CAJ | 학술논문

为提高碘化汞多晶薄膜的气相定向生长效果，文中利用氧化汞和氢碘酸在高纯去离子水中生长了碘化汞籽晶层。配制出了[H g2＋]∶[I-]＝1∶3和1∶6两种不同溶度溶液，研究了溶质浓度对籽晶层生长的影响。采用LEICA-DM2500P偏光显微镜和UB200i生物显微镜研究籽晶层的宏观生长形貌，分析了溶液中碘化汞在衬底表面生长形貌和形成薄膜的过程。研究结果表明：当[H g2＋]∶[I-]＝1∶3时容易形成四方形晶粒，生长形貌受晶体结构因素影响；而[Hg2＋]∶[I-]＝1∶6时容易形成密枝晶，其形貌受分子扩散动力学因素控制。
위제고전화홍다정박막적기상정향생장효과，문중이용양화홍화경전산재고순거리자수중생장료전화홍자정층。배제출료[H g2＋]∶[I-]＝1∶3화1∶6량충불동용도용액，연구료용질농도대자정층생장적영향。채용LEICA-DM2500P편광현미경화UB200i생물현미경연구자정층적굉관생장형모，분석료용액중전화홍재츤저표면생장형모화형성박막적과정。연구결과표명：당[H g2＋]∶[I-]＝1∶3시용역형성사방형정립，생장형모수정체결구인소영향；이[Hg2＋]∶[I-]＝1∶6시용역형성밀지정，기형모수분자확산동역학인소공제。
In order to improve the orientated grow th of HgI2 films in vapor ,polycrystalline HgI2 seed layers were grown on ITO conductive glass in HgO-HI-H2 O by solvent evaporation at constant temperature .Two solutions of different concentrations of [Hg2+ ]∶[I-]=1∶6 and 1∶3 were obtained . Macroscopic morphology of seed layers grown in different concentration solutions was investigated using LEICA DM2500P polarizing microscope and UB200i biological microscope .Formation of seed layers were studied according to molecular diffusion dynamics and crystallography .T he results indicate that tetragonal crystal grain grow s easier in solution of [Hg2+ ]∶[I-]=1∶3 controlled by factors of crystal structure ,w hereas dense branch morphology (DBM ) is more convenient to form in solution of [Hg2+ ]∶[I-]=1∶6 predominated by molecular diffusion dynamics .Discussions about future improvements of growing mercuric iodide seed layers in the HgO-HI-H2 O system are included .