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http://hdl.handle.net/1942/12039
Title: | Effects of hole and electron trapping on organic field-effect transistor transfer characteristic | Authors: | BOLSEE, Jean-Christophe MANCA, Jean |
Issue Date: | 2011 | Publisher: | ELSEVIER SCIENCE SA | Source: | SYNTHETIC METALS, 161 (9-10). p. 789-793 | Abstract: | Routine organic field-effect transistor measurements are performed at negative and positive gate voltages leading to the occurrence of both hole and electron trapping. Despite this fact, the big majority of studies have focused either on hole trapping or on electron trapping but not on both at the same time. This paper presents the influences of trapped electron concentration n(trap) and trapped hole concentration p(trap) on the transfer characteristic (TC) features: onset voltage, hysteresis and transconductance, i.e. apparent mobility. Some effects are common to both charge types: (1) hysteresis is due to a combination of lower detrapping rate than sweep rate for n(trap) and p(trap), (2) the transconductance is decreased by the super-linear V-G dependence of p(trap) and by n(trap) detrapping. One effect is opposite to both charge types: p(trap) (n(trap)) shifts the onset voltage towards negative (positive) value. We consider that the knowledge of trap-induced effects from both charge types is useful for correctly interpreting and understanding TCs. (C) 2011 Elsevier B.V. All rights reserved. | Notes: | [Bolsee, Jean-Christophe; Manca, Jean] Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium. [Bolsee, Jean-Christophe; Manca, Jean] IMEC IMOMEC, B-3590 Diepenbeek, Belgium. jeanchristophe.bolsee@uhasselt.be | Keywords: | Hole trapping; Electron trapping; Organic transistor; Transfer characteristic;Hole trapping; Electron trapping; Organic transistor; Transfer characteristic | Document URI: | http://hdl.handle.net/1942/12039 | ISSN: | 0379-6779 | e-ISSN: | 0379-6779 | DOI: | 10.1016/j.synthmet.2011.01.031 | ISI #: | 000291832800022 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2012 |
Appears in Collections: | Research publications |
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