The allowed conrotatory cyclobutene ring-opening has a distinctly nonplanar carbon skeleton. Classic experiments by Brauman and Archie, and by Freedman et al., placed the allowed/forbidden gap at greater than 15 kcal/mol. Wolfgang Roth proposed that a system forced to planarity might have a ...
To better understand the optical properties of the PhC device, we performed numerical simulations and characterizations of the device. Figure2ashows the dispersion curves of the eight lowest energy bands (optical band structures, by the MPB band solver34) along the Γ-X line [\({{{\bf{k}}}...
In the pursuit of global carbon neutrality, artificial photocatalysis offers a powerful solution to simultaneously address the issues of the greenhouse effect and energy shortage. This process involves the direct transformation of carbon dioxide (CO2) and water into useful fuels and oxygen under ambient...
Years later, I went back to visit some in that community and while I was there I learned Mr.Miller had died. I agreed to my friends to see Mrs.Miller. Upon our arrival, we offered whatever words of . Ahead of us were three young men. They moved to the casket(棺椁). Mrs.Miller'...
The ions which are implanted are such that the resulting compound material has a higher energy gap than that of silicon into which they are implanted to selectively modify the emitter region so as to locally increase its energy gap. Preferred materials include carbon and nitrogen.ANAND, KRANTI,...
The ions which are implanted are such that the resulting compound material has a higher energy gap than that of silicon into which they are implanted to selectively modify the emitter region so as to locally increase its energy gap. Preferred materials include carbon and nitrogen.STRAIN ROBERT J...
Based on the fact that fullerenes are single-layer carbon cage structures, it is natural to assume that in the limit of large fullerene diameters, the VDOS should converge to the graphene’s VDOS given its single layer character. To explore this hypothesis, in Fig.1a we show the VDOS evolut...
amorphous silicon alloys containing oxygen, type p, with a wide range of energy and devices using the same forbidden.Wide band gap p-type amorphous silicon alloys having increased conductivities contain oxygen as a band gap increasing element. Other band gap increasing elements such as carbon can ...
From a generation standpoint, improvements in efficiency are attained mainly by three actions: (1) development of new technologies; (2) upgrade and retrofit; (3) better management of resources. Technological developments include, but are not limited to, large-scale energy storage [1], and ...