Effect of end group of amorphous perfluoro-polymer electrets on electron trapping
Autor: | Yuji Suzuki, Ai Sugie, Hiroyuki Yoshida, Kuniko Suzuki, Masafumi Yoshida, Seonwoo Kim |
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Jazyk: | angličtina |
Rok vydání: | 2018 |
Předmět: |
Materials science
lcsh:Biotechnology electron affinity (EA) 02 engineering and technology 010402 general chemistry 01 natural sciences fluorinated polymer Trap (computing) X-ray photoelectron spectroscopy lcsh:TP248.13-248.65 lcsh:TA401-492 General Materials Science Physics::Atomic Physics Electret CYTOP density functional theory Condensed Matter::Quantum Gases chemistry.chemical_classification Polymer 021001 nanoscience & nanotechnology Penning trap low-energy inverse photoelectron spectroscopy (LEIPS) 0104 chemical sciences Amorphous solid End-group chemistry Density functional theory lcsh:Materials of engineering and construction. Mechanics of materials Atomic physics 0210 nano-technology |
Zdroj: | Science and Technology of Advanced Materials, Vol 19, Iss 1, Pp 486-494 (2018) |
ISSN: | 1878-5514 1468-6996 |
Popis: | Charge trap in amorphous perfluoro-polymer electret is studied, focusing on electron trap site and trap energy. Low-energy inverse photoelectron spectroscopy is adopted to measure solid-state electron affinity (EA) of cyclic transparent optical polymer (CYTOP). EA of CYTOP CTL-S is discovered by compensating the unwanted charge-up effect. Negatively-charged electret materials (polyethylene, ethylene-tetra-fluoro-ethylene, poly-tetra-fluoro-ethylene, and CYTOP) are analyzed by quantum mechanical calculation. Density functional theory with long-range correction is adopted to analyze orbital energies of single molecular systems. Intramolecular distribution of trapped electron and EA are investigated. Calculated electron affinities of CYTOP polymers with different end group are qualitatively in accordance with trapped charge stability measured with thermal stimulated discharge, signifying that electron affinities obtained with the present simulation can be used as an index of amorphous polymer electret. |
Databáze: | OpenAIRE |
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