Electron energy loss spectroscopy (EELS) of H2O,H2S,H2Se and H2Te |
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| Affiliation: | 1. Department of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Sunchon, Jeonnam 540-950, Republic of Korea;2. School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 130-743, Republic of Korea;3. Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea;4. Department of Dental Materials, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 501-759, Republic of Korea |
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| Abstract: | Electronic excitation in H2O, H2S, H2Se and H2Te molecules has been studied by the EELS technique. Spectra of H2S and H2Se are remarkably similar with the 1b1-nd transition most intense. The intensity of the first transition 1b1-nsa1 decreases through H2O to H2Se and this transition is absent in H2Te. Transitions observed by EELS have been compared with optical absorption studies. A correlation diagram of the occupied and the excited states has been provided for these four molecules by making use of UVPES and EELS. |
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