Silver-doped zinc oxide single nanowire multifunctional nanosensor with a significant enhancement in response
Închide
Conţinutul numărului revistei
Articolul precedent
Articolul urmator
288 0
SM ISO690:2012
LUPAN, Oleg; CREŢU, Vasilii; POSTICA, Vasilie; AHMADI, Mahdi; CUENYA, Beatriz Roldan; CHOW, Lee; TIGINYANU, Ion; VIANA, Bruno; PAUPORTE, Thierry; ADELUNG, Rainer. Silver-doped zinc oxide single nanowire multifunctional nanosensor with a significant enhancement in response. In: Sensors and Actuators, B: Chemical. 2016, nr. 223, pp. 893-903. ISSN -.
10.1016/j.snb.2015.10.002
EXPORT metadate:
Google Scholar
Crossref
CERIF

DataCite
Dublin Core
Sensors and Actuators, B: Chemical
Numărul 223 / 2016 / ISSN - /ISSNe 0925-4005

Silver-doped zinc oxide single nanowire multifunctional nanosensor with a significant enhancement in response


DOI: 10.1016/j.snb.2015.10.002
Pag. 893-903

Lupan Oleg1234, Creţu Vasilii2, Postica Vasilie2, Ahmadi Mahdi4, Cuenya Beatriz Roldan45, Chow Lee4, Tiginyanu Ion2, Viana Bruno3, Pauporte Thierry3, Adelung Rainer1
 
1 Institute for Material Science, Christian-Albrechts- University of Kiel,
2 Technical University of Moldova,
3 PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris,
4 University of Central Florida,
5 Ruhr-University Bochum, Bochum
 
Disponibil în IBN: 18 decembrie 2017


Rezumat

Enhanced performances were obtained for nanosensors based on a single nanowire of silver-doped zinc oxide (ZnO:Ag). Arrays of crystalline ZnO:Ag nanowires were synthesized by electrodeposition on F-doped tin oxide coated substrates and studied by SEM, EDX, TEM, HRTEM, SIMS, XPS, PL and micro-Raman spectroscopy. Integration of a single nanowire or a single microwire on the chip was performed by employing metal maskless nanodeposition in the dual beam focused electron/ion beam instrument. The ultraviolet (UV) response and hydrogen (H2) gas response were studied for nanodevices and microdevices based on a single ZnO:Ag nanowire. We found that ZnO:Ag nanowire based nanosensor possesses a much faster response/recovery time and a higher response to UV radiation and hydrogen gas (∼50%) than those reported in literature. An increase in current value of about two orders in magnitude IUVON/IUVOFF was observed under exposure to UV light. Faster response/recovery times of about 0.98 s/0.87 s were observed. The ZnO:Ag nanowires and microwires can serve as nano-building materials for ultrasensitive and ultra-fast sensors with reduced power consumption. The mechanisms for such improved responses to UV and H2 were discussed. The developed nanomaterial is of great scientific interest for further studies as promising candidates for fabricating multifunctional nano-sensors, LEDs and photodetectors by bottom-up and hybrid nanotechnologies.  

Cuvinte-cheie
Nano-photodetector, Nanocrystalline materials, ZnO:Ag,

nanosensor, Nanowire