Figure 7From: Optimization of the dye-sensitized solar cell performance by mechanical compressionUV–vis absorption spectra of TiO 2 nanoparticle thin film with and without compression treatment. Curve A is the as-deposited film, and curves B to F are the after mechanical compression at various pressures, 61, 131, 279, 558, and 858 kg/cm2.Back to article page