发光学报2012，Vol.33Issue(5)：504-508,5.DOI:10.3788/fgxb20123305.0504
氮化铝铬的制备及其光学性质
Synthesis and Photoluminescence Properties of Cr3+ Doped Aluminium Nitride
摘要
Abstract
Aluminium nitride and chromium nitride were synthesized by high temperature solid state method with aluminium, chromium and high purity nitrogen. Two types of methods were used to obtain Cr3+ -doped AlN: one is to nitride mixtures of aluminium and chromium, the other is to heat aluminium nitride and chromium nitride at 1 400 ℃ for 3 h under nitrogen. X-ray diffraction analyzer was used to measure the crystal structure of obtained samples. The excitation and emission spectra of the samples were measured by spectrometer. The obtained data showed that the excitation and emission spectra of Cr3+: A1N obtained by two methods are similar, two broad excited bands, peak at 400 nm and 500 nm, and the emission peak at 696 nm, while the intensity of the latter was higher than that of the former due to higher annealing temperature. According to the excitation and emission spectra of Cr3 +: A1N, Dq/B and the energy levels of Cr3+ ion in A1N were given. The obtained data showed that the emission of Cr3 + at 696 nm came from the first excited state 2E, which is similar to that of Cr3+ in Al2O3 host.关键词
氮化铝/光发射/Cr3+离子/能级Key words
AlN/ emission/ Cr3+ ion/ energy level分类
数理科学引用本文复制引用
杨艳民,李自强,焦福运,刘云峰,李志强,苏红新,杨志平..氮化铝铬的制备及其光学性质[J].发光学报,2012,33(5):504-508,5.基金项目
国家自然科学基金(50902042) （50902042）
河北省自然科学基金(E2010000283) （E2010000283）
中国博士后科研基金(20100480840)资助项目 （20100480840）
