Solution-processable pyrite FeS 2 nanocrystals for the fabrication of heterojunction photodiodes with visible to NIR photodetection

Di Yan Wang; You Ting Jiang; Chih Cheng Lin; Shao Sian Li; Yaw Tyng Wang; Chia Chun Chen; Chun Wei Chen

doi:10.1002/adma.201200753

Solution-processable pyrite FeS ₂ nanocrystals for the fabrication of heterojunction photodiodes with visible to NIR photodetection

Di Yan Wang, You Ting Jiang, Chih Cheng Lin, Shao Sian Li, Yaw Tyng Wang, Chia Chun Chen, Chun Wei Chen

Research output: Contribution to journal › Article › peer-review

111 Citations (Scopus)

Abstract

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).

Original language	English
Pages (from-to)	3415-3420
Number of pages	6
Journal	Advanced Materials
Volume	24
Issue number	25
DOIs	https://doi.org/10.1002/adma.201200753
Publication status	Published - Jul 3 2012
Externally published	Yes

Keywords

FeS nanocrystals
iron pyrite
photodetection
photodiodes
solution-processable

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1002/adma.201200753

Cite this

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title = "Solution-processable pyrite FeS 2 nanocrystals for the fabrication of heterojunction photodiodes with visible to NIR photodetection",

abstract = "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).",

keywords = "FeS nanocrystals, iron pyrite, photodetection, photodiodes, solution-processable",

author = "Wang, {Di Yan} and Jiang, {You Ting} and Lin, {Chih Cheng} and Li, {Shao Sian} and Wang, {Yaw Tyng} and Chen, {Chia Chun} and Chen, {Chun Wei}",

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AU - Wang, Di Yan

AU - Jiang, You Ting

AU - Lin, Chih Cheng

AU - Li, Shao Sian

AU - Wang, Yaw Tyng

AU - Chen, Chia Chun

AU - Chen, Chun Wei

PY - 2012/7/3

Y1 - 2012/7/3

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AB - 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).

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