Ultrasound effect: Preparation of PbS/TiO2 heterostructure nanotube arrays through successive ionic layer adsorption and the reaction method

被引：23

作者：

Cai, Fang-gong ^{[1
]}

Yang, Feng ^{[1
]}

Xi, Jin-fang ^{[1
]}

Jia, Yong-fang ^{[1
]}

Cheng, Cui-hua ^{[2
]}

Zhao, Yong ^{[1
,2
]}

机构：

[1] Southwest Jiaotong Univ, Superconduct & New Energy R&D Ctr, Key Lab Adv Technol Mat, Minist Educ China, Chengdu 610031, Sichuan, Peoples R China

[2] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

来源：

MATERIALS LETTERS | 2013年 / 107卷

基金：

中国国家自然科学基金;

关键词：

Nanoparticles; Semiconductors; Solar energy materials; Surface photovoltage; TiO2 nanotube arrays; QUANTUM DOTS; NANOPARTICLES; NANORODS;

D O I：

10.1016/j.matlet.2013.05.116

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

PbS-modified TiO2 heterostructure nanotube arrays (NAs) were synthesised by successive ionic layer adsorption and the reaction method. Ultrasound (PbS(u)/TiO2 NAs) has an important function in the formation of PbS nanoparticles. Compared with non-ultrasound PbS/TiO2 NM, PbS(u)/TiO2 NAs have small PbS nanoparticles uniformly distributed on both the outside and inside rather than the top surface of TiO2 NM. The average size of the PbS nanoparticles in PbS(u)/TiO2 NAs ranges from 10 to 15 nm. PbS/TiO2 NM and PbS(u)/TiO2 NAs both exhibit high absorption in the 300-1000 nm region. Moreover, a stronger separate efficiency of photogenerated charge carriers is found in PbS(u)/TiO2 NAs than that in PbS/TiO2 NM. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：39 / 41

页数：3

共 16 条

[1] Electrophoretic deposition and compression of titania nanoparticle films for dye-sensitized solar cells [J].