期刊
IEEE ELECTRON DEVICE LETTERS
卷 28, 期 1, 页码 42-44出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2006.888191
关键词
Al2O3; HgTe nanocrystal; solution process; thin-film transistor (TFT)
HgTe nanocrystal-based thin-film transistors (TFTs) with Al2O3 top-gate dielectrics were fabricated on glass substrates using sintered HgTe nanocrystals as the channel layers. To the best of our knowledge, this is the first report on the fabrication of nanocrystal-based TFTs on glass substrates. Colloidal HgTe nanocrystal films were first formed on the glass substrates by spin-coating. The HgTe nanocrystal films were then sintered at 150 degrees C, leading to a dramatic increase in their conductance, compared with the as-deposited films. The TFTs fabricated in this letter exhibit the typical characteristics of p-channel transistors with a field-effect mobility of 1.04 cm(2)/V.s, a threshold voltage of +0.2 V, and an ON/OFF current ratio of 1x10(3). These results suggest that spin-coating and sintering at a low temperature enable the simple and low-cost fabrication of nanocrystal-based TFTs on glass substrates.
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