کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10671014 | 1009031 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Growth of cubic and hexagonal CdTe thin films by pulsed laser deposition
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Growth of cubic and hexagonal CdTe thin films by pulsed laser deposition Growth of cubic and hexagonal CdTe thin films by pulsed laser deposition](/preview/png/10671014.png)
چکیده انگلیسی
The paper reports the growth of cadmium telluride (CdTe) thin films by pulsed laser deposition (PLD) using excimer laser (KrF, λ=248 nm, 10 Hz) on corning 7059 glass and SnO2-coated glass (SnO2/glass) substrates at different substrate temperatures (Ts) and at different laser energy pulses. Single crystal target CdTe was used for deposition of thin films. With 30 min deposition time, 1.8- to â¼3-μm-thick films were obtained up to 200 °C substrate temperature. However, the film re-evaporates from the substrate surface at temperatures >275 °C. Atomic force microscopy (AFM) shows an average grain size â¼0.3 μm. X-ray diffraction analysis confirms the formation of CdTe cubic phase at all pulse energies except at 200 mJ. At 200 mJ laser energy, the films show hexagonal phase. Optical properties of CdTe were also investigated and the band gap of CdTe films were found as 1.54 eV for hexagonal phase and â¼1.6 eV for cubic phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 473, Issue 1, 1 February 2005, Pages 54-57
Journal: Thin Solid Films - Volume 473, Issue 1, 1 February 2005, Pages 54-57
نویسندگان
S.K. Pandey, Umesh Tiwari, R. Raman, Chandra Prakash, Vamsi Krishna, Viresh Dutta, K. Zimik,