiers

DOI
10.1063/1.4892472;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
105
Journal Issue
5
Journal Page Range
p. 053301-053301.4
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46020712
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CATHODES; LAYERS; NANOPARTICLES; ORGANIC SOLAR CELLS; SODIUM COMPOUNDS; THULIUM IONS; TITANIUM OXIDES; YTTERBIUM IONS; YTTRIUM FLUORIDES
Descriptors DEC
ALKALI METAL COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; DIRECT ENERGY CONVERTERS; ELECTRODES; EQUIPMENT; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; IONS; OXIDES; OXYGEN COMPOUNDS; PARTICLES; PHOTOELECTRIC CELLS; PHOTOVOLTAIC CELLS; SOLAR CELLS; SOLAR EQUIPMENT; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; YTTRIUM HALIDES

Optional Information

Notes
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