Nanotechnology In Led Production
Nanotechnology basically th manipulation f matter r vrl matters n molecular scale
. Th theory f th technology h bn announced n th 1960's, but major researches nd developments started durng th 1980's. It introduction t LED production bringing quality achievements bth n lighting solutions nd fr displays.
LEDs r th mt energy-efficient lighting solution n th market, n LEDs convert th majority f energy nt light. Still, but 20% f th light emitted b th diode lost due th high refractive index f LEDs (a rtn percentage f th light reflected bk nd th diode nd nt emitted eventually). Th rate uull depends n th components f th diode. T gt th light thrw lost wthn th diode, researchers - nd rntl adopted b manufacturers - ud nanotechnology nd created microscopic holes (roughly 400 times narrower thn human hair) n th surface f th diode, uull hundreds f thousands f holes n single diode.
Since th introduction f Nano imprint technology t th process creating LEDs wth nanotechnology t cheaper nd muh faster compared t t solutions Th so-called Nano LED mr powerful nd efficient LED solution, wth dfntl lighter emitted. Also, bd reducing th optical loss, recovered light leads t l heat built u wthn th diode. Th way, LEDs n b packed closer t h other, nd l hv generally longer lifespan. Another, additional benefit f Nano-LEDs thr high CRI, nd wider range f colour temperature.
An early application f th technology w nt vn n lighting solutions but n television displays, whr nanotechnology resulted n nw generation f LED TVs. Frt LED televisions r nt real LED solutions, th r tull LCD TVs wth LED backlighting frm th sides. Wth nanotechnology, LED TVs r created wth full array f LEDs, bhnd panel f microscopic r nano dots letting light thrugh emitted b LEDs. Th w light dispersed mr evenly, giving th displayed picture mr definition, clarity nd smoothness. Th technology l llw th display t b thinner: th frt TV manufactured wth th technology th LG LEX8, whh nl 0.88 cm thin.
Nanotechnology brings new, fascinating results regularly. In th field f lighting, n f th latest news "nano-LEDs" grown wires. Th technology w accidentally discovered September 2010, whn chemists Babak Nikoobakht nd Andrew Herzing experimented wth growing nano-wires horizontally. Wth th increased thickness f th gold catalyst, th nanowires grew "nanowall", whh electrons n flow across. Charged wth electricity th wires produced light, thu researchers named th phenomenon "nano-LED". Th technology wll llw adding lighting t microscopic solutions, t t full scale f potentials undiscovered.
Similarly interesting achievement f nanotechnology n lighting uld b th solutions f Academia Sinica nd th National Cheng Kung University n Taiwan, whr professors implanted gold nanoparticles nt leaves f trees, thu creating bio-luminescent red light. Th bio-LEDs nd furthr development, but th aim t create trees providing street light lng roads. Presumable th trees wuld l absorb CO2 durng th night, whh n additional level f photosynthesis.
Nanotechnology ud fr creating furthr lighting solutions promising future n th mt unconventional forms f lighting. Biological lighting r organic lighting r bth key perspectives n eco-friendly illumination, whh mk research fr lwr cost nd bttr performing LEDs crucial.
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by: stefsonmethew
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