Waa maxay excimer?

Ereyga excimer wuxuu tilmaamayaa xaalad atomi ah oo ku meel gaar ah oo atamka tamarta sare leh ay sameeyaan lammaane molecular ah oo muddo gaaban jira, amadimers, marka si elektaroonik ah loo kiciyo. Lamaanayaashan waxaa loogu yeeraadimers faraxsanMarka dimer-yada kacsan ay ku soo noqdaan xaaladdoodii asalka ahayd, tamarta hadhaaga ah waxaa loo sii daayaa sidii photon ultraviolet C (UVC).

Sannadkii 1960-meeyadii, waxaa la sameeyay isbeddel cusub,excimer, waxay ka soo baxday bulshada sayniska waxayna noqotay ereyga la aqbalay ee lagu tilmaamayo dimers-ka kacsan.

Qeexitaan ahaan, ereyga excimer waxa uu tilmaamayaa oo keliyaxidhmooyinka homodimericInta u dhaxaysa molecules-ka noocyada isku midka ah. Tusaale ahaan, laambadda excimer-ka xenon (Xe), atamka Xe ee tamarta sare leh waxay sameeyaan dimers-ka Xe2 ee kacsan. Dimer-yadani waxay keenaan sii deynta photons-ka UV-ga ee hirarka 172 nm, kaas oo si weyn loogu isticmaalo warshadaha ujeeddooyinka kicinta dusha sare.

Xaaladda isku-dhafka xiisaha leh ee la sameeyayheterodimeric(laba nooc oo kala duwan) oo qaab-dhismeed ah, ereyga rasmiga ah ee molecule-ka ka dhashay waaexciplex. Waxyaabaha ka soo baxa Krypton-chloride (KrCl) waa kuwo la jecel yahay marka ay sii daayaan 222 nm oo ah photons ultraviolet. Hirarka hirarka 222 nm waxaa loo yaqaanaa awooddeeda aadka u fiican ee ka hortagga jeermiska.

Guud ahaan waxaa la aqbalay in ereyga excimer loo isticmaali karo in lagu qeexo sameynta shucaaca excimer iyo shucaaca exciplex labadaba, waxayna keentay ereygaexcilampmarka la tixraacayo kuwa sii daaya dheecaanka ku salaysan dheecaanka.