The straight bandgap, high electron mobility, and good light absorption properties of gallium arsenide (GaAs) nanowires (NWs) make them great candidates for infrared photodetectors. In this study, we describe the synthesis of high-quality single-crystal GaAs NWs by solid-source chemical vapor deposition (SSCVD) and evaluate their photodetection performance. The prepared GaAs NWs exhibit excellent optoelectronic properties at a wavelength of 792 nm, with a photoresponsivity(R) of 3.65 A/W and a detectivity (D*) of 3.68×1011 Jones, as well as excellent sensitivity and reproducibility. These findings emphasize the potential application of GaAs NWs in photodetector technology.
InGaAs nanowires (NWs) are an important tunable direct bandgap III-V semiconductor nanomaterial, which have wide applications in the field of near-infrared photoelectric detections. In this work, high-quality InxGa1-xAs NWs with different compositions (In0.35Ga0.65As, In0.41Ga0.59As, In0.53Ga0.47As) are synthesized by two-step chemical vapor deposition. With the increase of In component of InxGa1-xAs NWs, the photocurrent and the responsivity of the photodetectors increase under the same optical power density. More importantly, high-performance near-infrared photodetectors are achieved based on the as-grown In-rich In0.53Ga0.47As NWs with a large responsivity of 5.01×103 A/W and a high detectivity of 8.22×1010 Jones under 1064 nm irradiation. This work indicates the great application potential of InxGa1-xAs NWs for next-generation high-performance semiconductor optoelectronic devices.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.