근적외선 센서를 위한 Ag2Se 나노 입자 합성 및 광전기적 특성
Synthesis and Optoelectronic Characteristics of Ag2Se Nanoparticle for NIR Sensor Application
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In this study, Ag2Se nanoparticles were synthesized by employing the colloidal method. The synthesized Ag2Se nanocrystals were spherical in shape with a diameter of approximately 4 nm and had high crystallinity. These attributes of Ag2Se nanocrystals were deter- mined through images obtained from a high resolution transmission electron microscope. Thin films comprising the synthesized Ag2Senanoparticles had an optical band gap of 1.5 eV. Furthermore, fabricated NIR sensors comprising Ag2Se nanoparticles exhibited a high detectivity of 5.5×109 Jones (above 1×109) at room temperature, leading to low power consumption.
Abstract
In this study, Ag2Se nanoparticles were synthesized by employing the colloidal method. The synthesized Ag2Se nanocrystals were spherical in shape with a diameter of approximately 4 nm and had high crystallinity. These attributes of Ag2Se nanocrystals were deter- mined through images obtained from a high resolution transmission electron microscope. Thin films comprising the synthesized Ag2Senanoparticles had an optical band gap of 1.5 eV. Furthermore, fabricated NIR sensors comprising Ag2Se nanoparticles exhibited a high detectivity of 5.5×109 Jones (above 1×109) at room temperature, leading to low power consumption.
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