Optimization of TiO2/Cu/TiO2 Multilayer as Transparent Composite Electrode (TCE) Deposited on Flexible Substrate at Room Temperature

2014 ◽  
Vol 3 (11) ◽  
pp. N33-N36 ◽  
Author(s):  
A. Dhar ◽  
T. L. Alford
Keyword(s):  
Room Temperature ◽  
Composite Electrode ◽  
Flexible Substrate ◽  
Transparent Composite

Optimization of TiO 2 /Cu/TiO 2 multilayers as a transparent composite electrode deposited by electron-beam evaporation at room temperature

2015 ◽  
Vol 24 (4) ◽  
pp. 047701 ◽  
Author(s):  
Hong-Tao Sun ◽  
Xiao-Ping Wang ◽  
Zhi-Qi Kou ◽  
Li-Jun Wang ◽  
Jin-Ye Wang ◽  
...  
Keyword(s):  
Electron Beam ◽  
Room Temperature ◽  
Composite Electrode ◽  
Electron Beam Evaporation ◽  
Transparent Composite

Optimization of IGZO/Cu/IGZO Multilayers as Transparent Composite Electrode on Flexible Substrate by Room-temperature Sputtering and Post-Deposition Anneals

2013 ◽  
Vol 1577 ◽  
Author(s):  
Aritra Dhar ◽  
T. L. Alford
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Sheet Resistance ◽  
Room Temperature ◽  
Flexible Substrate ◽  
Middle Layer ◽  
Optical Transmittance ◽  
Optical And Electrical Properties ◽  
Composite Electrodes ◽  
Transparent Composite

ABSTRACTHighly transparent composite electrodes made of multilayers of In- and Ga-doped ZnO and Cu (IGZO/Cu/IGZO) thin films (30/3-9/30 nm thick) are deposited onto flexible substrates at room temperature and by using radio frequency magnetron sputtering. The effect of Cu thickness on the electrical and optical properties of the multilayer stack has been studied in accordance with the Cu morphology. The optical and electrical properties of the multilayers are studied with the UV–Vis spectrophotometry, Hall measurement and four point probe analyses. Results are compared with those from a single IGZO layered thin film. The average optical transmittance and sheet resistance both decreases with increase of copper thickness and has been optimized at 6 nm Cu middle layer thickness. The Haacke figure of merit (FOM) has been calculated to evaluate the performance of the films. The highest FOM achieved is 6 x 10-3 Ω-1 for a Cu thickness of 6 nm with a sheet resistance of 12.2 Ω/sq and an average transmittance of 86%. The multilayered thin films are annealed upto 150 °C in vacuum, forming gas and O2 environments and the optical and electrical properties are studied and compared against the as-deposited samples. Thus IGZO/Cu/IGZO multilayer is a promising flexible electrode material for the next-generation flexible optoelectronics.

scholarly journals High quality transparent TiO2/Ag/TiO2 composite electrode films deposited on flexible substrate at room temperature by sputtering

APL Materials ◽  
2013 ◽  
Vol 1 (1) ◽  
pp. 012102 ◽  
Author(s):  
Aritra Dhar ◽  
T. L. Alford
Keyword(s):  
Room Temperature ◽  
Composite Electrode ◽  
Flexible Substrate ◽  
High Quality

Effect of Silver thickness and Annealing on Optical and Electrical Properties of Nb2O5/Ag/Nb2O5 Multilayers as Transparent Composite Electrode on Flexible Substrate

2013 ◽  
Vol 1552 ◽  
pp. 101-106
Author(s):  
Aritra Dhar ◽  
T. L. Alford
Keyword(s):  
Electrical Properties ◽  
Room Temperature ◽  
Flexible Substrate ◽  
Optical Transmittance ◽  
Conducting Layer ◽  
Flexible Substrates ◽  
Optical And Electrical Properties ◽  
Average Optical Transmittance ◽  
Temperature Deposition ◽  
Transparent Composite

