Abstract:
PURPOSE: A polymer is provided to have a band gap with wide and low photoabsorption region, thereby capable of being used for an organic solar cell of high efficiency. CONSTITUTION: A polymer comprises a repeating unit indicated in chemical formula (P1) and (P2). In the chemical formulas, R1 and R2 is respectively a C1-20 linear or branched saturated or unsaturated alkyl group, n is an integer from 1-100,000, and a molecular weight is 500-10,000,000. An organic solar cell comprises the polymer. The polymer is included in a photo-conversion active layer. The photo-conversion active layer additionally comprises fullerene derivatives.
Abstract:
PURPOSE: A dye-sensitized solar cell and a manufacturing method thereof are provided to increase a current value by light scattering at a porous electrode since radiated light meets a light scattering layer in all unit cells after passing a porous electrode layer including a dye attached metal oxide nano-particle, thereby enabling the manufacture of an integrated module with high photoelectric transmission efficiency. CONSTITUTION: A connecting electrode electrically connects a first unit cell and a second unit cell. An insulator between unit cells electrically insulates the first unit cell and the second unit cell. A dye-sensitized solar cell includes an array structure of alternating polarity comprised of an electrode for external connection which is respectively prepared for an upper and lower transparent substrate. The first and second unit cells include a pair of conductive transparent electrodes, a porous electrode layer, a light scattering layer, and a catalyst membrane electrode. The porous electrode layer is formed on one side of the conductive transparent electrode and includes a first metal oxide nano-particle with an average diameter of 10nm to 50nm. The light scattering layer includes a second metal oxide nano-particle in which average particle diameter is 100nm to 500nm. The catalyst membrane electrode is formed on the other side of the conductive transparent electrode.
Abstract:
본 발명은 단일 전지 내에서 다중 염료 적층 구조를 가지는 염료감응 태양전지 및 그 제조방법에 관한 것이다. 보다 상세하게는, 본 발명은 투명전도성 기판 위에 서로 다른 파장을 갖는 적어도 2종 이상의 염료층을 포함하는 광전극, 상기 광전극에 대향 배치되며 투명전도성 기판 위에 형성된 백금층을 포함하는 상대전극, 및 상기 광전극과 상대전극 사이를 충진하는 전해질을 포함하는 염료감응 태양전지 및 그 제조방법을 제공한다. 본 발명의 염료감응 태양전지는 여러 전지를 연결하지 않고 단일 전지 내에 각각 다른 광흡수파장을 가지는 염료들을 다층으로 적층 형성함으로써 태양광을 광범위하게 흡수할 수 있는 장점이 있다. 또한 각 염료에 맞는 나노산화물을 적용할 수 있어, 높은 에너지 변환 효율을 갖는 염료감응태양전지의 구현이 가능하다.