The bean stem element 1 (SE1), that appears to act as a strong unspecific enhancer, and the oat light-repressor element 1 (RE1), which suppresses light-driven reporter gene expression, contain sequences that perfectly match the FORCA consensus [ 37, 38].
Usually it contains also a nearly opaque dye to suppress light reflection on the rear support surface.
In addition to enhancing absorption, controlling or suppressing light scattering is also of great interest for many applications.
A wire length of 1.2 μm suppressed light reflection enough to obtain 99% absorptance at a filling ratio of 38%.
Since the ZnO nanotube can suppress light scattering at short wavelengths, the T-J solar cell with a ZnO nanotube has the lowest reflectance, especially in the wavelength range of UV to green.
The grating surface always plays a role to suppress light scattering from the active region, so more light can be absorbed again by a-Si in the infrared-region.
Here, we investigated two key factors for the Si wire solar cells in order to improve the cell performances: One is to use ZnO nanorods to increase power conversion efficiency by suppressing light reflection and increasing light scattering to the Si wire solar cells.
The photovoltaic efficiency of sample C was enhanced more than 27%, and Jsc was improved by over 31% compared to sample A. It is strongly attributed to the incorporation of the AZO thin film and ZnO nanorod ARC by suppressing light reflectance and surface recombination.
This approach can be used to suppress light scattering, but also it can help to separate a dye with a short fluorescence lifetime with respect to a dye with a long fluorescence lifetime.
Transmitting US through the lateral geniculate nucleus of intact cats, Fry and colleagues (1958) demonstrated that high-power US reversibly suppressed light-evoked potentials recorded in the visual cortex [4].
