Huynh quang la su phat quang khi phan tu hap thu nang luong dang nhiet (photon) hoac dang quang (photon).O trang thai co ban So, phan tu hap thu nang luong tu moi truong ben ngoai va chuyen thanh nang luong cua cac electron, nhan nang luong cac electron nay se chuyen len muc nang luong cao hon, goi la trang thai kich thich S*, đay la mot trang thai khong ben, do đo electron se mau chong nhuong nang luong duoi dang nhiet đe ve trang thai kich thich nhung nang luong thap hon S*o, thoi gian ton tai cua electron giua muc nang luong S*->S*o vao khoang 10−9 đen 10−12 giay, sau khi ve trang thai kich thich S*o, electron lai mot lan nua phat nang luong duoi dang photon đe ve muc thap hon, hien tuong nay goi la huynh quang phan tu. Cung la hien tuong nhan nang luong tu moi truong ngoai sau đo phan tu phat xa photon, nhung can phan biet su khac nhau giua quang pho huynh quang (fluorescence) voi quang pho lan quang (phosphorescence) va quang pho phat xa (emission). Su khac biet co ban giua huynh quang va lan quang la thoi gian ton tai cua electron o trang thai kich thich, o huynh quang la rat thap co 10−9 giay, con lan quang co mili giay. Su khac nhau co ban giua phat xa voi huynh quang va lan quang la muc phat nang luong đe chuyen ve trang thai co ban, quang pho phat xa hap thu bao nhieu nang luong tu ben ngoai se phat xa bay nhieu duoi dang photon đe chuyen ve trang thai ban đau, con huynh quang va lan quang thi khong, do qua trinh phat xa nang luong cua no co 2 buoc, buoc 1 phat xa duoi dang nhiet, buoc 2 moi phat xa photon, nen nang luong photon khi phat xa se khong the tuong đuong nang luong ma phan tu đa hap thu truoc đo.


Tham khao Lien ket ngoai cac ban tham khao cac mau sau đay
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