We have successfully grown GaAs nanowires by Molecular Beam Epitaxy. In this work, we investigate the principal growth mechanisms underlying nanowire growth by measuring the morphology of the nanowires and comparing them to a simple growth model. From this, we are able to make several conclusions. The results of the data show that Adatom Diffusion contributes more to the overall growth rate tha...

Abstract We present a facile and low-cost undergraduate laboratory experiment to study exciton physics. Using simple abrasion technique create samples of thin-film van der Waals material spectrometer, we show that prominent excitonic features can be easily resolved in the optical transmission spectra semiconducting transition metal dichalcogenides at ambient conditions. Our method brings intere...

In article number 2203070, Weiwei Li, Zilong Wang, and co-workers present a study on Brunel harmonic generation in thin-film organic semiconductors exposed to intense ultrashort laser excitation. The authors find that resonant transitions induced by low-energy photons can substantially change the nonlinear behavior of materials manifesting as an early onset non-perturbative generation. image em...

It is shown that, in high-rate pulsed galvanostatic anodic dissolution of type CSN17335 and AISI 304 chromium–nickel steels electrolytes for electrochemical machining (ECM) (chloride, nitrate, mixed chloride–nitrate solutions with a conductivity 0.15 S/cm) using microsecond pulses duration 20–2000 ?s current densities the range 1–100 A/cm2, substantial fraction charge (up to ~40%) spent on form...

We explore the application of the semiconducting phases of YBaCuO thin films as a bolometer for uncooled infrared detection. For this study, four different structures were built with different types of buffer layers: YBaCuO on a Si substrate with and without a MgO buffer layer, and on an oxidized Si substrate with and without a MgO buffer layer. These films were all amorphous without a detectab...

Over the past two decades, extensive research on single-walled carbon nanotubes (SWCNTs) has elucidated their many extraordinary properties, making them one of the most promising candidates for solution-processable, high-performance integrated circuits. In particular, advances in the enrichment of high-purity semiconducting SWCNTs have enabled recent circuit demonstrations including synchronous...

Amorphous semiconducting materials have unique electrical properties that may be beneficial in nanoelectronics, such as low leakage current, charge memory effects, and hysteresis functionality. However, electrical characteristics between different or neighboring regions in the same amorphous nanostructure may differ greatly. In this work, the bulk and surface local charge carrier transport prop...