Waa maxay excimer?

Erayga excimer waxa loola jeedaa xaalad atomiga ku meel gaadhka ah kaas oo atamka tamarta sare ay sameeyaan lammaane molecular muddo gaaban, amadimers, marka si elektaroonik ah loo faraxsan yahay. Labadan lamaane ayaa loo yaqaandimers faraxsan. Marka dimers-yada xiisaysan ay ku soo noqdaan xaaladdoodii asalka ahayd, tamarta hadhaaga ah waxaa loo sii daayaa sida ultraviolet C (UVC) sawir-qaade.

Sannadihii 1960-yadii, Portmanteau cusub,excimer, oo ka soo dhex baxay bulshada sayniska oo noqotay ereyga la aqbalay ee lagu tilmaamayo dimers xamaasad leh.

Qeexitaan ahaan, ereyga excimer waxa loola jeedaa oo keliyaisku xidhka homomericoo u dhexeeya unugyo isku nooc ah. Tusaale ahaan, xenon (Xe) laambad sare, atamka Xe tamarta sare leh waxay sameeyaan xamaasad Xe2 dimers ah. Dimers-yadani waxay keenayaan sii deynta UV photons dhererka hirarka 172 nm, kaas oo si weyn loogu isticmaalo warshadaha ujeedooyinka kicinta dusha sare.

Marka laga hadlayo dhismayaal xamaasad leh oo ka sameysanheterodimeric(laba nooc oo kala duwan) qaab dhismeed, ereyga rasmiga ah ee unugyadu waaexciplex. Krypton-chloride (KrCl) Exciplexes waxay jecel yihiin inay sii daayaan 222 nm ultraviolet photons. Dhererka hirarka 222 nm waxaa lagu yaqaanaa awooddiisa jeermiska jeermiska-jeermiska ee aad u wanaagsan.

Waxa guud ahaan la aqbalay in ereyga excimer loo isticmaali karo in lagu qeexo samaynta shucaaca excimer iyo exciplex labadaba, waxana uu keenay ereygaexcilampmarka la tixraacayo hawada sare ee ku salaysan dheecaanka.