Determination of trap levels in CZT:In by thermally stimulated current spectroscopy

2012 ◽  
Vol 22 ◽  
pp. s148-s152 ◽  
Author(s):  
Rui-hua NAN ◽  
Wan-qi JIE ◽  
Gang-qiang ZHA ◽  
Xu-xu BAI ◽  
Bei WANG ◽  
...  
Keyword(s):  
Thermally Stimulated Current ◽  
Thermally Stimulated Current Spectroscopy ◽  
Trap Levels

Localized Deep and Shallow Traps of α-Peaks from Thermally Stimulated Current (TSC) Measurement on Thermoplastic Polymers

2021 ◽  
Vol 317 ◽  
pp. 369-376
Author(s):  
Norhana Abdul Halim ◽  
Siti Zulaikha Ngah Demon ◽  
Norli Abdullah ◽  
Nurazlin Ahmad ◽  
Zul Hazrin Zainal Abidin
Keyword(s):  
Deep Trap ◽  
Order Kinetic ◽  
Thermally Stimulated Current ◽  
Thermoplastic Polymers ◽  
Debye Relaxation ◽  
First Order ◽  
Plasticized Pvc ◽  
Space Charges ◽  
Shallow Traps ◽  
Trap Levels

In this paper, trap levels around the glass transition temperature (Tg) of polymers have been characterized using Thermally Stimulated Current (TSC) technique. Deconvolution on α-peaks of the Tg for PE (-104 °C), plasticized PVC (-35 °C), PMMA (90 °C) and PET (96 °C) were carried out based on the first-order kinetic theory for non-Debye relaxation. Using temperature, T from TSC experimental data, we have successfully separated the α-peaks of the thermoplastic polymers. It is found that the complex curve of α-peaks can composed of four (4) to eight (8) sub peaks. Dominant sub peaks were identified at Tmax = -105 °C, -34 °C, 89 °C and 92 °C for PE, pPVC, PMMA and PET, respectively. These peaks show activation energy, Ea of shallow and deep trap centers ranged from 0.3 eV to 4.6 Ev where they represent the depolarization of localized dipoles and space charges relaxations in the polymers.

Investigation on defect levels in CdZnTe : Al using thermally stimulated current spectroscopy

2010 ◽  
Vol 43 (34) ◽  
pp. 345104 ◽  
Author(s):  
Ruihua Nan ◽  
Wanqi Jie ◽  
Gangqiang Zha ◽  
Tao Wang ◽  
Yadong Xu ◽  
...  
Keyword(s):  
Thermally Stimulated Current ◽  
Thermally Stimulated Current Spectroscopy ◽  
Defect Levels
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