High Detectivity Near Infrared Organic Photodetectors Using an Asymmetric Non-Fullerene Acceptor for Optimal Nanomorphology and Suppressed Dark Current

Jong-Woon Ha, Ah Young Lee, Hyeong Ju Eun, Jae-Hyun Kim, Hyungju Ahn, Sungjun Park, Changjin Lee, Deok Won Seo, Junseok Heo, Sung Cheol Yoon, Seo-Jin Ko, and Jong H. Kim 

ACS Nano 2023 17 (19), 18792-18804, DOI: 10.1021/acsnano.3c03171

Novel SHAL base derived cobalt containing organic semiconducting metallogel thin film for self-powered high-performance photodetector application  

Vinay Kumar Pandey, Young Hoon Kim, Hwayong Choi, Mrigendra Dubey, Sayad Hadi Hasan, Junseok Heo, Rajiv Kumar Pandey 

Optical Materials 143, 114178(2023), DOI: https://doi.org/10.1016/j.optmat.2023.114178

Facile controlled synthesis of bifunctional ZnO nanoparticles for application as a high-performance self-powered UV photosensor and highly selective vapor sensor

Rajiv Kumar Pandey, Hwayong Choi, Junsin Yi, Junseok Heo, Praveen Kumar Sahu

Materials Science and Engineering: B 293, 116470 (2023), DOI: 10.1016/j.mseb.2023.116470

Cationic Molecular Metal Chalcogenide Ligand-Passivated Colloidal Quantum Dots and Their Application to Suppressed Dark-Current Near-Infrared Photodetectors

Haewoon Seo, Hyeong Ju Eun, Donghyeuk Choi, Hyon Bin Na, Yeongseok Shim, Junseok Heo, Kyung-Sang Cho, Jong H Kim, Sang-Wook Kim

Advanced Materials Technologies, 2201864 (2023), DOI: 10.1002/admt.202201864

Effect of Cyano Substitution on Non-Fullerene Acceptor for Near-Infrared Organic Photodetectors above 1000 nm

Jong-Woon Ha, Hyeong Ju Eun, Byoungwook Park, Hyungju Ahn, Dong Ryeol Hwang, Yeong Seok Shim, Junseok Heo, Changjin Lee, Sung Cheol Yoon, Jong H Kim, Seo-Jin Ko

Advanced Functional Materials 33(8), 2370042 (2023), DOI: 10.1002/adfm.202370042

Ultrahigh photoresponse in strain-and domain-engineered large-scale MoS 2 monolayer films

Ye Seul Jung, Jae Woo Park, Ji Yeon Kim, Youngseo Park, Dong Gue Roe, Junseok Heo, Jeong Ho Cho, Yong Soo Cho*

Journal of Materials Chemistry A (2023), DOI: 10.1039/D3TA00642E

Achieving Highly Sensitive Near-Infrared Organic Photodetectors using Asymmetric Non-Fullerene Acceptor

Un-Hak Lee, Byoungwook Park, Seunghyun Rhee, Jong-Woon Ha, Dong Ryeol Whang, Hyeong Ju Eun, Jong H Kim, Yeongseok Shim, Junseok Heo, Changjin Lee, Bumjoon J Kim, Sung Cheol Yoon, Jaewon Lee, Seo-Jin Ko

Advanced Optical Materials/Early View/2300312 (2023), DOI:10.1002/adom.202300312

Large-area metal surface plasmon polymer coupled nanocomposite thin film at air liquid interface for low voltage operated high-performance photodetector

Manish Kumar Singh, Richa Mishra, Rajiv Prakash, Junsin Yi, Junseok Heo,* Rajiv Kumar Pandey*

Progress in Organic Coatings 174, 107231 (2023), DOI: 10.1016/j.porgcoat.2022.107231

In-sensor image memorization and encoding via optical neurons for bio-stimulus domain reduction toward visual cognitive processing

Doeon Lee, Minseong Park, Yongmin Baek, Byungjoon Bae, Junseok Heo,* and Kyusang Lee*

Nature Communications 13, 5223 (2022), DOI: 10.1038/s41467-022-32790-3

Reconfigurable Radio-Frequency High-Electron Mobility Transistors via Ferroelectric-Based Gallium Nitride Heterostructure

