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Creators/Authors contains: "Velázquez, Rafael"

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  1. ; ; ; ; (, Nanomaterials)
    null (Ed.)
    This study presents a fast and effective method to synthesize 2D boron nitride/tungsten nitride (BN–WN) nanocomposites for tunable bandgap structures and devices. A few minutes of synthesis yielded a large quantity of high-quality 2D nanocomposites, with which a simple, low-cost deep UV photo-detector (DUV-PD) was fabricated and tested. The new device was demonstrated to have very good performance. High responsivity up to 1.17 A/W, fast response-time of lower than two milliseconds and highly stable repeatability were obtained. Furthermore, the influences of operating temperature and applied bias voltage on the properties of DUV-PD as well as its band structure shift were investigated. 
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    Full Text Available 
  2. ; ; ; (, ACS Applied Materials & Interfaces)
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  3. ; ; ; ; (, DSIAC journal)
    null (Ed.)
    This article focuses on developing a broadband ultraviolet (UV) photodetector (PD) based on superflat, boron-doped ultrananocrystalline diamond (UNCD) nanowire (NW) arrays functionalized with platinum (Pt) nanoparticles and capable of withstanding high operating temperatures. This PD exhibits an extremely large responsivity (1,224 A/W) to 300-nm light radiation at zero bias while taking advantage of diamond’s unique stability from its ability to function at temperatures as high as 200 °C. Additionally, it has a fast response time of 17 ms. 
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    Accepted Manuscript Full Text Available
  4. ; ; ; ; (, Journal of Physics D: Applied Physics)
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