UHMWPE band-gap properties -II: Effect of post e-beam irradiation real time shelf aging in air

2019 ◽  
Vol 159 ◽  
pp. 231-237 ◽  
Author(s):  
Malik Sajjad Mehmood ◽  
Ismat Thira ◽  
Adnan Idris ◽  
Tariq Yasin ◽  
Masroor Ikram
2011 ◽  
Vol 50 (9R) ◽  
pp. 098005
Author(s):  
Koichi Maruyama ◽  
Tetsuya Watanabe ◽  
Shigeharu Takenaka ◽  
Hiroyuki Asai ◽  
Kazuyoshi Oomori ◽  
...  

2020 ◽  
Vol 58 (11) ◽  
pp. 793-797
Author(s):  
Su-Hyeon Choe ◽  
Yun-Je Park ◽  
Yu-Sung Kim ◽  
Byung-Chul Cha ◽  
Sung-Bo Heo ◽  
...  

Transparent and conductive Ti doped In<sub>2</sub>O<sub>3</sub> (TIO) films were prepared on slide glass substrate using a radio frequency (RF) magnetron sputter and then subjected to Transparent and conductive Ti doped In<sub>2</sub>O<sub>3</sub> (TIO) films were prepared on a glass slide substrate using radio frequency (RF) magnetron sputter. The film surface was then subjected to intense electron beam irradiation, to study the influence of incident energy on the visible transmittance and electrical resistivity of the films. All x-ray diffraction plots exhibited some diffraction peaks of the cubic bixbyite In<sub>2</sub>O<sub>3</sub> (222), (400), (332), (431), (440), and (444) planes regardless of the electron irradiation energy, while the characteristic diffraction peak for crystalline TiO<sub>2</sub> did not appear even when irradiated at 1500 eV. In atomic force microscope analysis, the surface roughness of the as deposited TIO films was found to be 0.63 nm. As the electron irradiation energy was increased up to 1500 eV, the root mean square roughness decreased down to 0.36 nm. The films electron irradiated at 1500 eV showed higher visible transmittance of 83.2% and the lower resistivity of 6.4 × 10<sup>-4</sup> Ωcm compared to the other films. From the electrical properties and optical band gap observation, it is supposed that the band gap shift is related to the carrier density. The band gap enlarged from 4.013 to 4.108 eV, along with an increase in carrier density from 9.82 × 10<sup>19</sup> to 3.22 × 10<sup>20</sup> cm<sup>-3</sup>.


2020 ◽  
Vol 77 (5) ◽  
pp. 395-398
Author(s):  
Yong Seok Hwang ◽  
Maengjun Kim ◽  
Jaekwon Suk ◽  
Chan Young Lee ◽  
Jun Mok Ha ◽  
...  

2011 ◽  
Vol 50 (9) ◽  
pp. 098005
Author(s):  
Koichi Maruyama ◽  
Tetsuya Watanabe ◽  
Shigeharu Takenaka ◽  
Hiroyuki Asai ◽  
Kazuyoshi Oomori ◽  
...  

2018 ◽  
Vol 42 (4) ◽  
pp. 2726-2732 ◽  
Author(s):  
Archana K. Munirathnappa ◽  
Vikash C. Petwal ◽  
Jishnu Dwivedi ◽  
Nalini G. Sundaram

Band gap engineering in NaEu(WO4)2 red phospors via dose-dependent EB irradiation: a new strategy for improving fluorescence intensity.


2007 ◽  
Vol 1017 ◽  
Author(s):  
Francisco Solá ◽  
Oscar Resto ◽  
Azlin M Biaggi-Labiosa ◽  
Luis F Fonseca

AbstractA novel synthesis of silica nanowires and silica/carbon heterostructures by electron beam irradiation on porous silicon films was investigated. The method allows us to monitor the growth process in real time at atomic scales. Depending on the electron dose we obtain nanowires with diameters in the range of 15-49nm and lengths up to 500 nm. We found that the adequate electron dose was between 0.01 Acm-2 and 2 Acm-2. Additional electron dose causes plastic and failure deformations in the silica nanowires. A growth model consistent with our findings is presented that involves the flow of mass from the substrate to the nanowire driven by the local electric fields. Heterostructures showing a nanopalm-like shape are obtained after exposing the silica nanowire to poor vacuum conditions in which carbon aggregation from the surrounding gas is promoted by the local electric fields enhanced at the tip of the silica wires.


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