کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5466448 | 1517992 | 2016 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Properties of hafnium-aluminum-zinc-oxide thin films for the application of oxide-transistors
ترجمه فارسی عنوان
خواص چسب نازک هافنیوم-آلومینیوم-روی-اکسید برای کاربرد ترانزیستورهای اکسید
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
Hafnium-aluminum zinc oxide (HAZO) films as an active layer of oxide-transistors with different hafnium (Hf) contents were deposited via co-sputtering of separate targets. The effects of the sputtering power during co-sputtering on the structural, optical, electrical, and chemical properties of the HAZO films were examined. As the sputtering power increased, the structure of the HAZO films changed from polycrystalline to amorphous, and the HfO bonds in the HAZO films increased, but the ZnO bonds decreased. Also, a bottom-gate-type thin-film transistor (TFT) using the HAZO film as its channel layer was fabricated and characterized. The TFTs using HAZO layer at room temperature as channel layer exhibited the device characteristics, such as a field effect mobility of 0.45 cm2/V·s, a threshold voltage of 17.18 V, a subthreshold swing of 0.85 V/decade, an on/off current ratio of 3.68 Ã 107, and a visible transmittance of 82.7%. It was discovered that the changes of the electrical characteristics of the HAZO TFTs were closely related to the changes of the ZnO/HfO bonding ratio.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 620, 1 December 2016, Pages 82-87
Journal: Thin Solid Films - Volume 620, 1 December 2016, Pages 82-87
نویسندگان
Sang-Hyuk Lee, Hyun-Sik Jun, Ju-Hee Park, Won Kim, Saeroonter Oh, Jin-Seok Park,