异形复层结构TiO<sub>2</sub>纳米棒薄膜的水热合成及性能

引用本文: 庄稼, 秦海洋, 李林峰, 周莹, 贾春阳, 万中全, 曾宪光. 异形复层结构TiO₂纳米棒薄膜的水热合成及性能[J]. 无机化学学报, 2013, 29(5): 1057-1064. doi: 10.3969/j.issn.1001-4861.2013.00.179 shu

Citation: ZHUANG Jia, QIN Hai-Yang, LI Lin-Feng, ZHOU Ying, JIA Chun-Yang, WAN Zhong-Quan, ZENG Xian-Guang. Hydrothermal Synthesis of a Dysmorphic Double Layer Structure TiO₂ Nanorod Films and Its Properties[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(5): 1057-1064. doi: 10.3969/j.issn.1001-4861.2013.00.179 shu

异形复层结构TiO₂纳米棒薄膜的水热合成及性能

庄稼 ^1, ,
秦海洋 ^{1,
,} ,
李林峰 ^1, ,
周莹 ^1, ,
贾春阳 ^2, ,
万中全 ^2, ,
曾宪光 ^1,3,

通讯作者: 秦海洋,E-mail:594258299@qq.com;Telephone:+862883037862

基金项目:
国家自然科学基金(No.51102245) (No.51102245)

四川省材料腐蚀与防护重点实验室课题(No.2012CL04)资助项目。 (No.2012CL04)

摘要: 本文采用水热反应法,通过改变合成条件,经XRD和FESEM表征,证实合成了四方金红石相异形复层(阵列-团簇)结构的TiO₂薄膜。合成薄膜的下层是TiO₂的阵列,上层是团簇状的TiO₂,并且构成阵列和团簇的每个方柱又由多根纳米棒(25～65 nm)组成。上层团簇的生成量和厚度可以通过改变反应物的初始浓度、反应时间和生长基片的角度进行调控。将这种异形复层结构薄膜试用于染料敏化太阳能电池(DSSC)光阳极,发现其光电转化效率比单层阵列TiO₂薄膜提高了2.6倍。由此表明TiO₂这种以纳米棒为单元结构的异形复层薄膜,上层团簇结构有利于产生采光作用以及吸附微粒的作用,下层阵列结构有利于载流子的定向快速传输,其复合结构的形成,致使光电转换效果明显提高。

关键词:

水热法;纳米棒薄膜;TiO₂;阵列-团簇结构;光电转换效率

English

Hydrothermal Synthesis of a Dysmorphic Double Layer Structure TiO₂ Nanorod Films and Its Properties

1.
1. School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China;

Corresponding author: 秦海洋,E-mail:594258299@qq.com;Telephone:+862883037862

Received Date: 13 December 2012
Fund Project:
国家自然科学基金(No.51102245)

四川省材料腐蚀与防护重点实验室课题(No.2012CL04)资助项目。

Abstract: A type of double layer(array-cluster)TiO₂ films were prepared with mixed solution of hydrochloric acid and tetrabutyl titanate (TBOT) by a hydrothermal method at specific reaction condition. It was found that the TiO₂ films on the substrate has a two-layer structure and has the tetragonal rutile phase observed from the field emission scaning electron microscopy (FESEM) and the X-ray diffraction (XRD). Moreover, the subjacent layer of the two-layer structure were TiO₂ rods array, while the supernatant layer was TiO₂ rods clusters, and microscopic structure of these rods all are made of smaller TiO₂ nanorods(25～65 nm). This two-layer structure of TiO₂ films can favors to acquiring more light and adsorbing more dye, and could provide a fast circulation channel for photon-generated electrons. The thickness of this type of TiO₂ films in supernatant layer can be varied by changing initial reactant concentration, growth time or substrate placed angles. And without any modification treatment, a light-to- electricity conversion effciency of DSSC with TiO₂ nanorod array-cluster films can enhance 2.6 time in comparison with only TiO₂ nanorod array films.

Key words:

hydrothermal method;nanorod films;TiO₂;array-clusters structure;light-to-electricity conversion efficiency

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沈阳化工大学材料科学与工程学院沈阳 110142

异形复层结构TiO₂纳米棒薄膜的水热合成及性能

通讯作者: 秦海洋,E-mail:594258299@qq.com;Telephone:+862883037862

English

Hydrothermal Synthesis of a Dysmorphic Double Layer Structure TiO₂ Nanorod Films and Its Properties

Corresponding author: 秦海洋,E-mail:594258299@qq.com;Telephone:+862883037862

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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中国化学会秘书处

异形复层结构TiO2纳米棒薄膜的水热合成及性能

通讯作者: 秦海洋,E-mail:594258299@qq.com;Telephone:+862883037862

English

Hydrothermal Synthesis of a Dysmorphic Double Layer Structure TiO2 Nanorod Films and Its Properties

Corresponding author: 秦海洋,E-mail:594258299@qq.com;Telephone:+862883037862

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

异形复层结构TiO₂纳米棒薄膜的水热合成及性能

Hydrothermal Synthesis of a Dysmorphic Double Layer Structure TiO₂ Nanorod Films and Its Properties

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