CAJ | 학술논문

利用AlCl3和NaN3直接反应合成出六方结构氮化铝纳米线.变温光致发光谱显示,在可见光范围内有两个半高宽大约为5 nm的尖锐辐射峰,中心波长分别位于413 nm和422 nm处.同时,在近紫外区还有一个较宽的辐射带,随着温度升高,该辐射峰发生了明显的红移现象,其中心波长随温度线性变化.理论和实验分析表明,413 nm辐射与AlN本身性质无关,而422 nm辐射峰是与A1有关的两种本征缺陷所致.
이용AlCl3화NaN3직접반응합성출륙방결구담화려납미선.변온광치발광보현시,재가견광범위내유량개반고관대약위5 nm적첨예복사봉,중심파장분별위우413 nm화422 nm처.동시,재근자외구환유일개교관적복사대,수착온도승고,해복사봉발생료명현적홍이현상,기중심파장수온도선성변화.이론화실험분석표명,413 nm복사여AlN본신성질무관,이422 nm복사봉시여A1유관적량충본정결함소치.
The hexagonal AlN nanowires are synthesized through the direct reaction of AlCl3 with NaN3. The photoluminescence spectra at different temperatures show that the product has two relatively narrow emission peaks with a full width at half maximum of about 5 nm centered at 413 nm and 422 nm respectively, as well as an emissive band in the near ultraviolet area. As the temperature rises, the emission band has an obviously red shift, which is proportional to temperature. Theoretical and experimental analyses show that the emission peak at 413 nm does not relate to the native elements of AlN, and the peak at 422 nm is caused by Al related native defects.