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Solution-processable small molecules for organic solar cells ( OSCs ) have been investigated intensively in recent years on account of their advantages of gaining large-area , flexible , lightweight devices by roll – to – roll printing techniques .A research team from National Center for Nanoscience and Technology ( NCNST ) studied the shortening alkyl Chains effects on light absorption , molecular energy level ...

Cultivation of paddy rice for human consumption is a dominant agricultural activity throughout Asia . High levels of mercury ( Hg ) in rice grain pose a potential threat to human health .Previous studies do not afford comprehensive understanding of the speciation and localisation of Hg throughout rice grain .The research group from Institute of Geochemistry , Chinese Academy of Sciences reported speciation and loc...

Ethoxylated sterols , an example of environmentally benign surfactants , exhibit amphiphilic behaviors due to the hydrophobic steroid nucleus and the hydrophilic polyoxyethylene chains .From FA to N-methylformamide ( NMF ) , and then N , N-dimethylformamide ( DMF ) , the replacement of hydrogen moieties with methyl group reduces the number of donating protons successively and transforms the solvent from protic ( F...

Ethoxylated sterols , an example of environmentally benign surfactants , exhibit amphiphilic behaviors due to the hydrophobic steroid nucleus and the hydrophilic polyoxyethylene chains .From FA to N-methylformamide ( NMF ) , and then N , N-dimethylformamide ( DMF ) , the replacement of hydrogen moieties with methyl group reduces the number of donating protons successively and transforms the solvent from protic ( F...

The self-assembly nano dots are disordered and near Gaussian in size distribution and the coverage ratio on Si wafer can achieve to 37%.Moreover,CaCl2nano dots can keep integrity for more than one month in arbitrary relative humidity at room temperature,stable enough for practical use. Evaporation coated CaCl2 can cover uneven surface and make the nanopillars planted at unpolished Si wafer to avoid high polishing ...

Liu, from Stanford Synchrotron Radiation Lightsource, and his cooperators developed a Fast Discrete Wavelet Transform based algorithm for extending the DOF by analyzing the image stack taken in a sample scan along the optical train. With the extended depth of focus, it is possible to obtain 3D structural information over a large volume. The feasibility of the method is confirmed with experimental data collected us...
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