Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States.
ACS Nano. 2012 Feb 28;6(2):1455-62. doi: 10.1021/nn204296b. Epub 2012 Jan 24.
We present the synthesis and device characterization of new hole transport materials (HTMs) for application in solid-state dye-sensitized solar cells (ssDSSCs). In addition to possessing electrical properties well suited for ssDSSCs, these new HTMs have low glass transition temperatures, low melting points, and high solubility, which make them promising candidates for increased pore filling into mesoporous titania films. Using standard device fabrication methods and Z907 as the sensitizing dye, power conversion efficiencies (PCE) of 2.94% in 2-μm-thick cells were achieved, rivaling the PCE obtained by control devices using the state-of-the-art HTM spiro-OMeTAD. In 6-μm-thick cells, the device performance is shown to be higher than that obtained using spiro-OMeTAD, making these new HTMs promising for preparing high-efficiency ssDSSCs.
我们提出了新的空穴传输材料（HTM）的合成和器件特性，用于固态染料敏化太阳能电池（ssDSSC）。除了具有适合 ssDSSC 的电学性能外，这些新的 HTM 还具有低玻璃化转变温度、低熔点和高溶解度，这使得它们成为增加介孔二氧化钛薄膜中孔填充的有前途的候选材料。使用标准器件制造方法和 Z907 作为敏化染料，在 2μm 厚的电池中实现了 2.94%的功率转换效率（PCE），可与使用最先进的 HTM spiro-OMeTAD 的对照器件获得的 PCE 相媲美。在 6μm 厚的电池中，显示出的器件性能高于使用 spiro-OMeTAD 获得的性能，这使得这些新的 HTM 有希望用于制备高效 ssDSSC。
