CAJ | 학술논문

以异丙醇为溶剂,醇热法制备Zn0.5Cd0.5S和Ag2S或CuS掺杂的Zn0.5Cd0.5S纳米晶体,考察了这些纳米晶体在可见光区域的光致发光性能.结果表明,反应温度和反应时间、掺杂剂的浓度和种类对Zn0.5Cd0.5S的发光性能有很大的影响,相比未掺杂Zn0.5Cd0.5S纳米晶体而言,Ag2S或CuS掺杂后其光致发光强度明显增强、半高宽更宽.
이이병순위용제,순열법제비Zn0.5Cd0.5S화Ag2S혹CuS참잡적Zn0.5Cd0.5S납미정체,고찰료저사납미정체재가견광구역적광치발광성능.결과표명,반응온도화반응시간、참잡제적농도화충류대Zn0.5Cd0.5S적발광성능유흔대적영향,상비미참잡Zn0.5Cd0.5S납미정체이언,Ag2S혹CuS참잡후기광치발광강도명현증강、반고관경관.
Zn0.5Cd0.5S nanocrystals and their derivatives doped with Ag2S or CuS were synthesized via a solvothermal process using isopropanol as the solvent. The optical properties of the as-prepared samples were investigated in the visible light region. The results show that the nature and concentration of dopants as well as preparation conditions (reaction temperature and time) have a great influence on the photoluminescence (PL) spectra of Zn0.5Cd0.5S nanocrystals. The Zn0.5Cd0.5S nanocrystals doped with CuS and Ag2S exhibit a stronger PL intensity and wider FWHM (full width at half maximum) in the visible light region compared with the undoped Zn0.5Cd0.5S.