PEOPLE

Advanced Devices for Energy Conversion

Members

Jihyung Lee

Ph. D. Candidate
Education

M.S. in School of Electrical Engineering, KAIST (2023)

B.S. in Electrical and Electronics Engineering, Hongik University (2021)

Research interests

Colloidal quantum dots

Optoelectronic devices

Transparent electrodes

Journal Publications 

1. C. Kim†, I. Kozakci†, J. Kim, J. Lee, W. B. Ying, S. Jeong, B. Kim, J.-Y. Lee*, “Dark Current Suppression and Field-Assisted Charge Extraction in Colloidal Quantum Dot Near-Infrared Photodetectors Using Vertically Phase-Separated Polymer Layers”, Advanced Optical Materials, 14, 5, e02664 (2026)

2. S. Lee†, H. Lee†, J. Park, H. Yeo, J. Kim, C. Kim, H. Kim, S. Lee, J. Lee, Y. H. Kim, S. Lee, S. Jeong, W. B. Ying, R.-G. Lee, Y.-H. Kim, and J.-Y. Lee*, “Lead-Free Tin-Based Perovskite LEDs Toward Rec. 2020: Organic Anion Coordination for Oxidation Suppression”, Advanced Science, 13, 2, e11006 (2026)

3. B. Kim†, S. Y. Lee†, H. Ko†, J. Lee, H. Song, S. Cho, Y. H. Kim, M.-H. Lee, and J.-Y. Lee*, “Ultrahigh-gain colloidal quantum dot infrared avalanche photodetectors”, Nature Nanotechnology, 20, 2, 237-245 (2025)

4. J. Lee†, C. Sun†, J. Park†, C. Kim, S. Lee, D. Lee, M.-H. Lee, B. Kim, Y. H. Kim, J. Kim, S. Lee, S. Jeong, W. B. Ying, X. Song, S. Cho, F. Rotermund*, Y.-H. Kim*, and J.-Y. Lee*, “High Efficiency (>10%) AgBiS2 Colloidal Nanocrystal Solar Cells with Diketopyrrolopyrrole-Based Polymer Hole Transport Layer”, Advanced Materials, 37, 5, 2413081 (2025) *Selected as the Hot Topic article of Wiley (two fields of “Solar Cells” and “Surfaces and Interfaces”)*

5. S. Lee†, S. Oh†, S. Han†, D. Lee, J. Lee, Y. Kim, H.-Y. Jeong, J.-W. Lee, M.-H. Lee, W. B. Ying, S. Jeong, S. Lee, J. Kim, Y. H. Kim, B. J. Kim, E.-c. Jeon, T.-S. Kim, S. Cho, and J.-Y. Lee*, “Advancing High-Efficiency, Stretchable Organic Solar Cells: Novel Liquid Metal Electrode Architecture”, Energy & Environmental Science, 17, 22, 8915-8925 (2024)

6. M.-H. Lee†, M. S. Kim†, Y. J. Lee, B. Kim, J.-H. Kim, C. Lee, J. Lee, D.-J. Kim, H. Ko, M. D. Ganji, K. Lee, W. Kim*, and J.-Y. Lee*, “Suppressing Hole Accumulation Through Sub-Nanometer Dipole Interfaces in Hybrid Perovskite/Organic Solar Cells for Boosting Near-Infrared Photon Harvesting”, Advanced Materials, 36, 47, 2411015 (2024)

7. S. Lee​†, J. Kim†, H. Kim, C. Kim, S. Kim, C. Kim, H. Lee, B. Choi, C. Muthu, T. Kim, J. Lee, S. Lee, H. Ihee, and J.-Y. Lee*, "Brightening deep-blue perovskite light-emitting diodes: A path to Rec. 2020", Science Advances, 10, 20, eadn8465 (2024)

8. J. Lee​†, B. Kim†, C. Kim, M.-H. Lee, I. Kozakci, S. Cho, B. Kim, S. Y. Lee, J. Kim, J. Oh, and J.-Y. Lee*, "Unlocking the Potential of Colloidal Quantum Dot/Organic Hybrid Solar Cells: Band Tunable Interfacial Layer Approach", ACS Applied Materials & Interfaces, 15, 33, 39408–39416 (2023)

9. C. Kim​†, I. Kozakci†, S. Y. Lee, B. Kim, J. Kim, J. Lee, B. S. Ma, E. S. Oh, T.-S. Kim, and J.-Y. Lee*, "Quantum Dot-Siloxane Anchoring on Colloidal Quantum Dot Film for Flexible Photovoltaic Cell", Small, 19, 41, 2302195 (2023)


Patents

1. D. Kim, K. Jung, J. Lee, J.-Y. Lee, “Electrode manufacturing method and antenna”, 10-2022-0144389 (2022), Korea (Pending)


Conference presentations

1. J. Lee and J.-Y. Lee, “High efficiency eco-friendly colloidal nanocrystal solar cells with diketopyrrolopyrrole-based hole transport layer”, Global Photovoltaic Conference (2025), Daejeon, Korea (Poster)

2. J. Lee and J.-Y. Lee, “New diketopyrrolopyrrole-based polymer boosts efficient charge transfer of AgBiS2 colloidal nanocrystal solar cells”, Korea Photovoltaic Society (2025), Busan, Korea (Poster)

3. J. Lee and J.-Y. Lee, "Spatial charge manipulation at electron transport layer/colloidal quantum dot interfaces for efficient charge extraction in hybrid solar cells", The Polymer Society of Korea (2024), Jeju, Korea (Poster)

4. J. Lee, S. Cho, and J.-Y. Lee, "Highly efficient quantum dot hybrid solar cell using organic transport layer", Nano korea (2022), Ilsan, Korea (Poster)


Experience, Honors, and Awards 

1. Q-Day Special Student Award (Creative Talent), KAIST (2025)

2. Grand Prize, BK21 Overseas Research Experience Essay Contest, KAIST (2025)

3. Selected for a Ph.D. Student Research Grant, National Research Foundation of Korea (2024.09~2026.08, 2 years)

4. Visiting Student Researcher, Zhenan Bao Group, Stanford University (2024.08~2025.01, 6 months)


E3-2, Rm 6214