https://scholar.dgist.ac.kr/handle/20.500.11750/10136 2026-04-09T17:31:45Z https://scholar.dgist.ac.kr/handle/20.500.11750/60147 Title: 경사형 박막 태양전지 Author(s): 양기정; 김삼미; 김대환; 김세윤; 안광석; 강진규 Abstract: 기판 바닥면에 대하여 제1 각도로 기울어진 표면을 가지는 적어도 하나 이상의 제1 면 및 상기 제1 면에 인접하여 위치하며 다음 기울어진 표면과 연결되는 제2 각도로 기울어진 표면을 가지는 적어도 하나 이상의 제2 면을 포함하는 기판; 상기 기판의 표면에 형성된 제1 전극; 상기 제1 전극 상에 형성된 광흡수층; 및 상기 광흡수층 상에 형성된 제2 전극;을 포함하는 경사형 박막 태양전지가 개시된다. https://scholar.dgist.ac.kr/handle/20.500.11750/60143 Title: 평면성이 확장된 자가조립 물질 및 이를 포함하는 태양전지 Author(s): 김서영; 김대환; 김재홍; 조효정 https://scholar.dgist.ac.kr/handle/20.500.11750/60098 Title: MelumiTac: Vision-based Tactile Sensor Using Mechanoluminescence for Dynamic Tactile and Nociceptive Perception Author(s): Bae, Sunggyu; Song, Seongkyu; Jeong, Soon Moon; Park, Kyungseo Abstract: This paper presents MelumiTac, a vision-based tactile (ViTAC) sensor enhanced with mechanoluminescent (ML) materials that emit green light under dynamic tactile stimuli. The integration of an ML elastomer generates self-illumination in response to dynamic tactile stimuli, enabling direct visualization of both dynamic tactile events and nociceptive responses while simultaneously tracking deformation in real-time. Experimental evaluations involving cyclic loading, in-plane motion, and piercing reveal a strong correlation between ML emission, stress rate, and localized deformation, thereby validating its multi-modal tactile sensing capabilities. Additionally, frame-by-frame analysis offers rich insights into the contact dynamics during physical interactions. These improvements, implemented within a small form factor of conventional ViTac sensor, render the approach highly accessible. Thus, we expect that the proposed solution will offer practical and unique advantages to engineers developing and applying vision-based multi-modal tactile sensors. 2025-10-21T15:00:00Z https://scholar.dgist.ac.kr/handle/20.500.11750/60087 Title: Strategic interfacial layers for enhanced charge transport in Sb2Se3 solar cells Author(s): Lim, Geumha; Hoang, Van-Quy; Lee, Jaebaek; Kang, Jin-Kyu; Yang, Kee-Jeong; Sung, Shi-Joon; Kim, Dae-Hwan; Jo, William Abstract: This study demonstrates the enhancement of charge transport properties in Sb2Se3 solar cells through the introduction of interfacial interlayers. MoSe2 and SnOx were selected and optimized as an interlayer for back and front interface, respectively. The improved ohmic contact quality at the back interface was revealed, along with the preferential growth of Sb2Se3, leading to the reduction of carrier recombination. The effect of SnOx on interfacial carrier extraction between the absorber and buffer layer was discussed with the changes in surface potential distribution and energy band structure of CdS buffer layer. With both interlayers, the best cell achieved 6.247% PCE, recording the highest performance for co-evaporation processed Sb2Se3 solar cells and highlighting the importance of interface engineering in device optimization. 2025-06-10T15:00:00Z