Kodi excimer ndi chiyani?

Mawu akuti excimer amatanthauza mkhalidwe wa atomu wakanthawi pomwe maatomu amphamvu kwambiri amapanga ma molekyulu awiriawiri osakhalitsa, kapenama dimers, akamakhudzidwa ndi zamagetsi. Mawiriwa amatchedwadimers okondwaPamene ma dimers okondwa akubwerera ku mkhalidwe wawo woyambirira, mphamvu yotsalayo imatulutsidwa ngati photon ya ultraviolet C (UVC).

Mu zaka za m'ma 1960, portmanteau yatsopano,excimer, linachokera ku gulu la asayansi ndipo linakhala liwu lovomerezeka lofotokozera ma dimers okondwa.

Mwa tanthauzo, mawu akuti excimer amatanthauza kokhamaubwenzi a homodimericpakati pa mamolekyu a mtundu womwewo. Mwachitsanzo, mu nyali ya xenon (Xe) excimer, maatomu a Xe amphamvu kwambiri amapanga ma Xe2 dimers olimbikitsidwa. Ma dimers amenewa amachititsa kuti ma photon a UV atulutsidwe pa mafunde a 172 nm, omwe amagwiritsidwa ntchito kwambiri m'mafakitale poyambitsa kuwala pamwamba.

Pankhani ya zovuta zochititsa chidwi zopangidwa ndiheterodimeric(mitundu iwiri yosiyana) ya kapangidwe kake, mawu ovomerezeka a molekyulu yomwe imachokera ndiexciplexMa exciplex a Krypton-chloride (KrCl) ndi ofunikira chifukwa cha kutulutsa kwawo ma photon a ultraviolet a 222 nm. Kutalika kwa 222 nm kumadziwika chifukwa cha mphamvu zake zabwino kwambiri zotsutsana ndi mabakiteriya.

Kawirikawiri anthu amavomereza kuti mawu akuti excimer angagwiritsidwe ntchito pofotokoza kupangika kwa ma radiation a excimer ndi exciplex, ndipo apangitsa kuti mawuwa ayambe kugwiritsidwa ntchito.excilampponena za ma emitters ochokera ku excimer omwe amachotsa zinthu.