نتایج جستجو برای: nanocrystalline thin films

تعداد نتایج: 189436  

1999
Suzanne Bélanger Joseph T. Hupp Charlotte L. Stern Robert V. Slone David F. Watson Thomas G. Carrell

Described are the preparation and functional characterization of nanocrystalline and/or amorphous thin films comprising of neutral “molecular squares” of the form [Re(CO)3(Cl)(μ-L)]4 (L ) difunctional imine or azine ligand). The films are strongly adherent, stable in aqueous media, and characterized by comparatively few pinhole defects. Electrochemical transport experiments show that the materi...

2012
Yongfeng Li Wanjian Yin Rui Deng Rui Chen Jing Chen Qingyu Yan Bin Yao Handong Sun Su-Huai Wei Tom Wu

Although many oxide semiconductors possess wide bandgaps in the ultraviolet (UV) regime, currently the majority of them cannot efficiently emit UV light because the band-edge optical transition is forbidden in a perfect lattice as a result of the symmetry of the band-edge states. This quantum mechanical rule severely constrains the optical applications of wide-bandgap oxides, which is also the ...

2001
W. I. Milne A. Ilie J. B. Cui A. Ferrari J. Robertson

Field emission has been reported to occur at much lower fields in carbon based thin film systems than from any other material systems. The emission has been shown to depend on the various material parameters, but whichever carbon based system is used, it is found that emission occurs at localised sites rather than uniformly over the entire surface. Carbon films with mixed sp3 sp2 bonding, like ...

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