ABSTRACTMultilayer structures of Nb2O5/Ag/Nb2O5 have been deposited onto flexible substrates by sputtering at room temperature to develop indium free composite transparent conductive electrodes. The optical and electrical properties of the multilayers are measured by UV–Visible spectroscopy, Hall measurement and four point probe and the effect of Ag thickness has been studied. The critical thickness of Ag to form a continuous conducting layer is found to be 9.5 nm and the multilayer stack has been optimized to obtain a sheet resistance of 7.2 Ω/sq and an average optical transmittance of 86 % at 550 nm. The Haacke figure of merit (FOM) has been calculated for the films, and the multilayer with 9.5 nm thick Ag layer has the highest FOM with 31.5 x 10-3 Ω/sq, which is one of the best FOM reported till date for room temperature deposition on flexible substrates. The multilayered samples are annealed in vacuum, forming gas, air and O2 environments and the optical and electrical properties are compared against the as-deposited samples.

Transparent composite electrode for high-efficiency polymer LEDs

2012 ◽  
Author(s):  
Lu Li ◽  
Zhibin Yu ◽  
Jiajie Liang ◽  
Chia-Hao Chang ◽  
Weili Hu ◽  
...  
Keyword(s):  
Composite Electrode ◽  
High Efficiency ◽  
Polymer Leds ◽  
Transparent Composite

A nitrogen doped carbonized metal–organic framework for high stability room temperature sodium–sulfur batteries

2016 ◽  
Vol 4 (32) ◽  
pp. 12471-12478 ◽  
Author(s):  
Yu-Ming Chen ◽  
Wenfeng Liang ◽  
Si Li ◽  
Feng Zou ◽  
Sarang M. Bhaway ◽  
...  
Keyword(s):  
High Stability ◽  
Room Temperature ◽  
Composite Electrode ◽  
Metal Organic Framework ◽  
Specific Capacity ◽  
Nitrogen Doped ◽  
Metal Organic ◽  
Sodium Sulfur ◽  
Organic Framework

A nitrogen-doped carbonized metal–organic framework was utilized for room temperature sodium sulfur batteries. The cZIF-8/S composite electrode exhibited good cyclability over 250 cycles at 0.2C with a specific capacity of 500 mA h g−1.

A Novel RFID-Based Thermal Convection Accelerometer with Heater and Thermal Piles Deposited by E-Gun Focused on Mixing Powders of Metals

2013 ◽  
Vol 364 ◽  
pp. 262-266
Author(s):  
Jium Ming Lin ◽  
Cheng Hung Lin
Keyword(s):  
Thermal Convection ◽  
Room Temperature ◽  
Flexible Substrate ◽  
Cold Region ◽  
Rfid Tag ◽  
Active Rfid ◽  
New Device ◽  
Polyimide Substrate ◽  
Power Leakage ◽  
Rectangular Chamber

This paper proposes an innovated method to integrate an active RFID tag with a thermal convection accelerometer with heater and thermal piles deposited on a flexible substrate by E-gun, thus it is a wireless sensor for easy usage in many fields. The other advantages of the new device are as: (1) The thermal conductivity (λ148W/(mK)) of the traditional Si is about 25 times of the proposed polyimide substrate (λ6-0.17W/(mK)), thus the power leakage through the substrate is reduced. (2) The heaters and the thermal piles are deposited by E-gun focused on a target of mixing powders of metals on the flexible substrate, so it is different from the traditional ones by using the structures floating over a grooved cavity. Thus the new device is not only easy to make, but more reliable to operate in large acceleration impact condition without damage. (3) The thermal piles are divided into two portions respectively exposed to a cold region and a hot region. The cold junctions of thermal piles are put outside the cap to make it exactly at the room temperature, thus the device is very easy to calibrate and more accurate. (4) The chamber is filled with another kind of gas such as Xe or Ar to avoid the oxidizing effect produced by the commercial ones with carbon dioxide or air, and then the reliability as well as the life cycle of the heater can be increased. (5) By the results of simulation, one can see the traditional rectangular chamber can be replaced by a hemi-cylindrical one to extend both the operation range and sensitivity of the thermal convection accelerometer.

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