Grafting of 1-alkynes to hydrogen-terminated (100)silicon surfaces

Hydrogen-terminated, atomically flat, 1×1 (un)reconstructed, (100)-oriented, silicon surfaces have been functionalized with 1-octyne and then studied via X-ray photoelectron spectroscopy. The C 1s signal shows that the addition of the hydrocarbon chain occurs through the formation of environmentally stable Si-C bonds, in agreement with hydrosilation as the major grafting route. PACS 82.65.+r; 68.39.-p; 73.20.-r; 79.60.Jv