Publications by authors named "Jongtae Ahn"

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Polarization-sensitive in-sensor computing in chiral organic integrated 2D p-n heterostructures for mixed-multimodal image processing.
Je-Jun Lee, Seong-Jun Han, Changsoon Choi, Chaewon Seo, Seungkwon Hwang, Suk-Kyun Ahn, Jongtae Ahn

Nat Commun· May 2025

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Self-Powering Sensory Device with Multi-Spectrum Image Realization for Smart Indoor Environments.
Tae Hyuk Kim, Byoung-Soo Yu, Hyun Woo Ko, Na Won Park, Muhammad Ahsan Saeed, Jongtae Ahn

Adv Mater· January 2024

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Chiral Diketopyrrolopyrrole-Based Conjugated Polymers with Intramolecular Rotation-Isomeric Conformation Asymmetry for Near-Infrared Circularly Polarized Light-Sensing Organic Phototransistors.
Hyemi Han, Jong Ho Choi, Jongtae Ahn, Hanna Lee, Changsoon Choi

ACS Appl Mater Interfaces· December 2023

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Negative Photoresponse Switching via Electron-Hole Recombination at The Type III Junction of MoTe Channel/SnS Top Layer.
Yeonsu Jeong, Taewook Kim, Hyunmin Cho, Jongtae Ahn, Sungjae Hong

Adv Mater· November 2023

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Probing Optical Multi-Level Memory Effects in Single Core-Shell Quantum Dots and Application Through 2D-0D Hybrid Inverters.
Hyun-Soo Ra, Tae Wook Kim, Derrick Allan Taylor, Je-Jun Lee, Seungho Song, Jongtae Ahn

Adv Mater· September 2023

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Chiroptical Synaptic Heterojunction Phototransistors Based on Self-Assembled Nanohelix of π-Conjugated Molecules for Direct Noise-Reduced Detection of Circularly Polarized Light.
Hanna Lee, Jun Ho Hwang, Seung Ho Song, Hyemi Han, Seo-Jung Han, Jongtae Ahn

Adv Sci (Weinh)· September 2023

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Near-field probing of image phonon-polaritons in hexagonal boron nitride on gold crystals.
Sergey G Menabde, Sergejs Boroviks, Jongtae Ahn, Jacob T Heiden, Kenji Watanabe

Sci Adv· July 2022

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SWIR imaging using PbS QD photodiode array sensors.
Sehwan Chang, Junyoung Jin, Jihoon Kyhm, Tae Hwan Park, Jongtae Ahn

Opt Express· June 2022

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Fermi-Level Pinning-Free WSe Transistors via 2D Van der Waals Metal Contacts and Their Circuits.
Jisu Jang, Hyun-Soo Ra, Jongtae Ahn, Tae Wook Kim, Seung Ho Song

Adv Mater· May 2022

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An Asymmetry Field-Effect Phototransistor for Solving Large Exciton Binding Energy of 2D TMDCs.
Hyun-Soo Ra, Jongtae Ahn, Jisu Jang, Tae Wook Kim, Seung Ho Song

Adv Mater· February 2022

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Multilayer WSe /MoS Heterojunction Phototransistors through Periodically Arrayed Nanopore Structures for Bandgap Engineering.
Min-Hye Jeong, Hyun-Soo Ra, Sang-Hyeon Lee, Do-Hyun Kwak, Jongtae Ahn

Adv Mater· February 2022

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Integral imaging using a MoS Schottky diode.
Sungwon Choi, Jongtae Ahn, Il-Ho Ahn, Do Kyung Hwang, Min-Chul Park

Opt Lett· February 2022

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Near-Infrared Self-Powered Linearly Polarized Photodetection and Digital Incoherent Holography Using WSe/ReSe van der Waals Heterostructure.
Jongtae Ahn, Kyul Ko, Ji-Hoon Kyhm, Hyun-Soo Ra, Heesun Bae

ACS Nano· November 2021

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Ambipolar Channel p-TMD/n-Ga O Junction Field Effect Transistors and High Speed Photo-sensing in TMD Channel.
Wonjun Choi, Jongtae Ahn, Ki-Tae Kim, Hye-Jin Jin, Sungjae Hong

Adv Mater· September 2021

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Solution-processed near-infrared Cu(In,Ga)(S,Se) photodetectors with enhanced chalcopyrite crystallization and bandgap grading structure via potassium incorporation.
Joo-Hyun Kim, Hyemi Han, Min Kyu Kim, Jongtae Ahn, Do Kyung Hwang

Sci Rep· April 2021

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Frequency Doubler and Universal Logic Gate Based on Two-Dimensional Transition Metal Dichalcogenide Transistors with Low Power Consumption.
Tae Wook Kim, Hyun Soo Ra, Jongtae Ahn, Jisu Jang, Takashi Taniguchi

ACS Appl Mater Interfaces· February 2021

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Spirally Wrapped Carbon Nanotube Microelectrodes for Fiber Optoelectronic Devices beyond Geometrical Limitations toward Smart Wearable E-Textile Applications.
Hyoungjun Kim, Tae-Hyung Kang, Jongtae Ahn, Hyemi Han, Seongjin Park

ACS Nano· December 2020

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All 2D WSe/MoS heterojunction photodiode and its image sensor application.
Jongtae Ahn, Ji-Hoon Kang, Min-Chul Park, Do Kyung Hwang

Opt Lett· August 2020

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Self-Powered Visible-Invisible Multiband Detection and Imaging Achieved Using High-Performance 2D MoTe/MoS Semivertical Heterojunction Photodiodes.
Jongtae Ahn, Ji-Hoon Kang, Jihoon Kyhm, Hyun Tae Choi, Minju Kim, Dae-Hwan Ahn, Il-Ho Ahn

ACS Appl Mater Interfaces· March 2020

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Impact of H-Doping on n-Type TMD Channels for Low-Temperature Band-Like Transport.
Han Sol Lee, Sam Park, June Yeong Lim, Sanghyuck Yu, Jongtae Ahn

Small· September 2019

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A New Architecture for Fibrous Organic Transistors Based on a Double-Stranded Assembly of Electrode Microfibers for Electronic Textile Applications.
Soo Jin Kim, Hyoungjun Kim, Jongtae Ahn, Do Kyung Hwang, Hyunsu Ju

Adv Mater· June 2019

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High-Responsivity Multilayer MoSe Phototransistors with Fast Response Time.
Hyejoo Lee, Jongtae Ahn, Seongil Im, Jiyoung Kim, Woong Choi

Sci Rep· August 2018

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