Iron Pyrite/Titanium Dioxide Photoanode for Extended Near Infrared Light Harvesting in a Photoelectrochemical Cell

Di Yan Wang, Cheng Hung Li, Shao Sian Li, Tsung Rong Kuo, Chin Ming Tsai, Tin Reui Chen, Ying Chiao Wang, Chun Wei Chen, Chia Chun Chen

研究成果: 雜誌貢獻文章

11 引文 (Scopus)

摘要

The design of active and stable semiconducting composites with enhanced photoresponse from visible light to near infrared (NIR) is a key to improve solar energy harvesting for photolysis of water in photoelectrochemical cell. In this study, we prepared earth abundant semiconducting composites consisting of iron pyrite and Titanium oxide as a photoanode (FeS 2/TiO 2 photoanode) for photoelectrochemical applications. The detailed structure and atomic compositions of FeS 2/TiO 2 photoanode was characterized by high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDS), powder X-ray diffraction (XRD), inductively coupled plasma with atomic emission spectroscopy (ICPAES) and Raman spectroscopy. Through the proper sulfurization treatment, the FeS 2/TiO 2 photoanode exhibited high photoresponse from visible light extended to near infrared range (900 nm) as well as stable durability test for 4 hours. We found that the critical factors to enhance the photoresponse are on the elimination of surface defect of FeS 2 and on the enhancement of interface charge transfer between FeS 2 and TiO 2. Our overall results open a route for the design of sulfur-based binary compounds for photoelectrochemical applications.
原文英語
文章編號20397
期刊Scientific Reports
6
DOIs
出版狀態已發佈 - 二月 8 2016
對外發佈Yes

指紋

Photoelectrochemical cells
Pyrites
Atomic emission spectroscopy
Infrared radiation
Energy harvesting
Surface defects
Photolysis
Composite materials
Inductively coupled plasma
High resolution transmission electron microscopy
Sulfur
X ray powder diffraction
Solar energy
Raman spectroscopy
Charge transfer
Energy dispersive spectroscopy
Durability
Earth (planet)
Water
Chemical analysis

ASJC Scopus subject areas

  • General

引用此文

Iron Pyrite/Titanium Dioxide Photoanode for Extended Near Infrared Light Harvesting in a Photoelectrochemical Cell. / Wang, Di Yan; Li, Cheng Hung; Li, Shao Sian; Kuo, Tsung Rong; Tsai, Chin Ming; Chen, Tin Reui; Wang, Ying Chiao; Chen, Chun Wei; Chen, Chia Chun.

於: Scientific Reports, 卷 6, 20397, 08.02.2016.

研究成果: 雜誌貢獻文章

Wang, Di Yan ; Li, Cheng Hung ; Li, Shao Sian ; Kuo, Tsung Rong ; Tsai, Chin Ming ; Chen, Tin Reui ; Wang, Ying Chiao ; Chen, Chun Wei ; Chen, Chia Chun. / Iron Pyrite/Titanium Dioxide Photoanode for Extended Near Infrared Light Harvesting in a Photoelectrochemical Cell. 於: Scientific Reports. 2016 ; 卷 6.
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