CAJ | 학술논문

由于透明多晶钇铝石榴石(YAG)陶瓷在高功率全固态激光器中巨大的应用价值,所以其研究在近几年引起了广泛的关注.YAG陶瓷与其单晶材料相比,可以实现大尺寸激光晶体,高掺杂浓度,并且制备的成本低.我们报道水热方法制备的纯YAG和硅、铷掺杂YAG陶瓷纳米粉体中掺杂与煅烧温度对陶瓷相组分、晶格参数和晶粒尺寸的影响.通过XRD和透射电子显微镜表征了YAG陶瓷及掺杂粉体的结构及其受到掺杂和烧结的作用,利用光吸收和发射谱研究了共掺杂和煅烧温度对YAG陶瓷粉体光学特性的影响.结果表明Si4+和Nd3+的共掺杂提高了Nd3+在YAG纳米体中的可溶度,促进了YAG相的生成,单相纳米Si/Nd:YAG粉体在920℃煅烧温度即可获得.它的光学特性与报道的单晶Nd:YAG一致.
유우투명다정을려석류석(YAG)도자재고공솔전고태격광기중거대적응용개치,소이기연구재근궤년인기료엄범적관주.YAG도자여기단정재료상비,가이실현대척촌격광정체,고참잡농도,병차제비적성본저.아문보도수열방법제비적순YAG화규、여참잡YAG도자납미분체중참잡여단소온도대도자상조분、정격삼수화정립척촌적영향.통과XRD화투사전자현미경표정료YAG도자급참잡분체적결구급기수도참잡화소결적작용,이용광흡수화발사보연구료공참잡화단소온도대YAG도자분체광학특성적영향.결과표명Si4+화Nd3+적공참잡제고료Nd3+재YAG납미체중적가용도,촉진료YAG상적생성,단상납미Si/Nd:YAG분체재920℃단소온도즉가획득.타적광학특성여보도적단정Nd:YAG일치.
Pristine, Si-doped, and Si/Nd-doped yttrium aluminium garnet (YAG) nanoparticles were investigated using XRD, TEM, optical absorption and emission measurement. It was found that the coexistence of Si4+ and Nd3+increased the solubility of bothions and promoted the formation of YAG phase. Single-phase, nanocrystalline Si/Nd: YAG powders were obtained at calcination temperatures as low as 920 ℃. The optical behaviour of the Si/Nd: YAG nanopowders was similar to that of single-crystal Nd: YAG.