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Daegu Gyeongbuk Institute of Science and Technology (DGIST)

3 ARTICLES PUBLISHED IN JoVE

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Chemistry

Key Factors Affecting the Performance of Sb2S3-sensitized Solar Cells During an Sb2S3 Deposition via SbCl3-thiourea Complex Solution-processing
Yong Chan Choi 1, Sangl Il Seok 2, Eunjeong Hwang 1, Dae-Hwan Kim 1
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.

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Chemistry

Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers
Jae Taek Oh 1,2, Dae-Hwan Kim 1, Younghoon Kim 1
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.

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Engineering

Study of a Dot-patterning Process on Flexible Materials using Impact Print-Type Hot Embossing Technology
Myeongjin Kim 1, Jaewon Ahn 1, Junseong Bae 1, Jinhyeok Song 1, Donghyun Kim 1, Dongwon Yun 1
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.

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