- Efficient and stable perovskite solar cells

- Applications: multi-junction tandem solar cells; nanostructured photovoltaics; optical sensors (photodetectors); etc.

Refer to our previous contributions to this field:

K. Yeom†, C. Cho†, et al., "Quantum barriers engineering toward radiative and stable perovskite photovoltaic devices," Nature Communications 15, 4547 (2024)

C. Cho et al., “Efficient Vertical Charge Transport in Polycrystalline Halide Perovskites Revealed by Four-Dimensional Tracking of Charge Carriers,” Nature Materials 21, 1388 (2022)

C. Cho et al., “Effects of Photon Recycling and Scattering in High-Performance Perovskite Solar Cells,” Science Advances 7, eabj1363 (2021)

M. Degani et al., “23.7% Efficient Inverted Perovskite Solar Cells by Dual Interfacial Modification,” Science Advances 7, eabj7930 (2021)

C. Cho et al., “Toward Perfect Light Trapping in Thin-Film Photovoltaic cells: Full Utilization of Dual Characteristics of Light,” Adv. Opt. Mater., 3, 1697 (2015)

- Nanomaterials and novel device designs for future displays

- Nanoscale laser diodes 

Refer to our previous contributions to this field:

C. Cho et al., “Enhanced Photon Recycling Enables Efficient Perovskite Light-Emitting Diodes,” Advanced Functional Materials, 2411556 (2024)

H. -H. Cho et al., "Efficient near-infrared organic light-emitting diodes with emission from spin doublet excitons," Nature Photonics 18, 905 (2024)

L. Kong et al., "Fabrication of red-emitting perovskite LEDs by stabilizing their octahedral structure," Nature 631, 4547 (2024)

Y. Sun et al., “Bright and stable perovskite light-emitting diodes in the near-infrared range,” Nature 615, 830 (2023)

J. S. Kim et al., “Ultra-bright, Efficient and Stable Perovskite Light-Emitting Diodes,” Nature 611, 688 (2022)

C. Cho et al., “Electrical Pumping of Perovskite Diodes: Toward Stimulated Emission,” Advanced Science 8, 2101663 (2021)

C. Cho et al., “The role of photon recycling in perovskite light-emitting diodes,” Nature Communications 11, 1 (2020)

- Study of distinct optical characteristics of emerging semiconductors and energy materials

- Exploring advanced spectroscopy techniques

Refer to our previous contributions to this field:

C. Cho et al., “Efficient Vertical Charge Transport in Polycrystalline Halide Perovskites Revealed by Four-Dimensional Tracking of Charge Carriers,” Nature Materials 21, 1388 (2022)

J. Sung et al., “Long-range ballistic propagation of carriers in methylammonium lead iodide perovskite thin films,” Nature Physics 16, 171 (2020)

C. Cho et al., “Controlling and Optimizing Amplified Spontaneous Emission in Perovskites,” ACS Appl. Mater. Interfaces 12, 35242 (2020)

- Modeling of optics and semiconductor physics

- Artificial intelligence for optoelectronic device designs

Refer to our previous contributions to this field:

C. Cho et al., "Computational Study of Dipole Radiation in Re‐Absorbing Perovskite Semiconductors for Optoelectronics," Advanced Science 8, 2003559 (2021)

C. Cho et al., “The role of photon recycling in perovskite light-emitting diodes,” Nature Communications 11, 1 (2020)

C. Cho et al., “Multi-scale and angular analysis of ray-optical light trapping schemes in thin-film solar cells: Micro lens array, V-shaped configuration, and double parabolic trapper,” Optics Express 21, A276 (2013)