CAJ | 학술논문

有机-无机杂化太阳电池综合了有机、无机材料的优点，成本低、理论效率高，受到人们的广泛关注。杂化太阳电池的光活性层由无机半导体和有机共轭聚合物复合而成。当光照射到活性层上时，共轭聚合物吸收光子产生激子(电子-空穴对)；激子迁移到有机给体-无机受体的异质结界面处发生解离而产生自由电子和空穴；自由电子和空穴分别向无机半导体和有机聚合物传输，从而实现电荷的分离和传导。激子在有机-无机异质结界面处的分离效率是影响电池性能的一个重要因素。有机、无机两相材料往往因为接触面积小以及相容性差使此两相材料接触不佳，激子迁移到此界面不能有效分离，从而严重影响了杂化太阳电池的效率。这个问题可以通过此界面的修饰加以改善。本文即综述了有机-无机异质结界面修饰的方法、作用和意义，并展望了杂化太阳电池未来的发展趋势和应用前景。
유궤-무궤잡화태양전지종합료유궤、무궤재료적우점，성본저、이론효솔고，수도인문적엄범관주。잡화태양전지적광활성층유무궤반도체화유궤공액취합물복합이성。당광조사도활성층상시，공액취합물흡수광자산생격자(전자-공혈대)；격자천이도유궤급체-무궤수체적이질결계면처발생해리이산생자유전자화공혈；자유전자화공혈분별향무궤반도체화유궤취합물전수，종이실현전하적분리화전도。격자재유궤-무궤이질결계면처적분리효솔시영향전지성능적일개중요인소。유궤、무궤량상재료왕왕인위접촉면적소이급상용성차사차량상재료접촉불가，격자천이도차계면불능유효분리，종이엄중영향료잡화태양전지적효솔。저개문제가이통과차계면적수식가이개선。본문즉종술료유궤-무궤이질결계면수식적방법、작용화의의，병전망료잡화태양전지미래적발전추세화응용전경。
Much attention has been focused on hybrid solar cells because of their low cost and high theoretical efficiencies. The photoactive layer of hybrid solar cells is composed of inorganic semiconductor and organic conjugated polymer. Excitons (electron-hole pairs) are formed upon the absorption of photons by the polymer. The excitons diffuse to the heterojunction interface between the organic donor and inorganic acceptor, and then dissociate to free electrons and holes. These electrons and holes then transfer to the inorganic and organic materials to realize charge separation and transportation. The exciton dissociation efficiency at the organic-inorganic heterojunction interface influences the photovoltaic performance of the cell. A smal contact area and poor chemical compatibility between the organic and inorganic materials decrease the exciton dissociation efficiency, and thus the overal cellefficiency. This can be overcome by modifying the heterojunction interface. This paper reviews available interfacial modification methods, their function and significance, and explores prospects for the future development and application of hybrid solar cells.