TY - JOUR
T1 - High-Performance Static Induction Transistors Based on Small-Molecule Organic Semiconductors
AU - Guo, Erjuan
AU - Xing, Shen
AU - Dollinger, Felix
AU - Wu, Zhongbin
AU - Tahn, Alexander
AU - Löffler, Markus
AU - Leo, Karl
AU - Kleemann, Hans
N1 - Publisher Copyright:
© 2020 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/9/1
Y1 - 2020/9/1
N2 - The polymeric organic-static-induction transistor (OSIT), a solid-state vacuum triode, has been extensively studied as a promising vertical organic thin-film transistor. By utilizing polymers as organic semiconductors in OSITs, important performance figures have been achieved, for example, a maximum on-current output of about 10 mA cm−2, on/off current ratio as high as 105, and a large current gain of 1000. However, even though polymers with higher mobility have been developed, the performance of OSITs has not been significantly improved yet. In this work, record-high performance OSITs with small-molecule materials as organic semiconductors are demonstrated. Pentacene as a hole-transport material for p-type OSITs can be easily deposited into pinholes of the gate electrode, hence creating effective conducting channels. Excellent characteristics, such as a high on-current greater than 260 mA cm−2, on/off current ratio up to 3.3 × 105, and a large transmission factor of 99.98% as well as high current gain of 7965, are attained. These results make the small-molecule organic semiconductor a candidate material for vertical OSITs as well as for organic electronics.
AB - The polymeric organic-static-induction transistor (OSIT), a solid-state vacuum triode, has been extensively studied as a promising vertical organic thin-film transistor. By utilizing polymers as organic semiconductors in OSITs, important performance figures have been achieved, for example, a maximum on-current output of about 10 mA cm−2, on/off current ratio as high as 105, and a large current gain of 1000. However, even though polymers with higher mobility have been developed, the performance of OSITs has not been significantly improved yet. In this work, record-high performance OSITs with small-molecule materials as organic semiconductors are demonstrated. Pentacene as a hole-transport material for p-type OSITs can be easily deposited into pinholes of the gate electrode, hence creating effective conducting channels. Excellent characteristics, such as a high on-current greater than 260 mA cm−2, on/off current ratio up to 3.3 × 105, and a large transmission factor of 99.98% as well as high current gain of 7965, are attained. These results make the small-molecule organic semiconductor a candidate material for vertical OSITs as well as for organic electronics.
KW - colloidal lithography
KW - organic-static-induction transistors
KW - small molecules
KW - space-charge-limited current
KW - vertical organic transistors
UR - http://www.scopus.com/inward/record.url?scp=85087928055&partnerID=8YFLogxK
U2 - 10.1002/admt.202000361
DO - 10.1002/admt.202000361
M3 - 文章
AN - SCOPUS:85087928055
SN - 2365-709X
VL - 5
JO - Advanced Materials Technologies
JF - Advanced Materials Technologies
IS - 9
M1 - 2000361
ER -