Zinc Oxide Nanowire Photodetectors with Single-Walled Carbon Nanotube Thin-Film Electrodes

Date

2012-10-01

Author

Ates, Elif Selen
Kucukyildiz, Seyda
Ünalan, Hüsnü Emrah

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

197
views

0
downloads

In this study, transparent and flexible zinc oxide (ZnO) nanowire ultraviolet (UV) photodetectors prepared via a solution-based method in which single-walled carbon nanotube (SWNT) thin films were used as transparent electrodes are reported. The photoresponse current was found to be in proportion with the ZnO nanowire density, and the nanowire density could be tuned to increase the photocurrent by a factor of 300. The decay time for the fabricated photodetectors was found to be as low as 16 s. This study suggests the possibility of fabricating inexpensive, visible-blind UV photodetectors via solution-based methods.

Subject Keywords

Carbon nanotubes, Zinc oxide, Nanowires, Photodetectors, Heterojunctions, Transparent and flexible devices

URI

https://hdl.handle.net/11511/46660

Journal

ACS APPLIED MATERIALS & INTERFACES

DOI

https://doi.org/10.1021/am301402y

Collections

Department of Metallurgical and Materials Engineering, Article

Suggestions

OpenMETU
Core

Zinc oxide nanowire enhanced multifunctional coatings for cotton fabrics Ates, Elif Selen; Ünalan, Hüsnü Emrah (2012-05-01) Zinc oxide (ZnO) nanowires have been grown on cotton fabric to impart self-cleaning, superhydrophobicity and ultraviolet (UV) blocking properties. ZnO nanowires were grown by the microwave assisted hydrothermal method and subsequently functionalized with steraic acid to obtain a water contact angle of 150 degrees, showing their superhydrophobic nature which is found to be stable up to 4 washings. UV protection of the resulting cotton fabric was also examined and significant decrease in the transmission of U...
Zinc Oxide Nanowire Decorated Single-Use Electrodes for Electrochemical DNA Detection Congur, Gulsah; Ates, Elif Selen; Afal, Aysegul; ERDEM GÜRSAN, KADRİYE ARZUM; Erdem, Arzum (2015-02-01) The surfaces of pencil graphite electrodes (PGEs) were decorated with zinc oxide nanowires (ZnO NWs) for the electrochemical detection of nucleic acids. ZnO NWs were synthesized through simple hydrothermal method. PGEs decorated with ZnO NWs (ZnO NW/PGEs) were electrochemically characterized through cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) following morphological characterization through transmission (TEM) and scanning electron microscopy (SEM). Enhanced sensor response obtai...
Sol-gel derived tungsten oxide based electrochromic coatings Işık, Dilek; Durucan, Caner; Department of Metallurgical and Materials Engineering (2008) The microstructural, electrochemical and optical properties of sol-gel derived tungsten oxide electrochromic coatings have been investigated. Coatings were formed by spinning of tungsten metal based aqueous sol on glass with native ITO layer. Three sol formulations; acetylated peroxotungstic acid (APTA), peroxotungstic acid (PTA) and titanium-doped peroxotungstic acid (Ti-PTA) were employed to obtain 200-300 nm thick multi-layered coatings. Material and electrochromic characterization of the coatings have b...
Zinc oxide nanowire networks for macroelectronic devices Ünalan, Hüsnü Emrah; Hiralal, Pritesh; Dalal, Sharvari; Chu, Daping; Eda, Goki; Teo, K. B. K.; Chhowalla, Manish; Milne, William I.; Amaratunga, Gehan A. J. (AIP Publishing, 2009-04-20) Highly transparent zinc oxide (ZnO) nanowire networks have been used as the active material in thin film transistors (TFTs) and complementary inverter devices. A systematic study on a range of networks of variable density and TFT channel length was performed. ZnO nanowire networks provide a less lithographically intense alternative to individual nanowire devices, are always semiconducting, and yield significantly higher mobilites than those achieved from currently used amorphous Si and organic TFTs. These r...
Silver containing sol-gel derived silica thin films: effect of aluminum incorporation on optical, microstructural and bactericidal properties Akgun, Betul Akkopru; Mellott, Nathan P.; Durucan, Caner (2012-05-01) Silver containing silica (Ag-SiO2) thin films with and without aluminum (Al) were prepared on soda-lime-silica glass by spin coating of aqueous sols. The coating sol was formed through mixing tetraethyl orthosilicate [Si(OC2H5)(4)]/ethanol solution with aqueous silver nitrate (AgNO3) and aluminum nitrate nonahydrate [(AlNO3)(3)center dot 9H(2)O] solutions. The deposited films were calcined in air at 100, 300 and 500 A degrees C for 2 h and characterized using x-ray diffraction, UV-visible and x-ray photoele...

Citation Formats

E. S. Ates, S. Kucukyildiz, and H. E. Ünalan, “Zinc Oxide Nanowire Photodetectors with Single-Walled Carbon Nanotube Thin-Film Electrodes,” ACS APPLIED MATERIALS & INTERFACES, pp. 5142–5146, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46660.