Figure 4From: A new method to disperse CdS quantum dot-sensitized TiO2 nanotube arrays into P3HT:PCBM layer for the improvement of efficiency of inverted polymer solar cellsAbsorption for the two devices with and without the CdS( n )/TNTs. The inset is the corresponding transmission spectra of the two devices between the wavelength 350 and 700 nm.Back to article page