Fabrication of MSM UV Detector Using ZnO Nanowires

2011 ◽  
pp. 83-86
Keyword(s):  
Zno Nanowires ◽  
Uv Detector

High responsivity ZnO nanowires based UV detector fabricated by the dielectrophoresis method

2012 ◽  
Vol 166-167 ◽  
pp. 12-16 ◽  
Author(s):  
Liang Guo ◽  
Hong Zhang ◽  
Dongxu Zhao ◽  
Binghui Li ◽  
Zhenzhong Zhang ◽  
...  
Keyword(s):  
Zno Nanowires ◽  
Uv Detector ◽  
High Responsivity

The enhancement of a self-powered UV photodetector based on vertically aligned Ag-modified ZnO nanowires

RSC Advances ◽  
2015 ◽  
Vol 5 (82) ◽  
pp. 66738-66741 ◽  
Author(s):  
Yiyu Zeng ◽  
Xinhua Pan ◽  
Wen Dai ◽  
Yunchao Chen ◽  
Zhizhen Ye
Keyword(s):  
Response Time ◽  
Fast Response ◽  
Zno Nanowires ◽  
Uv Detection ◽  
Ag Nanoparticle ◽  
Uv Detector ◽  
Excellent Performance ◽  
Uv Photodetector ◽  
Vertically Aligned ◽  
Self Powered

A Ag nanoparticle-modified ZnO NWs based UV detector displays an excellent performance in UV detection such as high responsivity and fast response time.

Fabrication of High Sensitive UV Photodetector Based on n-ZnO Nanowire/n-Porous-Si Heterojunction

NANO ◽  
2017 ◽  
Vol 12 (04) ◽  
pp. 1750044 ◽  
Author(s):  
M. M. Haji Shahkarami ◽  
J. Koohsorkhi ◽  
H. Ghafoori Fard
Keyword(s):  
Uv Radiation ◽  
Uv Light ◽  
High Sensitivity ◽  
Significant Rise ◽  
Zno Nanowires ◽  
X Ray Diffraction ◽  
Uv Detector ◽  
Voltage Curve ◽  
Current Voltage ◽  
Current Voltage Curve

In this paper, we have reported the high sensitive UV detector using ZnO nanowires prepared on porous silicon (PS). The aligned naturally doped n-type zinc oxide (ZnO) nanowires were grown on both PS and n-Si(100) substrates to produce isotype heterojunctions using hydrothermal method. The length of the nanowires ranges 3–4[Formula: see text][Formula: see text]m and the diameter 150–200[Formula: see text]nm. Grown ZnO nanowires on PS substrate has lower reflectivity value compared with Si substrate. The electrical behavior of such devices has been examined at different intensities of UV radiation. The current–voltage curve of the isotype heterojunction shows rectifying behavior in a dark environment. Under UV light, the current was increased by using PS instead of n-Si under reverse bias. The I–V characteristics of the device show a significant rise in the current for low intensity of UV radiation evidencing the high sensitivity of the reported structure. The sensitivity for such devices is obtained, [Formula: see text] and [Formula: see text] at UV radiation of 1.5[Formula: see text]mW/cm2 intensity at bias voltage of −0.75 V for three proposed structures. The samples have been analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM) to investigate their structures and geometries.

Fabrication of flexible self-powered UV detectors based on ZnO nanowires and the enhancement by the decoration of Ag nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31316-31322 ◽  
Author(s):  
Yiyu Zeng ◽  
Xinhua Pan ◽  
Bin Lu ◽  
Zhizhen Ye
Keyword(s):  
Ag Nanoparticles ◽  
Zno Nanowires ◽  
Uv Detector ◽  
Uv Detectors ◽  
Self Powered

The flexible self-powered UV detector based on ZnO NWs shows good performance both in flat and bending conditions.

Controllable assembly and properties of ZnO nanowires

2015 ◽  
Vol 32 (2) ◽  
pp. 52-54 ◽  
Author(s):  
Bo Zhao ◽  
Nan Wang ◽  
Guohua Jiang
Keyword(s):  
High Frequency ◽  
Design Methodology ◽  
Uv Light ◽  
Zno Nanowires ◽  
Exhaled Breath ◽  
Zno Nanowire ◽  
Uv Detector ◽  
Content Type ◽  
Current Voltage ◽  
Stable Performance

Purpose – The purpose of this paper is to arrange zinc oxide (ZnO) nanowires into an appropriate position on electrodes and to research the properties of ZnO nanowires. Design/methodology/approach – In this paper, dielectrophoresis (DEP) was used to fabricate ZnO nanowire devices, and the responses to temperature, ultraviolet (UV) light and breath of the device were studied. Findings – The number of the bridged nanowires is increased with alternating current voltage. ZnO nanowires demonstrate a good photoconductivity illuminated by 365-nm UV light, and show a stable performance in monitoring unnatural breath of high frequency and low strength. Originality/value – In this paper, DEP is a promising method for controllable assembly of ZnO nanowires. ZnO nanowires demonstrate a good response to 365-nm UV light and exhaled breath, which show great potential application in UV detector and medical monitor.

Development and Validation of A Reversed Phase-High Performance Liquid Chromatography Method for the Quantitative Estimation of Ramipril Drug Content from Formulated Dosage Form

2016 ◽  
Vol 6 (3) ◽  
Author(s):  
Raju Chandra ◽  
Manisha Pant ◽  
Harchan Singh ◽  
Deepak Kumar ◽  
Ashwani Sanghi
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Active Ingredient ◽  
High Performance ◽  
Limit Of Detection ◽  
Quantitative Estimation ◽  
Reversed Phase ◽  
Uv Detector ◽  
Chromatography Method ◽  
Drug Content

A reliable and reproducible reversed-phase high performance liquid chromatography (RP-HPLC) was developed for the quantitative determination of Remipril drug content from marketed bulk tablets. The active ingredient of Remipril separation achieved with C18 column using the methanol water mobile phase in the ratio of 40:60 (v/v). The active ingredient of the drug content quantify with UV detector at 215 nm. The retention time of Remipril is 5.63 min. A good linearity relation (R2=0.999) was obtained between drug concentration and average peak areas. The limit of detection and limit of quantification of the instrument were calculated 0.03 and 0.09 µg/mL, respectively. The accuracy of the method validation was determined 102.72% by recoveries method.

Sign in / Sign up

Export Citation Format

Share Document