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Decipher the Wavelength and Intensity Using Photothermoelectric Detectors.
Zhou, Jiamin; Xu, Shengduo; Shuai, Yi; Sun, Qiang; Ma, Huangshui; Wang, Chao; Wu, Haijuan; Tan, Shanshan; Wang, Zegao; Yang, Lei.
Afiliación
  • Zhou J; School of Materials Science & Engineering, Sichuan University, Chengdu, Sichuan 610064, People's Republic of China.
  • Xu S; Institute of Science and Technology Austria (ISTA), Am Campus 1, 3400 Klosterneuburg, Austria.
  • Shuai Y; School of Materials Science & Engineering, Sichuan University, Chengdu, Sichuan 610064, People's Republic of China.
  • Sun Q; State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China.
  • Ma H; State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China.
  • Wang C; Southwest Institute of Technical Physics, Chengdu, Sichuan 610041, People's Republic of China.
  • Wu H; School of Materials Science & Engineering, Sichuan University, Chengdu, Sichuan 610064, People's Republic of China.
  • Tan S; School of Materials Science & Engineering, Sichuan University, Chengdu, Sichuan 610064, People's Republic of China.
  • Wang Z; School of Materials Science & Engineering, Sichuan University, Chengdu, Sichuan 610064, People's Republic of China.
  • Yang L; School of Materials Science & Engineering, Sichuan University, Chengdu, Sichuan 610064, People's Republic of China.
ACS Appl Mater Interfaces ; 16(36): 47923-47930, 2024 Sep 11.
Article en En | MEDLINE | ID: mdl-39194354
ABSTRACT
Broadband photodetectors that can decipher the wavelength (λ) and intensity (I) of an unknown incident light are urgently demanded. Photothermoelectric (PTE) detectors can achieve ultrabroadband photodetection surpassing the bandgap limitation; however, their practical application is severely hampered by the lack of deciphering strategy. In this work, we report a variable elimination method to decipher λ and I of the incident lights based on an integrated Ag2Se film-based PTE detector. Nanostructured Ag2Se films with controlled thickness are synthesized using an ion sputtering of Ag and a room-temperature selenization method and then assembled into a detector. Under identical illumination, Ag2Se films of different thicknesses produce varying output photothermal voltages, influenced by factors including λ. By establishing a direct relationship between the photothermal voltage and the absorption of Ag2Se films of varied thickness, we successfully eliminate variables independent of λ, thus determining λ. Subsequently, I is determined by the calibrated responsivity relationship using obtained λ. Our PTE detector achieves a broadband spectrum from 400 to 950 nm and high accuracy, with deviations as low as ∼2.63 and ∼0.53% for deciphered λ and I, respectively. This method allows for self-powered broadband decipherable photodetection without a complex device architecture or computational assistance, which could boost the research enthusiasm and promote the commercialization of PTE broadband detectors.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos