TiO₂ nanopores were fabricated on gold interdigitated silicon substrate by electrochemical anodization. The photoresponse of TiO₂ nanopores under illumination was studied in a wide range of wavelengths from the near ultraviolet to infrared regions. The crystal structure and morphology of the samples was characterized by XRD and SEM. The electrical properties have been studied by making measurements of I–V curves with and without illumination. The manufactured device showed an ultrafast photoresponse with response and recovery time values reaching 10 ms/70 ms at 395 nm, 50 ms/230 ms at 560 nm and 7 ms/14 ms at 945 nm at bias voltage 1 V. The results suggest that the obtained TiO₂ nanopores via anodized method are promising for broadband optoelectronic from ultraviolet to near-infrared range device applications.

Improving the storage capacity of helium atoms in irradiation-resistant materials is a problem worthy of research. In the present study, the helium atoms storage capacity of nanopore graphene/tungsten composites were evaluated via molecular dynamics (MD) simulation. The simulation results indicate helium atoms could be effectively absorbed in the nanopore due to the significantly reduced helium formation energy. The absorption behavior of helium atoms by graphene nanopores was shown to be a way to relieve stress concentration, and delay the formation of large-sized helium bubbles, which can alleviate the irradiation embrittlement.

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Jenny
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Journal of Nano Research & Applications