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Ultrafast and Polarization-Sensitive ReS2/ReSe2 Heterostructure Photodetectors with Ambipolar Photoresponse.
Li, Kuilong; Du, Changhui; Gao, Honglei; Yin, Tianhao; Zheng, Luyao; Leng, Jiancai; Wang, Wenjia.
Afiliación
  • Li K; International School For Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.
  • Du C; International School For Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.
  • Gao H; School of Information and Automation, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.
  • Yin T; International School For Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.
  • Zheng L; School of Information and Automation, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.
  • Leng J; International School For Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.
  • Wang W; International School For Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.
ACS Appl Mater Interfaces ; 2022 Jul 12.
Article en En | MEDLINE | ID: mdl-35820158
Recently, two-dimensional (2D) van der Waals (vdWs) heterostructures provided excellent and fascinating platforms for advanced engineering in high-performance optoelectronic devices. Herein, novel ReS2/ReSe2 heterojunction phototransistors are constructed and explored systematically that display high responsivity, wavelength-dependent ambipolar photoresponse (negative and positive), ultrafast and polarization-sensitive detection capability. This photodetector exhibits a positive photoresponse from UV to visible spectrum (760 nm) with high photoresponsivities about 126.56 and 16.24 A/W under 350 and 638 nm light illumination, respectively, with a negative photoresponse over 760 nm, which is mainly ascribed to the ambipolar photoresponse modulated by gate voltage. In addition, profound linear polarization sensitivity is demonstrated with a dichroic ratio of about ∼1.2 at 638 nm and up to ∼2.0 at 980 nm, primarily owing to the wavelength-dependent absorption anisotropy and the stagger alignment of the crystal. Beyond static photodetection, the dynamic photoresponse of this vdWs device presents an ultrafast and repeatable photoswitching performance with a cutoff frequency (f3dB) exceeding 100 kHz. Overall, this study reveals the great potential of 2D ReX2-based vdWs heterostructures for high-performance, ultrafast, and polarization-sensitive broadband photodetectors.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos