Synthesis of ZnO tetrapods for flexible and transparent UV sensors

被引:45
作者
Rackauskas, Simas [1 ]
Mustonen, Kimmo [1 ]
Jarvinen, Terhi [1 ]
Mattila, Marco [2 ]
Klimova, Olga [3 ]
Jiang, Hua [1 ]
Tolochko, Oleg [3 ]
Lipsanen, Harri [2 ]
Kauppinen, Esko I. [1 ]
Nasibulin, Albert G. [1 ]
机构
[1] Aalto Univ, NanoMat Grp, Dept Appl Phys, Espoo 00076, Finland
[2] Aalto Univ, Dept Micro & Nanosci, Espoo 02150, Finland
[3] St Petersburg State Polytech Univ, Mat Sci Fac, St Petersburg 195251, Russia
基金
芬兰科学院;
关键词
OPTICAL-PROPERTIES; NANOCRYSTALS; NANOSTRUCTURES; GROWTH; NANOWIRES; MECHANISM; NANOTETRAPODS; MORPHOLOGIES; KINETICS;
D O I
10.1088/0957-4484/23/9/095502
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
ZnO tetrapods (ZnO-Ts) were synthesized in a vertical flow reactor by gas phase oxidation of Zn vapor in an air atmosphere. The morphology of the product was varied from nearly spherical nanoparticles to ZnO-Ts, together with the partial pressure of Zn and reaction temperature. MgO introduced during synthesis, increased the band gap, the optical transparency in the visible range, and also changed the ZnO-T structure. Fabricated flexible transparent UV sensors showed a 45-fold current increase under UV irradiation with an intensity of 30 mu W cm(-2) at a wavelength of 365 nm and response time of 0.9 s.
引用
收藏
页数:7
相关论文
共 39 条
[11]   Room-temperature excitonic lasing in ZnO tetrapod-like crystallites [J].
Li, Lyudmila E. ;
Demianets, Lyudmila N. .
OPTICAL MATERIALS, 2008, 30 (07) :1074-1078
[12]   Bascule nanobridges self-assembled with ZnO nanowires as double Schottky barrier UV switches [J].
Li, Yanbo ;
Paulsen, Alexander ;
Yamada, Ichiro ;
Koide, Yasuo ;
Delaunay, Jean-Jacques .
NANOTECHNOLOGY, 2010, 21 (29)
[13]   A single ZnO tetrapod-based sensor [J].
Lupan, Oleg ;
Chow, Lee ;
Chai, Guangyu .
SENSORS AND ACTUATORS B-CHEMICAL, 2009, 141 (02) :511-517
[14]   Focused-ion-beam fabrication of ZnO nanorod-based UV photodetector using the in-situ lift-out technique [J].
Lupan, Oleg ;
Chow, Lee ;
Chai, Guangyu ;
Chernyak, Leonid ;
Lopatiuk-Tirpak, Olena ;
Heinrich, Heige .
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2008, 205 (11) :2673-2678
[15]   Mechanism and Kinetics of Spontaneous Nanotube Growth Driven by Screw Dislocations [J].
Morin, Stephen A. ;
Bierman, Matthew J. ;
Tong, Jonathan ;
Jin, Song .
SCIENCE, 2010, 328 (5977) :476-480
[16]   Multifunctional Free-Standing Single-Walled Carbon Nanotube Films [J].
Nasibulin, Albert G. ;
Kaskela, Antti ;
Mustonen, Kimmo ;
Anisimov, Anton S. ;
Ruiz, Virginia ;
Kivisto, Samuli ;
Rackauskas, Simas ;
Timmermans, Marina Y. ;
Pudas, Marko ;
Aitchison, Brad ;
Kauppinen, Marko ;
Brown, David P. ;
Okhotnikov, Oleg G. ;
Kauppinen, Esko I. .
ACS NANO, 2011, 5 (04) :3214-3221
[17]   ZnO tetrapod nanocrystals [J].
Newton, Marcus C. ;
Warburton, Pau A. .
MATERIALS TODAY, 2007, 10 (05) :50-54
[18]  
Newton Marcus C., 2006, J PHYS C SER, V26, P251
[19]   Nanobelts of semiconducting oxides [J].
Pan, ZW ;
Dai, ZR ;
Wang, ZL .
SCIENCE, 2001, 291 (5510) :1947-1949
[20]   Kinetics of oriented aggregation [J].
Penn, RL .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (34) :12707-12712