We propose and demonstrate hybrid white light emitting diodes enhanced with resonant nonradiative energy transfer in CdSe/ZnS core/shell nanocrystal solids integrated on near-UV InGaN/GaN LEDs. We observe a relative quantum efficiency enhancement of 13.2 percent for the acceptor nanocrystals in the energy gradient mixed assembly, compared to the monodisperse phase. This enhancement is attribute...

Supplemental lighting is frequently used to extend daylength for strawberries ( Fragaria × ananassa ) grown in greenhouses and high tunnels; however, information limited on the effect of these lights disease development. We evaluated ambient light six supplemental treatments [red, blue, white light-emitting diodes (LEDs), separately; a combination red, LEDs; wide-spectrum fluorescent (WSF); WFS...

As an emerging light source, ultraviolet emitting diodes (UV-LEDs) are adopted to overcome the shortcomings of conventional mercury lamp, such as pollution. The degradation chloramphenicol (CAP) using three UV-LED-based advanced oxidation processes (AOPs)—UV-LED/persulfate (UV-LED/PS), UV-LED/peroxymonosulfate (UV-LED/PMS) and UV-LED/chlorine—was investigated. Results indicate that CAP can be m...

The introduction of a surface into the marine environment begins process known as biofouling, which increases weight and hydrodynamic drag fouled structure. This is detrimental to maritime vessels costs industry ∼$150B in fuel maintenance spending annually. Preventing settlement fouling organisms mitigates these issues limits spread non-indigenous species (NIS). primarily achieved via antifouli...

Despite of the technological importance developing AlGaN deep UV LEDs on Si, there are only a few reports about Si based epilayers. Herein, we show vertical with polarization enhanced p-AlGaN epilayer. The devices emit at 278 nm, uniform current injection. Compared to using standard epilayer, series resistance epilayer is reduced by factor 5. This work represents first report

Background: The current COVID-19 pandemic has demonstrated the enormous importance of maintaining good hygienic conditions in everyday indoor environments for prevention infectious diseases. This includes sanitization methods capable significantly reducing microbial load air and on surfaces. However, line with ecological transition, alternative systems environmental reduced impact are urgently ...