Kim, Chulki Oh, Kiwon Han, Seunghee Kim, Kyungkon Kim, Il Won Kim, Heesuk 2024-01-20T09:04:39Z 2024-01-20T09:04:39Z 2021-09-05 2014-08 1533-4880 https://pubs.kist.re.kr/handle/201004/126526 The direct spontaneous grafting of 4-nitrophenyl molecules onto n-doped hydrogenated amorphous silicon (a-Si: H) surfaces without external ultraviolet, thermal, or electrochemical energy was investigated. Clean n-doped a-Si: H thin films were dipped in a solution of 4-nitrobenzenediazonium salts (PNBD) in acetonitrile. After the modified surfaces were rinsed, they were analyzed qualitatively and quantitatively by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). XPS and AFM results show that the reaction of an n-doped a-Si: H thin film with PNBD self-terminates without polymerization after 5 h, and the surface number density of 4-nitrophenyl molecules is 4.2x10(15)/cm(2). These results demonstrate that the spontaneous grafting of nitrophenyl layers onto n-doped a-Si: H thin films is an attractive pathway toward forming interfaces between a-Si: H and organic layers under ambient conditions. English AMER SCIENTIFIC PUBLISHERS DIAZONIUM SALTS ELECTROCHEMICAL REDUCTION COVALENT MODIFICATION CRYSTALLINE SILICON VAPOR-DEPOSITION ORGANIC LAYERS CARBON MONOLAYERS FUNCTIONALIZATION STABILIZATION Electroless Chemical Grafting of Nitrophenyl Groups on n-Doped Hydrogenated Amorphous Silicon Surfaces Article 10.1166/jnn.2014.8449 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.8, pp.6309 - 6313 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 14 8 6309 6313 scie scopus 000333579100134 2-s2.0-84906545982 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article DIAZONIUM SALTS ELECTROCHEMICAL REDUCTION COVALENT MODIFICATION CRYSTALLINE SILICON VAPOR-DEPOSITION ORGANIC LAYERS CARBON MONOLAYERS FUNCTIONALIZATION STABILIZATION Amorphous Silicon Surface Organic Monolayer Spontaneous Reaction XPS