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Enhanced second‐harmonic generation (SHG) responses are reported in monolayer transition metal dichalcogenides (e.g., MX2, M: Mo, W; X: S, Se) due to the broken symmetries. The 3R‐like stacked MX2 spiral structures possessing the similar broken inversion symmetry should present dramatically enhanced SHG responses, thus providing great flexibility in designing miniaturized on‐chip nonlinear optical...
Introducing heteroatom into catalyst lattice to modulate its intrinsic electronic structure is an efficient strategy to improve the electrocatalytic performance in Li–O2 batteries. Herein, Cu‐doped CoS2 (Cu–CoS2) nanoparticles are fabricated by a solvothermal method and evaluated as promising cathode catalysts for Li–O2 batteries. Based on physicochemical analysis as well as density functional theory...
Micro‐Supercapacitors
In article number 2207634, Hui Ying Yang and co‐workers develop an innovative stretchable micro‐supercapacitor with excellent resistance to freezing. Using digital light processing (DLP) 3D printing technology, an interdigital electrode with octet‐truss lattice structure has been designed to enhance the electrochemical performance of the micro‐supercapacitor. It is anticipated...
Recently, stretchable micro‐supercapacitors (MSCs) that can be easily integrated into electronic devices have attracted research and industrial attentions. In this work, three‐dimensional (3D) stretchable MSCs with an octet‐truss electrode (OTE) design have been demonstrated by a rapid digital light processing (DLP) process. The 3D‐printed electrode structure is beneficial for electrode‐electrolyte...