Large-area non-close-packed nanosphere deposition by blade coating for vertical space-charge-limited transistor
نویسندگان
چکیده
1566-1199/$ see front matter 2012 Elsevier B.V http://dx.doi.org/10.1016/j.orgel.2012.09.013 ⇑ Corresponding authors. E-mail addresses: [email protected] (H.-F mail.nctu.edu.tw (H.-W. Zan). In this work, we proposed a fast and controllable blade coating process to form non-closepacked nanosphere structures. We investigated the key to obtain well-distributed nonclose-packed PS spheres with blade coating. We utilized the blade-coated nanosphere structure to realize colloidal lithography and fabricate a vertical channel polymer transistor, the space-charge-limited transistor (SCLT). We demonstrated that SCLT utilizing bladecoated nanospheres delivered 13.9 mA/cm at 1.8 V with an on/off current ratio as 45,000. The process of blade-coating nanospheres may facilitate the commercialization of low-cost colloidal lithography. 2012 Elsevier B.V. All rights reserved.
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