????????vdW???????????????傷???interlayer excitons???????????IR?????????????????????????????????????????????????廯????TMDC????????????????傷????????????????????????????TMDC????????????

????????????????????????????????о????Korea Research Institute of Chemical Technology????????????????????Chungnam National University??????????ε???????????Ulsan National Institute of Science and Technology??????????????Advanced Functional Materials????????????“High-Performance Infrared Photodetectors Driven by Interlayer Exciton in a Van Der Waals Epitaxy Grown HfS2/MoS2 Vertical Heterojunction”????????????????????????????Minkyun Son??Hanbyeol Jang??Dong-Bum Seo?????????Ki-Seok An??

?????о???????????????傷??????????????????????????ú?????????????????????CVD?????????????????????????????о?????????????????????????????????

?о???????HfS₂??MoS₂?????????????????????????????????傷????????????????????????HfS₂??????????????HfS₂??MoS₂????????????band offset?????????????????CVD?????У?HfS₂????MoS₂????????????????????????н??????????????????????傷?????????????????????1a???????????CVD???????HfS₂/MoS₂??????????????????

?1 HfS₂/MoS₂??????????????????????

?о???????????????????·???PL???????????????MoS₂??HfS₂/MoS₂??????????????????????2a???2c??????????????????????????????о????????X?????????????????XPS????HfS₂/MoS₂????????????????????????2d???2f?????

?2 ??MoS₂??HfS₂/MoS₂?????????????HfS₂/MoS₂??XPS???????

???????????HfS₂??MoS₂??????????????о???????????????????????????????HRTEM?????????????????????任??FFT??????????????3?????

?3 HfS₂/MoS₂????????HRTEM????FFT????

??????о?????????HfS₂/MoS₂???????????????????????????о????4a?????HfS₂/MoS₂??????????????????????????????4b??4d??????о???????????MoS₂?????????????????HfS₂/MoS₂???????????????????????????????4e???4h?????

?4 ????HfS₂/MoS₂????????????????????MoS₂????????????

????о???????????????????850 nm??980 nm??1550 nm???????HfS₂/MoS₂??????????????????????????5a???5d??????5e??????????????V_DS??=−5 V??5 V???HfS₂/MoS₂???????band alignment???в?傷?????μ???????????

?5 ????HfS₂/MoS₂????????????????????傷??????????

???????????????о????????????CVD??????HfS₂/MoS₂?????????????????????????CVD?????У?HfS₂????MoS₂???????????????????н????????????????????????????????Ч?????傷?????????????HfS₂/MoS₂?????????????????????????470 nm??????????????D*??=5 × 10¹⁴ Jones????MoS₂?????????????36????????????????1550 nm?????????ò????????HfS₂??MoS₂????????Χ????????HfS₂/MoS₂?????????????????????????????R??=600 A/W??D*=7 × 10¹³ Jones?????????????????????60 µs??71 µs???????о???α?????????CVD??????????TMDC???????傷?????????????????????????????????????????????????????????????·??

?????о??????????????о??????NRF??2021M3H4A3A01055854??2021M3H4A3A02099208??????????????

?????????https://doi.org/10.1002/adfm.202308906

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???ī??г?????????????-2023?桷

????????????????????г?-2024?桷

?????????????г?-2023?桷

??????????г???????-2022?桷