Kalmar excimer tana nufin yanayin atomic na wucin gadi wanda atoms masu ƙarfi suka zama nau'i-nau'i na ɗan gajeren lokaci, kodimers, lokacin da na'ura mai ba da hanya tsakanin hanyoyin sadarwa. Ana kiran waɗannan nau'i-nau'im dimers. Yayin da dimers masu farin ciki suka koma yanayinsu na asali, ana fitar da ragowar makamashin azaman ultraviolet C (UVC) photon.
A cikin 1960s, wani sabon portmanteau,excimer, ya fito daga al'ummar kimiyya kuma ya zama lokacin karbabbe don kwatanta dimers masu zumudi.
Ta hanyar ma'anar, kalmar excimer tana nufin kawaihomodimeric bondtsakanin kwayoyin halitta iri daya. Misali, a cikin fitilar excimer xenon (Xe), atom ɗin Xe masu ƙarfi suna samar da dimers Xe2 masu daɗi. Wadannan dimers suna haifar da sakin UV photons a tsawon tsayin 172 nm, wanda aka yi amfani da shi sosai a masana'antu don dalilai na kunna sama.
A cikin hali na m hadaddun kafa naheterodimeric(biyu daban-daban) nau'in tsari, kalmar hukuma don sakamakon kwayoyin halitta shineexciplex. Krypton-chloride (KrCl) exciplexes suna da kyawawa don fitowar su na 222 nm ultraviolet photons. Tsawon tsayin nm 222 sanannen sananne ne don kyakkyawan ƙarfin rigakafin ƙwayoyin cuta.
Gabaɗaya an yarda cewa ana iya amfani da kalmar excimer don bayyana samuwar radiation na excimer da exciplex, kuma ya haifar da kalmar.excilamplokacin da ake magana game da fitar da iska mai fitar da iska.
Lokacin aikawa: Satumba-24-2024
