Synthesis of Metal-Capped Semiconductor Nanowires from Heterodimer Nanoparticle Catalysts

• DOI: 10.1021/jacs.0c09222
• Publication Date: 2020-10-20T15:22:40Z
• Authors: Bo Shen; Liliang Huang; Jiahong Shen; Lingyuan Meng; Edward J. Kluender; Chris Wolverton; Bozhi Tian; Chad A. Mirkin
• Keywords: 02 engineering and technology; 0210 nano-technology; 01 natural sciences; 0104 chemical sciences

Semiconductor nanowires (NWs) capped with metal nanoparticles (NPs) show multifunctional and synergistic properties, which are important for applications in the fields of catalysis, photonics, electronics. Conventional colloidal syntheses this class hybrid structures require complex sequential seeded growth, where each section requires its own set growth conditions, methods preparing such wires not universal. Here, we report a new general method synthesizing metal-semiconductor nanohybrids based on particle catalysts, prepared by scanning probe block copolymer lithography, chemical vapor deposition. In process, metallic heterodimer NPs were used as catalysts NW to form semiconductor NWs particles (Au, Ag, Co, Ni). Interestingly, processes regioselective controlled composition used. Using systematic experimental approach, paired density functional theory calculations, able postulate three different modes, one without precedent.