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제128회 대한화학회 학술발표회, 총회 및 기기전시회 Evolution of Sensitization-based Photovoltaic Cells for Diverse Applications with Electrochemistry

2021년 9월 27일 09시 39분 33초
ELEC1-4 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 17시 : 05분
Electrochemistry - Electrochemistry for Post-Li Energy Storages
저자 및
Jae-Joon Lee
Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, Korea
The recent development and the research directions of the sensitization-based photovoltaic cells (DSPV) will be presented.
Since the first emergence of the dye-sensitized solar cells, lots of efforts have been paid for the commercialization of them while the highest attainable efficiency was still limited by far lower than that of the recently reported perovskite type solar cells. Recently, lots of further efforts were paid to enhance the transparency of dye-sensitized solar cells (DSSCs) with various color schemes so that they can be applied to the indoor-type photoenergy conversion/recycling system under very low light intensity condition as well as the conventional BIPV type applications. The current efforts are mostly focused on the diversification of dyes for various colors, development of the highly transparent electrode materials for both photoanode and counter electrode, designing of the highly stable and transparent semi-liquid electrolytes. The recent achievements were designed to make the large area module size up to 100 cm2 with the overall transmittance of 30% and efficiencies of 6, 5, 4 %, for red, green, and blue colored, respectively.
These progresses expanded the application of DSPV to various areas including the development of DSPV-based artificial light cells (ALCs) for harvesting indoor-type low-intensity illumination for many self-powered IoT devices in conjunction with the development of the novel IoT-integrated smart lighting system for complete wireless interconnection as well as charging themselves. Similarly, DSPV system can be extended to develop a self-powered electrochemical biosensors for many smart wearable health care system. Another very challenging extension of this photovoltaic system is dye-sensitized photoelectrochemical energy conversion (DSPEC), which is designed to obtain some value-added fuels and chemicals very effectively and eco-friendly by electrochemical and photoelectrochemical degradation of many waste materials with a large molecular weight such as lignin and different types of micro plastics.