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Uncovering the thickness‐dependent electronic property and environmental stability for 2D materials are crucial issues for promoting their applications in high‐performance electronic and optoelectronic devices. Herein, the extrahigh air stability and giant tunable electronic bandgap of chemical vapor deposition (CVD)–derived few‐layer PdSe2 on Au foils, by using scanning tunneling microscope/spectroscopy...
In article number 2000754, Jijun Zhao, Yanfeng Zhang, and co‐workers achieve onsite characterizations of the atomic‐scale structure of few‐layer PdSe2 synthesized on Au foils, and establish a one‐to‐one correspondence between the electronic bandgap and thickness from bilayer to bulk by using scanning tunneling microscopy/spectroscopy. The robust air stability of PdSe2 is also demonstrated by the atom‐scale...
In this paper, a series of Na3Ca6(1−x)(PO4)5:xEu2+ (NCP:xEu2+, 0≤x≤4%) phosphors were prepared by conventional solid-state reaction method, and their photoluminescence properties were studied. Upon 365nm excitation, the typical NCP:2%Eu2+ phosphor shows an asymmetric bluish green emission band with the dominant peak at 498nm which could be attributed to the 4f65d1-4f7 transition of Eu2+. By measuring...
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