CAJ | 학술논문

采用高温固相法制备了Na8 Al6 Si6 O24 Cl2∶M n和Na8 Al6 Si6 O24 Cl2∶Fe近红外发光材料。测定了荧光粉的X射线粉末衍射（XRD ），及室温下的光致近红外发射光谱和激发光谱。在400 nm紫外光和602 nm可见光的激发下，Na8 Al6 Si6 O24 Cl2∶M n粉末中的M n5＋（3 A2-3 T2，3 A2-1 E）发射了主发射峰位于1200 nm的近红外光谱。实验发现，M n和S共掺提高了该粉末的近红外发光强度，文中对此提出了S2--M n5＋之间的能量传递机理。在334和500 nm的激发下，Na8 Al6 Si6 O24 Cl2∶Fe粉末中的Fe2＋（3 T1-5 E）发射了主发射峰位于1000 nm的红外光谱，该现象对提高硅太阳能电池的效率可能具有积极意义。
채용고온고상법제비료Na8 Al6 Si6 O24 Cl2∶M n화Na8 Al6 Si6 O24 Cl2∶Fe근홍외발광재료。측정료형광분적X사선분말연사（XRD ），급실온하적광치근홍외발사광보화격발광보。재400 nm자외광화602 nm가견광적격발하，Na8 Al6 Si6 O24 Cl2∶M n분말중적M n5＋（3 A2-3 T2，3 A2-1 E）발사료주발사봉위우1200 nm적근홍외광보。실험발현，M n화S공참제고료해분말적근홍외발광강도，문중대차제출료S2--M n5＋지간적능량전체궤리。재334화500 nm적격발하，Na8 Al6 Si6 O24 Cl2∶Fe분말중적Fe2＋（3 T1-5 E）발사료주발사봉위우1000 nm적홍외광보，해현상대제고규태양능전지적효솔가능구유적겁의의。
Na8Al6Si6O24Cl2 ∶Mn and Na8Al6Si6O24Cl2 ∶Fe NIR phosphors were prepared by a solid-solid reaction at high tem-perature .Their crystal structures of fluorescent powder were investigated by using X-ray powder diffraction (XRD) ,and their NIR emission spectrum and excitation spectrum were measured at room temperature .The main emission peak of Mn5+ in the Na8Al6Si6O24Cl2 ∶Mn phosphor was observed at 1 200 nm in the NIR spectral region under 400 or 602 nm excitation ,attribu-ting to the 3 A2 - 3 T2 and 3 A2 - 1 E transitions of Mn5+ ions .The characteristic NIR luminescence of Mn5+ in sodalite is greatly enhanced by co-doping manganese and sulfur .A mechanism of the energy transfer between S2- and Mn5+ was also proposed here .The main emission peak of Fe2+ ions in the Na8Al6Si6O24Cl2 ∶Fe phosphor was recorded at 1 000 nm in the NIR region under the excitation of 334 or 500 nm .This photoluminescence originated from the 3 T1 - 5 E transition of Fe2+ .Such an emission in the NIR region suggests a potential application in improving solar spectrum to enhance the efficiency of silicon solar cells .