Cu<inf>2</inf>ZnSnS<inf>4</inf>-Ag<inf>2</inf>S Nanoscale p-n Heterostructures as Sensitizers for Photoelectrochemical Water Splitting

Xuelian Yu; Jingjing Liu; Aziz Genç; Maria Ibáñez; Zhishan Luo; Alexey Shavel; Jordi Arbiol; Guangjin Zhang; Yihe Zhang; Andreu Cabot

doi:https://doi.org/10.1021/acs.langmuir.5b02490

Cu<inf>2</inf>ZnSnS<inf>4</inf>-Ag<inf>2</inf>S Nanoscale p-n Heterostructures as Sensitizers for Photoelectrochemical Water Splitting

Xuelian Yu, Jingjing Liu, Aziz Genç, Maria Ibáñez, Zhishan Luo, Alexey Shavel, Jordi Arbiol, Guangjin Zhang, Yihe Zhang, Andreu Cabot

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

48 Citations (Scopus)

Abstract

© 2015 American Chemical Society. A cation exchange-based route was used to produce Cu2ZnSnS4 (CZTS)-Ag2S nanoparticles with controlled composition. We report a detailed study of the formation of such CZTS-Ag2S nanoheterostructures and of their photocatalytic properties. When compared to pure CZTS, the use of nanoscale p-n heterostructures as light absorbers for photocatalytic water splitting provides superior photocurrents. We associate this experimental fact to a higher separation efficiency of the photogenerated electron-hole pairs. We believe this and other type-II nanoheterostructures will open the door to the use of CZTS, with excellent light absorption properties and made of abundant and environmental friendly elements, to the field of photocatalysis.

Original language	English
Pages (from-to)	10555-10561
Journal	Langmuir
Volume	31
Issue number	38
DOIs	https://doi.org/10.1021/acs.langmuir.5b02490
Publication status	Published - 29 Sept 2015

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title = "Cu2ZnSnS4-Ag2S Nanoscale p-n Heterostructures as Sensitizers for Photoelectrochemical Water Splitting",

abstract = "{\textcopyright} 2015 American Chemical Society. A cation exchange-based route was used to produce Cu2ZnSnS4 (CZTS)-Ag2S nanoparticles with controlled composition. We report a detailed study of the formation of such CZTS-Ag2S nanoheterostructures and of their photocatalytic properties. When compared to pure CZTS, the use of nanoscale p-n heterostructures as light absorbers for photocatalytic water splitting provides superior photocurrents. We associate this experimental fact to a higher separation efficiency of the photogenerated electron-hole pairs. We believe this and other type-II nanoheterostructures will open the door to the use of CZTS, with excellent light absorption properties and made of abundant and environmental friendly elements, to the field of photocatalysis.",

author = "Xuelian Yu and Jingjing Liu and Aziz Gen{\c c} and Maria Ib{\'a}{\~n}ez and Zhishan Luo and Alexey Shavel and Jordi Arbiol and Guangjin Zhang and Yihe Zhang and Andreu Cabot",

year = "2015",

month = sep,

day = "29",

doi = "https://doi.org/10.1021/acs.langmuir.5b02490",

language = "English",

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TY - JOUR

T1 - Cu2ZnSnS4-Ag2S Nanoscale p-n Heterostructures as Sensitizers for Photoelectrochemical Water Splitting

AU - Yu, Xuelian

AU - Liu, Jingjing

AU - Genç, Aziz

AU - Ibáñez, Maria

AU - Luo, Zhishan

AU - Shavel, Alexey

AU - Arbiol, Jordi

AU - Zhang, Guangjin

AU - Zhang, Yihe

AU - Cabot, Andreu

PY - 2015/9/29

Y1 - 2015/9/29

N2 - © 2015 American Chemical Society. A cation exchange-based route was used to produce Cu2ZnSnS4 (CZTS)-Ag2S nanoparticles with controlled composition. We report a detailed study of the formation of such CZTS-Ag2S nanoheterostructures and of their photocatalytic properties. When compared to pure CZTS, the use of nanoscale p-n heterostructures as light absorbers for photocatalytic water splitting provides superior photocurrents. We associate this experimental fact to a higher separation efficiency of the photogenerated electron-hole pairs. We believe this and other type-II nanoheterostructures will open the door to the use of CZTS, with excellent light absorption properties and made of abundant and environmental friendly elements, to the field of photocatalysis.

AB - © 2015 American Chemical Society. A cation exchange-based route was used to produce Cu2ZnSnS4 (CZTS)-Ag2S nanoparticles with controlled composition. We report a detailed study of the formation of such CZTS-Ag2S nanoheterostructures and of their photocatalytic properties. When compared to pure CZTS, the use of nanoscale p-n heterostructures as light absorbers for photocatalytic water splitting provides superior photocurrents. We associate this experimental fact to a higher separation efficiency of the photogenerated electron-hole pairs. We believe this and other type-II nanoheterostructures will open the door to the use of CZTS, with excellent light absorption properties and made of abundant and environmental friendly elements, to the field of photocatalysis.

U2 - https://doi.org/10.1021/acs.langmuir.5b02490

DO - https://doi.org/10.1021/acs.langmuir.5b02490

M3 - Article

SN - 0743-7463

VL - 31

SP - 10555

EP - 10561

JO - Langmuir

JF - Langmuir

IS - 38

ER -

Cu<inf>2</inf>ZnSnS<inf>4</inf>-Ag<inf>2</inf>S Nanoscale p-n Heterostructures as Sensitizers for Photoelectrochemical Water Splitting

Abstract

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