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Due to widespread droughts and population increase, the rapid and sustainable purification of contaminated water is of major interest to human beings. Toward this end, this paper reports a handheld and efficient purification system using maskless micro/nanofabrication techniques. A porous polymer membrane decorated with nanomaterials was tailored to physically filter pollutants in contaminated water...
Summary form only given. Recently, the vibrational states of quantum dots have been intensively studied as well as the optical properties due to carrier confinement. In this report, a modified expression is proposed, which can explain the observed size- and glass-dependent phonon energies of CdSe quantum dots in B/sub 2/O/sub 3/-SiO/sub 2/ and SiO/sub 2/ glasses and the previously reported ones in...
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