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作者Chang, Ting-Hao;Liao, Chen-Pan;Tsai, Jen-Ching;Lee, Chun-Yi;Hwang, Jenn-Chang;Tso, I-Min;Chueh, Yu-Lun;Lyu, Ping-Chiang;Gan, Jon-Yiew
出版日期201404
著作名稱Natural polyelectrolyte: Major ampullate spider silk for electrolyte organic field-effect transistors
刊名Organic Electronics
15
4
頁數954-960
被收錄索引SCI
主題動物
關鍵字Ampullate silk, Spider, OFET, Dielectric, Polyelectrolyte
摘要The major ampullate (MA) silk collected from giant wood spiders Nephila pilipes consists of 12% glutamic acid (Glu) and 4% tyrosine (Tyr) acidic amino residues. The MA silk may act as a natural polyelectrolyte for organic field-effect transistors (OFETs). Pentacene and F16CuPc OFETs were fabricated with the MA silk thin film as the gate dielectric. The MA silk thin film with surface roughness of 4nm and surface energy of 36.1mJ/m2 was formed on glass using a hexafluoroisopropanol (HFIP) organic process. The MA silk gate dielectric in pentacene OFETs may improve the field-effect mobility (μFE,sat) value in the saturation regime from 0.11 in vacuum to 4.3cm2V−1s−1 in air ambient at ca. 70% RH. The corresponding threshold voltage (VTH) value reduced from −6V in vacuum to −0.5V in air ambient. Similar to other polyelectrolytes, the changes of μFE,sat and VTH may be explained by the generation of electric double layers (EDLs) in the MA silk thin film in air ambient due to water absorption.
資料連結Full Text
DOIhttps://doi.org/10.1016/j.orgel.2014.02.002
系統號NO000004531

May 10 2024 17:17:25
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