Enhanced Photoresponse of FeS2 Films: The Role of Marcasite–Pyrite Phase Junctions

Longfei Wu; N.Y. Dzade; L. Gao; D. O.  Scanlon; Zafer Özturk; N.  Hollingsworth; B.M. Weckhuysen; E. J. M.  Hensen; Nora H. de Leeuw; J. P.  Hofmann

doi:10.1002/adma.201602222

Enhanced Photoresponse of FeS₂ Films: The Role of Marcasite–Pyrite Phase Junctions

Longfei Wu, N.Y. Dzade, L. Gao, D. O. Scanlon, Zafer Özturk, N. Hollingsworth, B.M. Weckhuysen, E. J. M. Hensen, Nora H. de Leeuw, J. P. Hofmann

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

Abstract

The beneficial role of marcasite in iron sulfide-based photo-electrochemical applications is reported for the first time. A spectacular improvement of the photoresponse observed experimentally for mixed pyrite/marcasite-FeS₂ films can be ascribed to the presence of p/m phase junctions at the interface. Density functional theory calculations show that the band alignment at the phase boundary contributes to enhanced charge separation and transfer across the interface.

Original language	English
Pages (from-to)	9602-9607
Journal	Advanced Materials
Volume	28
Issue number	43
DOIs	https://doi.org/10.1002/adma.201602222
Publication status	Published - 16 Nov 2016

Keywords

Photovoltaic
Solar Cells
Iron pyrite

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/adma.201602222

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Cite this

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title = "Enhanced Photoresponse of FeS2 Films: The Role of Marcasite–Pyrite Phase Junctions",

abstract = "The beneficial role of marcasite in iron sulfide-based photo-electrochemical applications is reported for the first time. A spectacular improvement of the photoresponse observed experimentally for mixed pyrite/marcasite-FeS2 films can be ascribed to the presence of p/m phase junctions at the interface. Density functional theory calculations show that the band alignment at the phase boundary contributes to enhanced charge separation and transfer across the interface.",

keywords = "Photovoltaic, Solar Cells, Iron pyrite",

author = "Longfei Wu and N.Y. Dzade and L. Gao and Scanlon, \{D. O.\} and Zafer {\"O}zturk and N. Hollingsworth and B.M. Weckhuysen and Hensen, \{E. J. M.\} and \{de Leeuw\}, \{Nora H.\} and Hofmann, \{J. P.\}",

year = "2016",

month = nov,

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language = "English",

volume = "28",

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T1 - Enhanced Photoresponse of FeS2 Films

T2 - The Role of Marcasite–Pyrite Phase Junctions

AU - Wu, Longfei

AU - Dzade, N.Y.

AU - Gao, L.

AU - Scanlon, D. O.

AU - Özturk, Zafer

AU - Hollingsworth, N.

AU - Weckhuysen, B.M.

AU - Hensen, E. J. M.

AU - de Leeuw, Nora H.

AU - Hofmann , J. P.

PY - 2016/11/16

Y1 - 2016/11/16

N2 - The beneficial role of marcasite in iron sulfide-based photo-electrochemical applications is reported for the first time. A spectacular improvement of the photoresponse observed experimentally for mixed pyrite/marcasite-FeS2 films can be ascribed to the presence of p/m phase junctions at the interface. Density functional theory calculations show that the band alignment at the phase boundary contributes to enhanced charge separation and transfer across the interface.

AB - The beneficial role of marcasite in iron sulfide-based photo-electrochemical applications is reported for the first time. A spectacular improvement of the photoresponse observed experimentally for mixed pyrite/marcasite-FeS2 films can be ascribed to the presence of p/m phase junctions at the interface. Density functional theory calculations show that the band alignment at the phase boundary contributes to enhanced charge separation and transfer across the interface.

KW - Photovoltaic

KW - Solar Cells

KW - Iron pyrite

U2 - 10.1002/adma.201602222

DO - 10.1002/adma.201602222

M3 - Article

SN - 0935-9648

VL - 28

SP - 9602

EP - 9607

JO - Advanced Materials

JF - Advanced Materials

IS - 43

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