Increased mobility and on/off ratio in organic field-effect transistors using low-cost guanine-pentacene multilayers
Abstract
Layer-by-layer deposited guanine and pentacene in organic field-effect transistors (OFETs) is introduced. Through adjusting the layer thickness ratio of guanine and pentacene, the tradeoff of two electronic parameters in OFETs, charge carrier mobility and current on/off ratio, was controlled. The charge mobility was enhanced by depositing pentacene over and between guanine layers and by increasing the proportion of pentacene in the layer-by-layer system, while the current on/off ratio was increased via the decreased off current induced by the guanine layers. The tunable device performance was mainly ascribed to the trap and dopant neutralizing properties of the guanine layers, which would decrease the density of free hydroxyl groups in the OFETs. Furthermore, the cost of the devices could be reduced remarkably via the adoption of low-cost guanine.
- Authors:
-
- Johns Hopkins Univ., Baltimore, MD (United States); Univ. of Electronic Science and Technology of China, Chengdu (China)
- Univ. of Electronic Science and Technology of China, Chengdu (China); Yale Univ., New Haven, CT (United States)
- Yale Univ., New Haven, CT (United States)
- Univ. of Electronic Science and Technology of China, Chengdu (China)
- Johns Hopkins Univ., Baltimore, MD (United States)
- Publication Date:
- Research Org.:
- Johns Hopkins Univ., Baltimore, MD (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1535332
- Grant/Contract Number:
- FG02-07ER46465
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 111; Journal Issue: 4; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; Physics
Citation Formats
Shi, Wei, Zheng, Yifan, Taylor, André D., Yu, Junsheng, and Katz, Howard E. Increased mobility and on/off ratio in organic field-effect transistors using low-cost guanine-pentacene multilayers. United States: N. p., 2017.
Web. doi:10.1063/1.4995251.
Shi, Wei, Zheng, Yifan, Taylor, André D., Yu, Junsheng, & Katz, Howard E. Increased mobility and on/off ratio in organic field-effect transistors using low-cost guanine-pentacene multilayers. United States. https://doi.org/10.1063/1.4995251
Shi, Wei, Zheng, Yifan, Taylor, André D., Yu, Junsheng, and Katz, Howard E. Mon .
"Increased mobility and on/off ratio in organic field-effect transistors using low-cost guanine-pentacene multilayers". United States. https://doi.org/10.1063/1.4995251. https://www.osti.gov/servlets/purl/1535332.
@article{osti_1535332,
title = {Increased mobility and on/off ratio in organic field-effect transistors using low-cost guanine-pentacene multilayers},
author = {Shi, Wei and Zheng, Yifan and Taylor, André D. and Yu, Junsheng and Katz, Howard E.},
abstractNote = {Layer-by-layer deposited guanine and pentacene in organic field-effect transistors (OFETs) is introduced. Through adjusting the layer thickness ratio of guanine and pentacene, the tradeoff of two electronic parameters in OFETs, charge carrier mobility and current on/off ratio, was controlled. The charge mobility was enhanced by depositing pentacene over and between guanine layers and by increasing the proportion of pentacene in the layer-by-layer system, while the current on/off ratio was increased via the decreased off current induced by the guanine layers. The tunable device performance was mainly ascribed to the trap and dopant neutralizing properties of the guanine layers, which would decrease the density of free hydroxyl groups in the OFETs. Furthermore, the cost of the devices could be reduced remarkably via the adoption of low-cost guanine.},
doi = {10.1063/1.4995251},
journal = {Applied Physics Letters},
number = 4,
volume = 111,
place = {United States},
year = {Mon Jul 24 00:00:00 EDT 2017},
month = {Mon Jul 24 00:00:00 EDT 2017}
}
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