Charge Transport Advancement in Anti‐Ambipolar Transistors: Spatially Separating Layer Sandwiched between N‐Type Metal Oxides and P‐Type Small Molecules

Y Han, S Lee, M Kim, W Shin, H Lee… - Advanced Functional …, 2024 - Wiley Online Library
Interface issues with organic semiconductors on metal oxide challenge realizing a high‐
performance anti‐ambipolar transistor (AAT) with stable operation. The motivation behind …

Identifying key transport mechanisms in organic antiambipolar transistors

CH Kim, H Yoo - Advanced Electronic Materials, 2021 - Wiley Online Library
Antiambipolar current is an enabling feature for a wide range of unconventional devices. At
the same time, it still remains as a new phenomenon without sufficiently deep …

Recent progress in organic antiambipolar transistor development: fundamentals and applications

Y Wakayama, CH Kim, D Panigrahi… - Materials Advances, 2022 - pubs.rsc.org
This paper briefly reviews recent progress in antiambipolar transistor (AAT) development. A
variety of semiconducting materials, such as two-dimensional (2D) atomic layers, carbon …

Device geometry engineering for controlling organic antiambipolar transistor properties

K Kobashi, R Hayakawa, T Chikyow… - The Journal of …, 2018 - ACS Publications
The key concept behind this study is the use of “geometry engineering” to elucidate the
carrier transport path and to control the device properties of organic antiambipolar …

Antiambipolar transistor: A newcomer for future flexible electronics

Y Wakayama, R Hayakawa - Advanced Functional Materials, 2020 - Wiley Online Library
An antiambipolar transistor exhibits a steep increase and decrease in drain current within a
certain range of gate bias voltage. This unique feature is brought about by a partially stacked …

Carrier‐Transport Mechanism in Organic Antiambipolar Transistors Unveiled by Operando Photoemission Electron Microscopy

R Hayakawa, S Takeiri, Y Yamada… - Advanced …, 2022 - Wiley Online Library
Organic antiambipolar transistors (AATs) have partially overlapped p–n junctions. At room
temperature, this p–n junction induces a negative differential transconductance in an AAT …

Surface potential visualization in organic antiambipolar transistors using operando Kelvin probe force microscopy for understanding the comprehensive carrier …

R Hayakawa, S Takeiri, Y Yamada… - Advanced Materials …, 2023 - Wiley Online Library
An antiambipolar transistor (AAT) exhibits a negative differential transconductance (NDT)
due to a partially overlapped p–n junction formed in the transistor channel. However, the …

Revealing the origin of magnetoresistance in unipolar amorphous organic field-effect transistors

C Isenberg, TPI Saragi - Journal of Materials Chemistry C, 2014 - pubs.rsc.org
We report on the magnetoresistance (MR) effect in a unipolar p-channel field-effect transistor
based on amorphous thin film of low molecular weight 2, 2′, 7, 7′-tetrakis (diphenylamino) …

Low temperature, solution-processed ambipolar field-effect transistors based on polymer/self-assembled monolayer modified InOx hybrid structures for balanced hole …

S Sun, Y Li, L Lan, P Xiao, Z Chen, Z Lin, J Chen… - Organic …, 2017 - Elsevier
Ambipolar field-effect transistors (FETs) based on solution-processed organic-inorganic
bilayer structures were investigated. An amorphous indium oxide (InO x) film, as the n-type …

Toward Understanding Temperature and Bias Instabilities of Anti‐ambipolar Transistors via Low‐Frequency Noise Spectroscopy

J Song, Y Han, RH Koo, J Seo, H Yoo, W Shin - Small, 2024 - Wiley Online Library
Anti‐ambipolar transistors (AATs) featuring heterojunctions of n‐and p‐type semiconductors
have garnered significant research interest owing to their unique electrical characteristics …