Dye-sensitized solar cells (DSCs) are molecular photovoltaics that operate efficiently in direct solar and ambient light by employing dye-impregnated mesoscopic TiO₂ films with a redox electrolyte or hole conductor. Here, we report on an advanced DSC architecture, which achieves efficiencies of 13.1% under air mass 1.5 global, 100 mW cm⁻² solar radiation, and power conversion efficiency of 32% under a standard Osram 930 Warm White fluorescent tube light at 1,000 lux intensity. The cell substantially benefits from the direct contact of the dye-impregnated TiO₂ film with the poly(3,4-ethylenedioxythiophene) (PEDOT) counter electrode acting as a hole collector. This reduces the diffusion path of redox mediator to merely the mesoporous TiO₂ film attenuating the Warburg resistance, which thereby boosts the photovoltaic performance. This architecture will not only accelerate the practical exploitation of DSCs, but also foster new types of light-harvesting devices using mesoscopic TiO₂ and PEDOT as electron and hole collection layers, respectively.

染料敏化太阳能电池（DSC）是分子光伏电池，通过采用染料浸渍的介观TiO ₂膜和氧化还原电解质或空穴导体，可在直接的太阳光和环境光下高效运行。在这里，我们报告了一种先进的DSC架构，该架构在全球1.5的空气质量，100 mW cm ^-2的太阳辐射下可实现13.1％的效率，在1,000 lux的标准Osram 930暖白荧光灯下可获得32％的功率转换效率强度。该电池基本上受益于染料浸渍的TiO ₂膜与用作空穴收集器的聚（3,4-乙撑二氧噻吩）（PEDOT）对电极的直接接触。这将氧化还原介体的扩散路径减少到仅中孔TiO ₂薄膜会减弱Warburg电阻，从而提高光伏性能。这种体系结构不仅将加速DSC的实际开发，而且将使用介观的TiO ₂和PEDOT分别作为电子和空穴收集层来培育新型的光收集装置。