標題: | A cascade energy band structure enhances the carrier energy in organic vertical-type triodes |
作者: | Cheng, Shiau-Shin Ramesh, Mohan Chen, Guan-Yuan Fung, Chun-Lin Chen, Li-Ming Wu, Meng-Chyi Lin, Hong-Cheu Chu, Chih-Wei 材料科學與工程學系 光電工程學系 Department of Materials Science and Engineering Department of Photonics |
關鍵字: | Organic semiconductor;Vertical-type transistor;Cascade-type;Transport factor;Current gain;Current mirror |
公開日期: | 1-Sep-2013 |
摘要: | Organic vertical-type triodes (OVTs) based on the cascade energy band structure as emitter layer are studied. The electric characteristics were dramatically enhanced while incorporating the cascade energy under current driving and voltage driving modes. The improvement is attributed to that injection carriers can obtain higher energy through a stepwise energy level. When the device has a layered structure of F16CuPC (10 nm)/PTCDI (10 nm)/pentacene (100 nm) in emitter, it exhibits a common-base transport factor of 0.99 and a common-emitter current gain of 225 under current driving mode and exhibits a high current modulation-exceeding -520 mu A for a low collector voltage of -5 V and a base voltage of -5 V and the current on/off ratio of 10(3) under voltage driving mode. Furthermore, we realized first organic current mirror that exhibited out/in current ratio of 0.75 and output resistance of 10(5) Omega by using the OVTs. (C) 2013 Published by Elsevier B.V. |
URI: | http://dx.doi.org/10.1016/j.orgel.2013.05.018 http://hdl.handle.net/11536/22111 |
ISSN: | 1566-1199 |
DOI: | 10.1016/j.orgel.2013.05.018 |
期刊: | ORGANIC ELECTRONICS |
Volume: | 14 |
Issue: | 9 |
起始頁: | 2284 |
結束頁: | 2289 |
Appears in Collections: | Articles |
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