摘要
DuringthecrystalgrownbyVBM,thesolid/liquidinterfaceconfigurationsgreatlyinfluencethequalityofas-growncrystals.Inthispaper,finiteelementmethod(FEM)wasusedtosimulatethegrowthprocessofCdZnTecrystal.Theeffectsofdifferentcruciblemovingratesandtemperaturegradientofadiabaticzoneoncrystalgrowthrateandsolid-liquidinterfaceonfigurationwerestudiedaswell.Simulationresultsshowthatwhencruciblemovesattherateofabout1mm/h,whichisnearlyequaltocrystalgrowthrate,nearlyflatsolid/liquidinterfaceandlittlevariationofaxialtemperaturegradientnearitcanbeattained,whicharewellconsistentwiththeresultsofexperiments.CdZnTecrystalwithlowdislocationdensitycanbebtainedbyemployingappropriatecruciblemovingrateduringthecrystalgrowthprocess.
出版日期
2005年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)