Solar energy materials, surface

Pourbaix diagrams for the aqueous Cd-S, Cd-Te, Cd-Se, Cu-In-Se, and Sb-S systems have been compiled and discussed by Savadogo [26] in his review regarding chemically and electrochemically deposited thin Aims for solar energy materials. Dremlyuzhenko et al. [27] analyzed theoretically the mechanisms of redox reactions in the Cdi xMn , Te and Cdi- , Zn i Te aqueous systems and evaluated the physicochemical properties of the semiconductor surfaces as a function of pH. 

Surface coating technology, for solar energy materials, 23 1... 

CZANDERNA Surface Analysis and Solar Energy Materials... 

D. Celik, M. Krueger, C. Veit, H. F. Schleiermacher, B. Zimmermann, S. Allard, I. Dumsch, U. Scherf, E Rauscher, P. Niyamakom, Performance Enhancement of CdSe Nanorod-Polymer Based Hybrid Solar Cells Utilizing a Novel Combination of Post-Synthetic Nanoparticle Surface Treatments. Solar Energy Materials and Solar Cells 2012, 98,433-440. 

Accurate measurements of the spectral reflectance of diffusing surfaces are important to numerous scientific and engineering disciplines, including the fields of solar energy materials, color science, analytical chemistry, spacecraft thermal engineering, military low observable materials, and remote... 

The energy that powers terrestrial processes is derived primarily from the sun and from the Earth s internal heat production (mostly radioactive decay). Solar energy drives atmospheric motions, ocean circulation (tidal energy is minor), the hydrologic cycle, and photosynthesis. The Earth s internal heat drives convection that is largely manifested at the Earth s surface by the characteristic deformation and volcanism associated with plate tectonics, and by the hotspot volcanism associated with rising plumes of especially hot mantle material. 

Despite the relatively large band-gap energy, Ti02 is often used as a photocatalyst because of its relative inertness with regard to dissolution. In order to render such materials more suitable as photocatalysts for the visible part of the solar spectrum, the surface of the solid phase is modified by the specific adsorption of a chromophore which has a lower energy gap between the HOMO and the LUMO as compared to the band-gap of the semiconductor. The principle is shown in Fig. 10.8 for the case of a photoelectrochemical cell. 

Another approach to radiation loss reduction might be the alteration of the salt water surface in some manner to lower its emissivity for thermal radiation. If a transparent thin liquid film or porous solid film of low thermal emissivity, permeable to water vapor, could be floated on the salt water, solar energy could continue to be absorbed on the basin bottom, water would vaporize, but thermal radiation loss would be reduced. Whether materials with these properties can be found and successfully utilized remains to be seen. 

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