可溶液加工的黄铁矿 FeS2 纳米晶体用于制造具有可见到近红外光探测性能的异质结光电二极管。
Solution-processable pyrite FeS(2) nanocrystals for the fabrication of heterojunction photodiodes with visible to NIR photodetection.
机构信息
Department of Materials Science and Engineering, National Taiwan University, Taipei, 106, Taiwan.
出版信息
Adv Mater. 2012 Jul 3;24(25):3415-20. doi: 10.1002/adma.201200753. Epub 2012 Jun 5.
A heterojunction photodiode with NIR photoresponse using solution processable pyrite FeS(2) nanocrystal ink is demonstrated which has the advantages of earth-abundance and non-toxicity. The device consists of a FeS(2) nanocrystal (NC) thin film sandwiched with semiconducting metal oxides with a structure of ITO/ZnO/FeS(2) NC/MoO(3) /Au, which exhibits an excellent photoresponse with a spectral response extended to NIR wavelengths of up to 1150 nm and a high photocurrent/dark current ratio of up to 8000 at -1 V under AM1.5 illumination (100 mW cm(-2) ).
采用溶液处理的黄铁矿 FeS(2) 纳米晶油墨制作的具有近红外光响应的异质结光电二极管，具有丰富的地球储量和无毒的优点。该器件由夹在半导体金属氧化物之间的 FeS(2) 纳米晶 (NC) 薄膜组成，结构为 ITO/ZnO/FeS(2) NC/MoO(3)/Au，在 AM1.5 照明（100 mW cm(-2)）下，光谱响应扩展至近红外波长高达 1150nm，光电流/暗电流比高达 8000，表现出优异的光响应。
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