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http://dx.doi.org/10.1103/physrevb.43.2315DOI Listing

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Article Synopsis
  • * The created scaffold, made from a Germanium Selenium co-doped polylactic acid and tricalcium phosphate, has both piezoelectric and photothermal capabilities, aiding in nerve and bone regeneration when activated by ultrasound.
  • * In tests on rabbits with significant bone defects, the scaffold showed promising results in encouraging bone growth and nerve ingrowth while also releasing anti-tumor selenium to combat osteosarcoma effectively.
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Low symmetric sub-wavelength array enhanced lensless polarization-sensitivity photodetector of germanium selenium.

Sci Bull (Beijing)

January 2023

State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:

Article Synopsis
  • - Polarization-sensitive photodetectors are important for applications in national security, medical diagnosis, and aerospace, but their performance has been limited by low polarization ratios, typically under 10.
  • - A new sub-wavelength array (SWA) structure using 2D germanium selenium (GeSe) enhances polarization sensitivity, increasing the polarized photocurrent ratio from 1.6 to 18 by manipulating charge distribution and utilizing nano-scale design.
  • - The improved GeSe SWA photodetector shows a wide power range of 40 dB at 808 nm and can detect weak light conditions, enhancing the potential for polarized imaging sensors in practical applications.
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