{"title":"空穴主导雪崩倍增的短波长SiC紫外单光子探测器","authors":"苏琳琳 Su Linlin, 杨成东 Yang Chengdong","doi":"10.3788/cjl221289","DOIUrl":null,"url":null,"abstract":"制备并分析了SiC nip雪崩光电二极管(APDs)雪崩倍增的物理机制。与280 nm紫外光相比,在240 nm紫外光入射时,SiC nip APD表现出更高的增益和更大的单光子探测效率。在240 nm紫外光入射时,SiC nip APD表现为空穴主导碰撞离化过程,随着入射光波长增加到280 nm,电子和空穴共同主导碰撞离化过程。由于SiC中空穴的碰撞离化系数大于电子,空穴主导的碰撞离化过程将具有更大的光子雪崩概率和更高的增益。因此,得益于空穴主导雪崩倍增过程,SiC nip APD更适用于短波长紫外光探测。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"147 1","pages":"0"},"PeriodicalIF":1.8000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3788/cjl221289","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
空穴主导雪崩倍增的短波长SiC紫外单光子探测器
制备并分析了SiC nip雪崩光电二极管(APDs)雪崩倍增的物理机制。与280 nm紫外光相比,在240 nm紫外光入射时,SiC nip APD表现出更高的增益和更大的单光子探测效率。在240 nm紫外光入射时,SiC nip APD表现为空穴主导碰撞离化过程,随着入射光波长增加到280 nm,电子和空穴共同主导碰撞离化过程。由于SiC中空穴的碰撞离化系数大于电子,空穴主导的碰撞离化过程将具有更大的光子雪崩概率和更高的增益。因此,得益于空穴主导雪崩倍增过程,SiC nip APD更适用于短波长紫外光探测。
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