Raman investigation on thin and thick CdTe films obtained by close spaced vacuum sublimation technique
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
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Raman investigation on thin and thick CdTe films obtained by close spaced vacuum sublimation technique
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| Creator |
Нам, Д.
Нам, Д. Nam, Dahyun Чеонг, Г. Чеонг, Г. Cheong, H. Опанасюк, Анатолій Сергійович Опанасюк, Анатолий Сергеевич Opanasiuk, Anatolii Serhiiovych Коваль, Павло Вікторович Коваль, Павел Викторович Koval, Pavlo Viktorovych Косяк, Володимир Володимирович Косяк, Владимир Владимирович Kosiak, Volodymyr Volodymyrovych Фочук, Петро Михайлович Фочук, Петр Михайлович Fochuk, Petro Mikhailovich |
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| Subject |
thick films
thin films CdTe structure Raman spectroscopy |
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| Description |
The CdTe thin and thick films were obtained by the close spaced vacuum sublimation technique on a glass substrate under the following growth conditions: the evaporator temperature was 620 °C; and the substrate temperature was varied in the range from 250 °C to 550 °C. High purity CdTe powder was used as a charge for evaporation. The Raman spectra were measured using TRIAX 320 and TRIAX 550 spectrometers at room temperature. The 488-nm line and 514.5-nm line of an Ar+ laser and a 785-nm diode laser were used as excitation sources. The signal was collected by the liquid nitrogen cooled chargecoupled-device (CCD) detector. A number of intense Raman peaks at 140, 167, 190, 271, 332 and 493 cm-1 were observed and were interpreted as TO (140 cm-1), 1LO (167 cm-1), 2LO (332 cm-1), 3LO (493 cm-1) phonon modes and plasmon-phonon mode (190 cm-1). The presence of several phonon replicas in the Raman spectra confirms high crystal quality of the samples. This work is supported by the Ukraine State Agency for the Science, Innovation, and Informatization and by the NRF grant funded by the MEST of Korea (2011-0019204) and by the Ministry of Education and Science of Ukraine. |
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| Publisher |
WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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| Date |
2014-10-16T11:39:03Z
2014-10-16T11:39:03Z 2014 |
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| Type |
Article
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| Identifier |
Raman investigation on thin and thick CdTe films obtained by close spaced vacuum sublimation technique / D. Nam, H. Cheong, A. S. Opanasyuk, P. V. Koval, V. V. Kosyak, and P. M. Fochuk // «Phys. Status Solidi C» 2014, V.11, №9, Р. 1515-1518
http://essuir.sumdu.edu.ua/handle/123456789/37061 |
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| Language |
en
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