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Daegu Gyeongbuk Institute of Science and Technology (DGIST)

3 ARTICLES PUBLISHED IN JoVE

Chemistry

Key Factors Affecting the Performance of Sb₂S₃-sensitized Solar Cells During an Sb₂S₃ Deposition via SbCl₃-thiourea Complex Solution-processing

Yong Chan Choi¹, Sangl Il Seok², Eunjeong Hwang¹, Dae-Hwan Kim¹

¹Convergence Research Center for Solar Energy, Daegu Gyeongbuk Institute of Science and Technology (DGIST), ²Perovtronics Research Center, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST)

This work provides a detailed experimental procedure for the deposition of Sb₂S₃ on a mesoporous TiO₂ layer using a SbCl₃-thiourea complex solution for applications in Sb₂S₃-sensitized solar cells. This article also determines key factors governing the deposition process.

Chemistry

Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers

Jae Taek Oh^1,2, Dae-Hwan Kim¹, Younghoon Kim¹

¹Convergence Research Center for Solar Energy, Daegu Gyeongbuk Institute of Science and Technology (DGIST), ²Department of Chemistry and Research Institute for Convergence of Basic Sciences, Hanyang University

Herein, we present detailed protocols for solution-processed silver-bismuth-iodine (Ag-Bi-I) ternary semiconductor thin films fabricated on TiO₂-coated transparent electrodes and their potential application as air-stable and lead-free optoelectronic devices.

Engineering

Study of a Dot-patterning Process on Flexible Materials using Impact Print-Type Hot Embossing Technology

Myeongjin Kim¹, Jaewon Ahn¹, Junseong Bae¹, Jinhyeok Song¹, Donghyun Kim¹, Dongwon Yun¹

¹Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST)

Impact print-type hot embossing technology uses an impact header to engrave dot patterns on flexible materials in real time. This technology has a control system for controlling the on-off motion and position of the impact header to create dot patterns with various widths and depths on different polymer films.