Randomly oriented ZnO microsheets were successfully self-assembled on TiO2 nanoparticle(TN) film to act as the scattering layer via a cathodic electrodeposition process.The light scattering properties of ZnO microsheets were studied by UV-Vis spectrometer in the 400-800 nm wavelength range.It was found that ZnO microsheets exhibited excellent ability to scatter the incident light for ZnO microsheet-TiO2 nanoparticle(ZT) composite films.The results showed that dye-sensitized solar cells(DSSCs) fabricated with ZT composite films showed higher short-circuit density(Jsc) and conversion efficiency than TN-based DSSCs,due to the light scattering properties of ZnO microsheets.
ZHONG MinYi WANG Hai LIU Yong LIMing HUANG Hong SHEN Hui
A novel structure of photoelectrochromic cell fabricated with titanium wirelike photo-electrode is introduced in this paper. The transmittance spectra show that average transmittance of devices is 68.0% (from 400 to 1100 nm) at bleached state and 26.1% (from 400 to 1100 nm) at colored state, respectively. And the maximal photopic transmittance of the device varies from 81.9% (bleached state) to 30.3% (colored state) at 736 nm. Compared with traditional devices, the spectral response range is improved obviously, which solves the problem of lower transmittance at bleached state for traditional devices.
LIU Yong SHEN Hui CHEN Wei WANG Hai DENG YouJun WANG DongHai
