Strain Driven Spectral Broadening of Pb Ion Exchanged CdS Nanowires

Xiaonan Xing; Qi Zhang; Zhen Huang; Zhijuan Lu; Jianbing Zhang; Huiqiao Li; Haibo Zeng; Tianyou Zhai

doi:10.1002/smll.201503044

Strain Driven Spectral Broadening of Pb Ion Exchanged CdS Nanowires

Small. 2016 Feb 17;12(7):874-81. doi: 10.1002/smll.201503044. Epub 2015 Dec 23.

Authors

Xiaonan Xing¹, Qi Zhang¹, Zhen Huang², Zhijuan Lu¹, Jianbing Zhang², Huiqiao Li¹, Haibo Zeng³, Tianyou Zhai¹

Affiliations

¹ State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
² School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China.
³ Institute of Optoelectronics and Nanomaterials, Herbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.

PMID: 26701331
DOI: 10.1002/smll.201503044

Abstract

Broad visible photodetectors based on individual Pb ion exchanged CdS nanowires are reported. They are prepared via an ion exchange reaction initiated on the surface of CdS nanowires with a further diffusion of ionic reactants. The broadening of the response spectrum is relative to electronic band structure transition caused by the tensile strain in the lattice.

Keywords: band gap transitions; ion exchange; photodetectors; visible spectrum broadening.

Publication types

Research Support, Non-U.S. Gov't