Publications by authors named "Huayao Tu"
The ternary transition metal oxides are promising anode material for lithium-ion batteries (LIBs). However, their practical applications are greatly hindered by the poor conductivity and huge volume changes. To solve the issues, urchin-like inverse spinel manganese (Mn) doped NiCoO hierarchical microspheres were fabricated through a facile hydrothermal approach and subsequent annealing treatment.
View Article and Find Full Text PDFCarbon nanomaterials have elicited much research interest in the energy storage field, but most of them cannot be used at high temperatures. Thus, a supercapacitor with high energy and desired stability at high temperatures is urgently required. Herein, BCN nanotubes (BCNNTs) with excellent performance at high temperatures are generated on carbon fibers by optimizing the ratio of B and N.
View Article and Find Full Text PDFAmbipolar Photoresponsivity in an Ultrasensitive Photodetector Based on a WSe/InSe Heterostructure by a Photogating Effect.
ACS Appl Mater Interfaces
October 2021
Article Synopsis
- Ambipolar photoresponsivity is mainly affected by defects that are hard to control, which can slow down photodetector response times.
- Researchers have developed a photodetector using vertical p-WSe/n-InSe heterostructures that shows tunable ambipolar photoresponsivity and extremely high rates, reaching photoresponsivity values between -1.76 × 10 and 5.48 × 10 A/W.
- This photodetector also supports broadband photodetection (365-965 nm), has a specific detectivity of 5.8 × 10 Jones, an external quantum efficiency of 1.86 × 10%, and a fast response time of 20.8 ms, suggesting great potential