Published July 7, 2014 | Version v1
Journal article Metadata-only

Enhanced open voltage of BiFeO3 polycrystalline film by surface modification of organolead halide perovskite

Creators

  • 1. University of Chinese Academy of Sciences, Beijing 100049 (China)
  • 2. Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011 (China)
  • 3. Department of Research and Development, Shanghai Shanshan Tech. Co., Ltd., Shanghai 201209, China and Department of Chemistry, Zhejiang University, Hangzhou 310027 (China)

Description

Inorganic-organolead halide perovskite CH3NH3PbI3 modified BiFeO3 polycrystalline film has been established. The composite photoelectrode presents much larger open voltage and several magnitudes superior photoelectric conversion performance in comparison to the ordinary BiFeO3 polycrystalline film. The I-V curve shows that the short-circuit current (Jsc) is 1.74 mA·cm−2 and open-circuit voltage (Voc) is 1.62 V, the device's photon to current efficiency is over 1%. The large open voltage and high photovoltaic efficiency is believed to attributed to the spontaneous polarization of composite perovskite induced by BiFeO3 lattice and modified reduced work function of the modified BiFeO3 surface. Our results clearly show that the present BiFeO3-CH3NH3PbI3 planar device is capable to generate a large voltage in macro scale under visible light, leading an approach to further applications on photodetectors and optoelectronic switch.

Additional details

Identifiers

DOI
10.1063/1.4888912;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
105
Journal Issue
1
Journal Page Range
p. 013901-013901.5
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46010140
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
BISMUTH COMPOUNDS; CONVERSION; CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRIC POTENTIAL; FERRITES; FILMS; HALIDES; MODIFICATIONS; PEROVSKITE; PHOTODETECTORS; PHOTONS; PHOTOVOLTAIC EFFECT; POLARIZATION; POLYCRYSTALS; SURFACES; SWITCHES; VISIBLE RADIATION; WORK FUNCTIONS
Descriptors DEC
BOSONS; CRYSTALS; ELECTRICAL EQUIPMENT; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; EQUIPMENT; FERRIMAGNETIC MATERIALS; FUNCTIONS; HALOGEN COMPOUNDS; IRON COMPOUNDS; MAGNETIC MATERIALS; MASSLESS PARTICLES; MATERIALS; MINERALS; OXIDE MINERALS; OXYGEN COMPOUNDS; PEROVSKITES; PHOTOELECTRIC EFFECT; PHYSICAL PROPERTIES; RADIATIONS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
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