Premium
Solution‐Processable Pyrite FeS 2 Nanocrystals for the Fabrication of Heterojunction Photodiodes with Visible to NIR Photodetection
Author(s) -
Wang DiYan,
Jiang YouTing,
Lin ChihCheng,
Li ShaoSian,
Wang YawTyng,
Chen ChiaChun,
Chen ChunWei
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201200753
Subject(s) - materials science , photocurrent , photodetection , photodiode , heterojunction , nanocrystal , optoelectronics , fabrication , photodetector , pyrite , nanotechnology , medicine , alternative medicine , pathology , metallurgy
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 ).