Jeong Yong Yang, Min Jae Yeom, Jaeyong Lee, Kyusang Lee, Changkun Park,* Junseok Heo,* and Geonwook Yoo*

Advanced Electronic Materials 8, 2101406 (2022), DOI: 10.1002/aelm.202101406

Strain-durable dark current in near-infrared organic photodetectors for skin-conformal photoplethysmographic sensors

Hyeong Ju Eun, Hanbee Lee, Yeongseok Shim, Gyeong Uk Seo, Ah Young Lee, Jong Jin Park, Junseok Heo, Sungjun Park,* and Jong H. Kim*

iScience 25, 104194 (2022), DOI:10.1016/j.isci.2022.104194

Origin of the anisotropic-strain-driven photoresponse enhancement in inorganic halide-based self-powered flexible photodetectors

Da Bin Kim, Ju Han, Ye Seul Jung, Kwan Sik Park, Youngseo Park, Junseok Heo and Yong Soo Cho*

Materials Horizons 9, 1207 (2022), DOI: 10.1039/D1MH02055B

Mid-infrared photon sensing using InGaN/GaN nanodisks via intersubband absorption

Zhang Xing, Afroja Akter, Hyun S Kum, Yongmin Baek, Yong-Ho Ra, Geonwook Yoo, Kyusang Lee, Zetian Mi, Junseok Heo*

Scientific reports 12, 4301 (2022), DOI: 10.1038/s41598-022-08323-9?

Albedo-Enabled Enhanced Energy Harvesting via GaAs Bifacial Thin-Film Solar Cells

Zhang Xing, Seonghyun Nam, Dahee Kim, Yongmin Baek, Dohyun Kim, Youngseo Park, Hsin-Ying Lee, Ching-Ting Lee, Kyusang Lee*, Junseok Heo*

Advanced Photonics Research, 2100297 (2022), DOI: 10.1002/adpr.202100297

Visible and Infrared Dual-band Imaging via Ge/MoS₂ van der Waals Heterostructure

Aujin Hwang, Minseong Park, Youngseo Park, Yeongseok Shim, Sukhyeong Youn, Chan-Ho Lee, Han Beom Jeong, Hu Young Jeong, Jiwon Chang, Kyusang Lee,* Geonwook Yoo,* and Junseok Heo*

Science Advances 7, eabj2521 (2021), DOI: 10.1126/sciadv.abj2521

Low Subthreshold Slope AlGaN/GaN MOS-HEMT with Spike-Annealed HfO₂ Gate Dielectric

Min Jaeo Yeom, Jeong Yong Yang, Chan Ho Lee, Junseok Heo, Roy Byung Kyu Chung,* and Geonwook Yoo*

Micromachines 12, 1441 (2021), DOI: 10.3390/mi12121441

Design of p-WSe₂/n-Ge Heterojunction for High-Speed Broadband Photodetectors

Chan Ho Lee, Youngseo Park, Sukhyeong Youn, Min Jae Yeom, Hyun S. Kum, Jiwon Chang, Junseok Heo,* and Geonwook Yoo*

Advanced Functional Materials, 2107992 (2021), DOI: 10.1002/adfm.202107992 

Ferroelectric α-In₂Se₃ Wrapped-Gate β-Ga₂O₃ Field-Effect Transistors for Dynamic Threshold Voltage Control

Jeong Yong Yang, Min Jae Yeom, Youngseo Park, Junseok Heo,* and Geonwook Yoo*

Advanced Electronic Materials 7, 2100306 (2021), DOI: 10.1002/aelm.202100306

Effective Dark Current Suppression for High-Detectivity Organic Near-Infrared Photodetectors Using a Non-Fullerene Acceptor

Hyeong Ju Eun, Hyojin Kye, Dahee Kim, In Su Jin, Jae Woong Jung, Seo-Jin Ko, Junseok Heo,* Bong-Gi Kim,* and Jong H. Kim*

ACS Applied Materials & Interfaces 13, 11144(2021), DOI: 10.1021/acsami.0c22808

Interface Trap-Induced Temperature Dependent Hysteresis and Mobility in β-Ga₂O₃ Field-Effect Transistors

Youngseo Park, Jiyeon Ma, Geonwook Yoo,* and Junseok Heo*

Nanomaterials 11, 494 (2021), DOI: 10.3390/nano11020494