期刊
NANOTECHNOLOGY
卷 22, 期 39, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/22/39/395502
关键词
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资金
- Global Research Laboratory (GRL) Program through the National Research Foundation of Korea
- Ministry of Education, Science and Technology
- Fundamental R&D Program for Core Technology of Materials
- Ministry of Knowledge Economy
- Korea Research Institute of Chemical Technology (KRICT), Republic of Korea
A PbS-sensitized photovoltaic photodetector responsive to near-infrared (NIR) light was fabricated by depositing monolayered PbS nanoparticles on a mesoporous TiO2 (mp-TiO2) film via the spin-assisted successive ionic layer adsorption and reaction (SILAR) method. By adjusting the size and morphology of the PbS nanoparticles through repeated spin-assisted SILAR cycles, the PbS-sensitized photovoltaic photodetector achieved an external quantum efficiency of 9.3% at 1140 nm wavelength and could process signals up to 1 kHz.
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