Sharif University of Technology, Institute for Nanoscience and Nanotechnology, Teheran, 14588-89694, Iran.
Phys Chem Chem Phys. 2013 Feb 14;15(6):2075-80. doi: 10.1039/c2cp43434b. Epub 2013 Jan 3.
We present an investigation on the optimisation of solid-state dye sensitized solar cells (SDSCs) comprising mesoporous tin oxide photoanodes infiltrated with poly(3-hexylthiophene-2,5-diyl) (P3HT) hole conductor and sensitized with an organic dye. We chose both the SnO(2) and P3HT for their high charge carrier mobilities and conductivities, but as a result preclude conventional device configurations because of high leakage current and low shunt-resistance. To minimize the "hole leakage current" through the FTO anode, we employed a double compact layer structure, and to minimize "electron leakage current" at the silver cathode, we developed a protocol for depositing an optimal P3HT "capping layer". After optimisation of cell fabrication, the electron lifetime is increased considerably and the solar cells exhibited simulated AM1.5 full sun solar power conversion efficiencies in excess of 1%.
我们研究了优化包含介孔氧化锡光阳极的固态染料敏化太阳能电池 (SDSC)，该光阳极用聚(3-己基噻吩-2,5-二基) (P3HT) 空穴导体渗透，并敏化有机染料。我们选择 SnO(2) 和 P3HT 是因为它们具有高电荷载流子迁移率和电导率，但由于高漏电流和低并联电阻，因此不适合传统的器件结构。为了最小化通过 FTO 阳极的“空穴漏电流”，我们采用了双层致密层结构，为了最小化银阴极的“电子漏电流”，我们开发了一种沉积最佳 P3HT“盖帽层”的方案。在优化电池制造后，电子寿命大大延长，太阳能电池的模拟 AM1.5 全阳光太阳能功率转换效率超过 1%。
