一種含量子點波長轉換器,包含一基質層,及複數個量子點分散於該基質層。每一個量子點包括一化合物M1A1的核、一內殼層,及一化合物M1A2或M2A2的多突點結構外殼層。M1及M2分別是選自於下列群組的一金屬:Zn、Sn、Pb、Cd、In、Ga、Ge、Mn、Co、Fe、Al、Mg、Ca、Sr、Ba、Ni、Ag、Ti及Cu,且A1及A2是選自於下列群組的一元素:Se、S、Te、P、As、N、I及O。該內殼層圍繞該核,且具有一含有化合物M1xM21-xA1yA21-y的組成物,其中M2是不同於M1且A2是不同於A1。該多突點結構外殼層圍繞該內殼層且具有一基部及由該基部往遠離該內層核方向延伸的複數個突起部。 Aquantum dot-containing wavelength converter includes a matrix layer and quantum dots dispersed in the matrix layer. Each of the quantum dots includes a core of a compound M1A1, an inner shell, and a multi-pod-structured outer shell of a compound M1A2 or M2A2. Each of M1 and M2 is a metal selected from Zn, Sn, Pb, Cd, In, Ga, Ge, Mn, Co, Fe, Al, Mg, Ca, Sr, Ba, Ni, Ag, Ti and Cu, and each of A1 and A2 is an element selected from Se, S, Te, P, As, N, I, and O. The inner shell contains a compound M1xM21-xA1yA21-y, wherein M2 is different from M1 and A2 is different from A1. The multi-pod-structured outer shell has a base portion and protrusion portions that extend from the base portion in a direction away from the inner shell. |