摘要
多元镧基六硼化物固溶体是异质金属元素进入六硼化镧(LaB_(6))晶格中取代部分La原子而形成含3种及以上元素的化合物。相比于单一LaB_(6),多元镧基六硼化物固溶体具有更低的电子逸出功和可调节的光吸收性能,在电子和光学领域应用前景广阔,受到了众多研究者的关注。由于异质金属元素种类众多,且组合方式多样,导致多元镧基六硼化物固溶体材料体系种类庞大且复杂多变。为此,本文系统梳理了近年来多元镧基六硼化物固溶体材料在晶体结构、制备工艺及光电性能3个方面的研究进展情况,分析了当前多元镧基六硼化物固溶体材料所面临的难题,并从理论、技术及应用3个方面对多元镧基六硼化物固溶体材料的未来发展方向进行了展望。
Multicomponent lanthanum based hexaborides are formed by solid solution of heterometallic elements entering into the lattice of lanthanum hexaboride(LaBe)to replace La atoms,which have great application prospects in electronics and optics due to their low work function and adjustable light absorption,and attract an increasing attention in recent years.However,multicomponent lanthanum based hexaborides have great varieties and complex change because of various kinds and countless combinations of heterometallic elements to replace La atoms.Herein,research progress on crystal structure,preparation technology and photoelectric performance of multicomponent lanthanum based hexaboride solid solutions were reviewed.Meanwhile,current challenges faced by multicomponent lanthanum based hexaboride solid solutions were analyzed.Lastly,future development directions of multicomponent lanthanum based hexaboride solid solutions were prospected in terms of theory,technology and application.
作者
余艺平
王松
李伟
Yu Yiping;Wang Song;Li Wei(Science and Technology on Advanced Ceramic Fibers and Composites Laboratory,College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China)
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2023年第5期1954-1962,共9页
Rare Metal Materials and Engineering
基金
国家自然科学基金(51902342)。
关键词
六硼化镧
固溶体
电子逸出功
光吸收
lanthanum hexaboride
solid solutions
work function
light absorption
