Construction of GaN/Ga₂O₃ p–n junction for an extremely high responsivity self-powered UV photodetector

Abstract

A self-powered ultraviolet photodetector with an extremely high responsivity (54.43 mA W−1) was fabricated by constructing p–n junction of GaN/Ga2O3 films.

Strengthening Mechanisms in Low Density Fe–26Mn–xAl–1C Steels

“…It was stated that κ‐carbides can precipitate even during rapid cooling from the solution treatment temperature provided that the driving force for precipitation is adequate . Increasing Al‐content can increase the driving force for the precipitation of κ phase . It was pointed out that κ‐carbides can form during quenching if Al‐ content exceeds 10 wt% and the alloy contains adequate C‐content, which was observed in our case.…”

Fuel Cell Electrolytes of Polybenzimidazole Membranes Cross‐linked with Bis(chloromethyl) Arenes

“…The synthesis of PBI was adapted from literature [25,35,42], and a short description is presented here. DAB and IPA were dried at 110°C under argon overnight before charged in equimolar amounts (34.58 g/161.39 mmol and 26.77 g/ 161.13 mmol, respectively) to a dry reaction vessel equipped with an overhead mechanical stirrer, argon in-and outlets and a thermometer.…”

“…The Fenton's test was carried out as described in literature [25,44,45]. The samples (1 6 cm 2 ) were dried under vacuum at 110°C for a minimum of 16 h to obtain the dry weight.…”

“…Covalent cross-linking is another effective approach and can be achieved in a non-specific manner by heat treatment of the pristine membranes at temperatures up to 350°C [24]. Better control of the degree of cross-linking and the chemistry involved can be obtained by reacting the polymer with electrophiles containing at least two functionalities, such as a,a -dibromo-p-xylene [25], 1,3,5-tris(bromomethyl)benzene [26], dichloromethyl phosphinic acid [27], divinyl sulfone [28], epoxides [29][30][31][32][33], silanes [34] or by employing Diels-Alder chemistry [35]. Recently, a sequential method for the preparation of polybenzimidazole network membranes was reported [36].…”

The inhibition profiles of 4'‐acylpyrrole–5‐fluoroindolin‐2‐ones with a C‐3' side chain for VEGFR2, PDGFR‐β, and FGFR‐1 protein kinases

“…Structurally close to sunitinib, scaffold 3 was expected to inhibit VEGFR2 and PDGFR‐β as sunitinib does. For FGFR‐1, which also plays an important role in cancer angiogenesis, we believed that the C‐3′ side chains with a proper terminus would enhance the inhibitory potency of 3 based on the literature and our previous studies . The C‐4′‐acyl/C‐5′ substituents in 3 were built for patent purpose and could also be optimized.…”