A high voltage photoelectric conversion device comprising of a high voltage electric double-layer capacitor

The present invention relates to high voltage photoelectric conversion device. According to the present invention, an open-circuit voltage, which is limited by the potential difference according to hole diffusion and electron diffusion behavior caused by an electric field between a donor and acceptor in a p-n junction region of a photoelectric conversion device and a reverse electric field formed by hole-electron pairs generated by photoelectric conversion and accumulated separately, applied by overlapping the reverse electric field of the p-n junction electric field to lower a carrier diffusion barrier. The open-circuit voltage is increased by expanding the potential difference according to a reverse increase in the equilibrium potential of the p-n junction region according to an increase in diffusion movement of electrons and holes in the photoelectric conversion device. By implementing the high voltage photoelectric conversion device including a high voltage electric double-layer capacitor, the number of series-connected solar cells required to generate high voltage can be significantly reduced. As the electric double-layer capacitor, which is a high output energy storage device, is bonded face to face with a photoelectric conversion layer, the electron-hole pairs generated by solar energy flowing into the photoelectric conversion layer are recombined inside the photoelectric conversion layer to significantly improve photoelectric conversion efficiency by increasing a rate at which energy is drawn to the outside before being lost as heat energy. In addition, an overall size of a module which connects a plurality of solar cells in series to generate high voltage can be significantly reduced. Therefore, as high voltage can be easily implemented and operated in spaces in which output loss may occur due to shading in some areas of a solar cell module or in narrow spaces in which it is difficult to connect the plurality of solar cells in series and form high voltage, there is a space saving effect. 본 발명은 고전압 광전변환 소자에 관한 것으로 광전변환 소자의 p-n접합 영역 도너-억셉터 간 전계(electric field)와 광전변환에 의해 생성되어 분리 축적되는 정공-전자 쌍이 형성하는 역방향 전계에 의한 정공 확산, 전자 확산 거동에 따른 전위차(potential difference)로 제한되는 개방전압을 p-n접합 전계(junction electric field)의 역방향 전계를 중첩하여 인가하여 캐리어 확산 장벽을 낮추어 광전변환 소자의 전자, 정공 확산 이동 증가에 따른 p-n 접합 영역 평형 전위의 역방향 증가에 따른 전위차를 확대하여 개방전압을 높인 고전압 전기 이중층 커패시터를 포함하는 고전압 광전변환 소자를 구현하여 고전압 형성을 위해 필요한 직렬연결 태양전지의 수를 현저히 절감할 수 있으며 고출력 에너지 저장소자인 전기 이중층 커패시터가 광전변환층과 대면 접합됨에 따라 광전변환층에 유입된 태양광 에너지