• Effect of UVO Treatment on Optical and Electrical Properties of NiOx Thin Film and Perovskite Solar Cells

    UVO 처리에 따른 NiOx 박막 및 페로브스카이트 태양전지 셀 특성 변화

    Sujin Cho, Jae-Keun Hwang, Dowon Pyun, Seok Hyun Jeong, Solhee Lee, Wonkyu Lee, Ji-Seong Hwang, Youngho Choe, Donghwan Kim

    조수진, 황재근, 편도원, 정석현, 이솔희, 이원규, 황지성, 최영호, 김동환

    Perovskite solar cells have exhibited a remarkable increase in efficiency from an initial 3.8% to 26.1%, marking a significant advancement. However, challenges … + READ MORE
    Perovskite solar cells have exhibited a remarkable increase in efficiency from an initial 3.8% to 26.1%, marking a significant advancement. However, challenges persist in the commercialization of perovskite solar cells due to their low stability with respect to humidity, light exposure, and temperature. Moreover, the instability of the organic charge transport layer underscores the need for exploring inorganic alternatives. In the manufacturing process of the perovskite solar cells' oxide charge transport layer, ultraviolet-ozone (UVO) treatment is commonly applied to enhance the wettability of the perovskite solution. The UVO treatment on metal oxides has proven effective in suppressing surface oxygen vacancies and removing surface organic contaminants. This study focused on the characterization of nickel oxide as the hole transport material in perovskite solar cells, specifically investigating the impact of UVO treatment on film properties. Through this analysis, changes induced by the UVO treatment were observed, and consequent alterations in the device characteristics were identified. - COLLAPSE
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    31 March 2024
  • Study of Light-induced Effect on Silicon Solar Cell from Wafer to Cell: A Review

    광조사에 의한 실리콘 태양전지 열화 연구

    MyeongSeob Sim, Dongjin Choi, Myeongji Woo, Ji Woo Sohn, Youngho Choe, Donghwan Kim

    심명섭, 최동진, 우명지, 손지우, 최영호, 김동환

    The efficiency of silicon solar cells is approaching a theoretical limit referred to as ‘the state of the art’. Consequently, maintaining efficiency … + READ MORE
    The efficiency of silicon solar cells is approaching a theoretical limit referred to as ‘the state of the art’. Consequently, maintaining efficiency is more productive than pursuing improvements the last room for limiting efficiency. One of the primary considerations in silicon module conservation is the occurrence of failures and degradation. Degradation can be mitigated during the cell manufacturing stage, unlike physical and spontaneous failure. It is mostly because the chemical reaction is triggered by the carrier generation of thermal and light injection, an inherent aspect of the solar cell environment. Therefore, numerous researchers and cell manufacturers are engaged in implementing mitigation strategies based on the physical degradation mechanism. - COLLAPSE
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    31 March 2024
  • Durability Evaluation Study of Re-manufactured Photovoltaic Modules

    재 제조 태양광모듈의 내구성능 평가 연구

    Kyung Soo Kim

    김경수

    Photovoltaic (PV) power generation is the world’s best and largest renewable energy that generates electricity with infinite sunlight. Solar cell modules are … + READ MORE
    Photovoltaic (PV) power generation is the world’s best and largest renewable energy that generates electricity with infinite sunlight. Solar cell modules are a component of photovoltaic power generation and must have a long-term durability of at least 25 years. The development of processes and equipment that can be recovered through the recycling of metals and valuable metals when the solar module’s lifespan is over has been completed to the level of commercialization, but few processes have been developed that require repair due to initial defects. This is mainly due to the economic problems caused by remaking. However, if manufacturing processes such as repairing solar cell modules that have been proven to be early defects are established and the technical review of long-term reliability and durability reaches a certain level, it is considered that it will be a recommended process technology for environmental economics. In this paper, assuming that a defective solar cell module occurs artificially, a manufacturing process for replacement of solar cells was developed, and a technical verification of the manufacturing technology was conducted through long-term durability evaluation in accordance with KS C 8561. Through this, it was determined that remanufacturing technology for solar cell replacement of solar cell modules that occurred in a short period of time after installation was possible, and the research results were announced through a journal to commercialize solar modules using manufacturing technology in the solar market in the future. - COLLAPSE
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    31 March 2024
  • Development of Light Distributed Solar Modules for Growing Sprout Ginseng and Overseas Empirical Research on Natural Lighting Cultivation System

    새싹인삼 재배를 위한 투광 분산형 태양광 모듈 개발 및 자연채광 재배시스템 해외 실증연구

    Seong-Hwan Kang, Jae-ho Choi, In-Sung Jung, Gyeong-Yeol Lim, Jae-Woo Park, Nguyen Huu Hoang, Chong-Yeal Kim

    강성환, 최재호, 정인성, 임경열, 박재우, 응우옌 후 호앙, 김종일

    To create an environment for growing ginseng sprouts, we developed a solar module that partially transmits and disperses light. A G to … + READ MORE
    To create an environment for growing ginseng sprouts, we developed a solar module that partially transmits and disperses light. A G to G type light transmission and dispersion solar module was developed using glass with a mist pattern applied, and the light dispersion effect of the developed module was confirmed through illuminance measurement. The output of one module is approximately 260 W, and the configuration consists of 48 cells in series in 4 strings. The cultivation system where the developed module will be installed was developed in the form of a container, and three units of 2.6 kW (260 W x 10 EA). The inside of the cultivation system consists of a shading screen, air conditioner, ventilator, plastic pot, etc. to create an environment for cultivating sprout ginseng. As a result of actually planting sprout ginseng, it was confirmed through verification that the plants were grown without any problems. - COLLAPSE
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    31 March 2024
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