Based on previous reports, the CNT-Si structure can be considered as a Schottky junction, in which CNT membrane serves as metallic materials while silicon wafer serves as a semiconductor [8, 11, 15]. Figure 3 is the corresponding energy band diagram for CNT-SiNW junction.
Another light-absorption test showed that the sample was a semiconductor--it conducted electrical currents, although the extreme pressure needed to create nonmolecular nitrogen makes it unlikely it could ever serve as a useful semiconductor, says team member Alexander Goncharov.
This 3D ITO nanodome structures serve as a window layer of photo-reactive Si semiconductor material.
This facile method takes advantage of the anisotropic diffusion/reaction of metals in crystalline elemental semiconductors and the ensuing morphology-controlled growth or sublimation of silicides/germanides. Our results suggest that this method can serve as a general lithography-free approach to fabricate metal-semiconductor compounds and make micro-/nanoscale patterns on semiconductor surfaces.
The present study may serve as a basis for designing other novel morphology from semiconductor oxides for gas-sensing applications.
In this mixed-phase system, the tetragonal inclusions function as carrier recombination sinks that reduce the transparency threshold, in loose analogy to inorganic semiconductor quantum wells, and may serve as a model for engineering improved perovskite gain media.
After Pb adsorption, the CNT and COOH-CNT conductivity changed, from semiconductor to half-metallic for CNT and from semiconductor to metallic for COOH-CNT, which can serve as a signal for Pb sensor.
Obviously, above the cutoff of P3HT, the organic coating can serve as a non-absorbing dielectric shell, which drastically increased the absorption in vertical semiconductor NWs.
The researchers hope their predictive approach can serve as a blueprint for other research groups working to find a better material for organic semiconductors.
Most commercial solar cells use inorganic semiconductors to convert sunlight into a steady stream of electrons that can serve as a power source.
Electrical bias stress measurements which can serve as a figure of merit for performance stability for a TFT device reveal Sr- and Ba-doped semiconductors to exhibit enhanced electrical stability and reduced threshold voltage shift compared to IGZO irrespective of the process temperature and preparation method.
