CAJ | 학술논문

本文采用两步阳极氧化法在0.5mol/L的草酸溶液中制备了多孔且排列有序的多孔阳极氧化铝（PAA）薄膜，并对薄膜进行不同条件的退火后处理，通过对PAA薄膜的热释光(TL)特性表征和机理分析，研究了基底及后处理中退火时间、退火温度及退火气氛等条件对其热释光特性的影响．结果表明，相同辐照剂量下，去除铝基底的双通PAA薄膜，接触辐射面积大，吸收辐射能量多，表现出更强的热释光响应；相同退火环境中，经γ辐照后的PAA薄膜的TL特性随退火处理的时间延长而增强；退火时间均控制为4h时，薄膜的TL强度随退火温度的升高也明显增强，在空气中经600℃退火的PAA薄膜显示出最大的TL强度；并且PAA薄膜在空气中退火后的TL发光强度明显高于在真空中退火后的强度．
본문채용량보양겁양화법재0.5mol/L적초산용액중제비료다공차배렬유서적다공양겁양화려（PAA）박막，병대박막진행불동조건적퇴화후처리，통과대PAA박막적열석광(TL)특성표정화궤리분석，연구료기저급후처리중퇴화시간、퇴화온도급퇴화기분등조건대기열석광특성적영향．결과표명，상동복조제량하，거제려기저적쌍통PAA박막，접촉복사면적대，흡수복사능량다，표현출경강적열석광향응；상동퇴화배경중，경γ복조후적PAA박막적TL특성수퇴화처리적시간연장이증강；퇴화시간균공제위4h시，박막적TL강도수퇴화온도적승고야명현증강，재공기중경600℃퇴화적PAA박막현시출최대적TL강도；병차PAA박막재공기중퇴화후적TL발광강도명현고우재진공중퇴화후적강도．
In this work , porous anodic alumina(PAA) membranes with ordered pore arrays were prepared in 0.5M /L oxalic acid by a two-step anodization method. We have investigated the influence of aluminum substrate, annealing time, annealing temperature and annealing atmosphere on the thermoluminescence (TL) characterization of porous anodic alumina films and discussed the influence mechanisms. TL measurements show that the porous anodic alumina films without aluminum substrate present stronger TL intensity under the same irradiation dose, which can be explained by its more radiation energy absorption resulted by its larger area exposure to radiation.The TL intensity of the annealed samples increases with extension of annealing time afterγirradiation at the same annealing atmosphere;When the annealing time was limited to 4 hours, the TL intensity of the samples also increases with elevated annealing temperature, and reaches the maximum when the annealing temperature T=600℃in air. The TL intensity of porous anodic alumina films annealed in the air is significantly stronger than that annealed in vacuum.