iphepha_ibhena

Yintoni i-excimer?

Igama elithi excimer libhekisa kwimo yeathom yethutyana apho iiathom ezinamandla kakhulu zenza iiperi zemolekyuli ezihlala ixesha elifutshane, okanyeiidimers, xa imincili nge-elektroniki. Ezi zibini zibizwai-dimers evuyayo. Njengoko ii-dimers ezinemincili zibuyela kwimeko yazo yangaphambili, amandla aseleyo akhululwa njengefoton ye-ultraviolet C (UVC).

Ngeminyaka yee-1960, i-portmanteau entsha,Excimer, yavela kuluntu lwenzululwazi kwaye yaba ligama elamkelekileyo lokuchaza ii-dimers ezinemincili.

Ngokwenkcazo, igama elithi excimer libhekisa kuphela kuiibhondi ze-homodimericphakathi kweemolekyuli zohlobo olufanayo. Umzekelo, kwisibane se-xenon (Xe) se-excimer, i-athom ye-Xe ene-eneji ephezulu yenza i-Xe2 dimers echwayitileyo. Ezi dimers zikhokelela ekukhutshweni kweefotoni ze-UV kubude be-wavelength ye-172 nm, esetyenziswa ngokubanzi kwishishini ngeenjongo zokuvula umphezulu.

Kwimeko imincili complexes eyenziwe yeheterodimeric(ezimbini ezahlukeneyo) iintlobo zesakhiwo, igama elisemthethweni le-molekyuli enesiphumoexciplex. I-Krypton-chloride (i-KrCl) i-exciplexes iyanqweneleka ekukhutshweni kwayo kwe-222 nm ultraviolet photons. I-222 nm wavelength yaziwa ngobuchule bayo obubalaseleyo bokubulala iintsholongwane.

Kuvunyiwe ngokubanzi ukuba igama elithi excimer lingasetyenziselwa ukuchaza ukwakheka kokubini kunye ne-exciplex radiation, kwaye ibangele igama elithi excimer.excilampxa kubhekiswa kwii-emitters zokukhupha ezisekelwe ekukhutshweni.

Excimer


Ixesha lokuposa: Sep-24-2024