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With ever increasing concern on energy diversification, energy efficiency and environmental protection, electric vehicles (EVs) including the pure EV (PEV), hybrid EV (HEV) and fuel-cell EV (FEV) are becoming attractive ...

The ability to manipulate light at deeply sub-wavelength scales opens a broad range of research possibilities and practical applications. In this paper, we go beyond recent demonstrations of active photonic devices coupl...

The energy costs associated with separating tightly bound excitons (photoinduced electron-hole pairs) and extracting free charges from highly disordered low-mobility networks represent fundamental losses for many low-cos...