Au/TiO2 nanorod-based Schottky-type UV photodetectors

被引：27

作者：

Karaagac, Hakan ^{[1
]}

Aygun, Levent Erdal ^{[1
,2
]}

Parlak, Mehmet ^{[3
]}

Ghaffari, Mohammad ^{[1
,2
]}

Biyikli, Necmi ^{[1
]}

Okyay, Ali Kemal ^{[1
,2
]}

机构：

[1] Bilkent Univ, Inst Mat Sci & Nanotechnol, TR-06800 Ankara, Turkey

[2] Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey

[3] Middle E Tech Univ, Dept Phys, TR-06800 Ankara, Turkey

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2012年 / 6卷 / 11期

关键词：

nanorods; photodetectors; responsivity; Schottky diodes; TiO2; hydrothermal growth;

D O I：

10.1002/pssr.201206379

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiO2 nanorods (NRs) were synthesized on fluorine-doped tin oxide (FTO) pre-coated glass substrates using hydrothermal growth technique. Scanning electron microscopy studies have revealed the formation of vertically-aligned TiO2 NRs with length of similar to 2 mu m and diameter of 110128 nm, homogenously distributed over the substrate surface. 130 nm thick Au contacts using thermal evaporation were deposited on the n-type TiO2 NRs at room temperature for the fabrication of NR-based Schottky-type UV photodetectors. The fabricated Schottky devices functioned as highly sensitive UV photodetectors with a peak responsivity of 134.8 A/W (lambda = 350 nm) measured under 3 V reverse bias. (c) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：442 / 444

页数：3

共 9 条

[1] GaN photodetectors with transparent indium tin oxide electrodes [J].