Formation of Anisotropic Nanostructures on Rutile TiO2(110) Surfaces and Their Photo-Absorption Properties

被引：8

作者：

Solanki, Vanaraj ^{[1
,2
]}

Joshi, Shalik Ram ^{[1
]}

Mishra, Indrani ^{[1
]}

Kanjilal, D. ^{[3
]}

Varma, Shikha ^{[1
]}

机构：

[1] Inst Phys, Sachivalaya Marg, Bhubaneswar 751005, Odisha, India

[2] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India

[3] Inter Univ Accelerator Ctr, New Delhi 110067, India

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2018年 / 49A卷 / 07期

关键词：

PATTERN-FORMATION; ION-BOMBARDMENT; TIO2; PHOTOCATALYSIS; OXIDES; STATES; FILMS; DOTS;

D O I：

10.1007/s11661-018-4622-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Enhancement of absorption properties in nanostructures of rutile TiO2, fabricated through an ion beam sputtering process, are reported here. The nanostructures are anisotropic in nature, being elongated along the [001] direction. With increasing fluence, the anisotropy of the nanostructures increases. Their width along [10], however, is constrained and does not grow proportionally. The results indicate that the asymmetric diffusion of mobile species, created by preferential sputtering, on the rutile TiO2(110) surface plays a crucial role in defining the nanostructure morphology as well as the photo-absorption properties. An enhanced photo-absorption response from TiO2 nanostructures was also observed here. The results were obtained in the absence of any dopant material.

引用

页码：3117 / 3121

页数：5

共 37 条

[31] Room temperature superparamagnetism in rutile TiO2 quantum dots produced via ECR sputtering [J].