Multiple options for phenol on Si(111)7 × 7 revealed by high resolution photoemission

Adsorption of Acetonitrile on Si(111)-(7 × 7)

“…Studies on the surface chemistry of silicon have received much attention from the viewpoint of basic science. 1 − 5 Many previous reports in this area have focused primarily on the binding of molecules comprising unpolarized C=C or C≡C, 6 − 10 five-membered aromatics, 11 − 13 benzene and its derivatives, 14 − 17 and some other unsaturated cyclic hydrocarbons on pure Si surfaces. 18 , 19 These molecules can be adsorbed on Si(100) via [2 + 2] or/and [4 + 2] cycloaddition reactions.…”

“…The technologically most important material, silicon (Si), plays ubiquitous and irreplaceable roles in the development of micro- and optoelectronic devices and so on. Studies on the surface chemistry of silicon have received much attention from the viewpoint of basic science. − Many previous reports in this area have focused primarily on the binding of molecules comprising unpolarized CC or CC, − five-membered aromatics, − benzene and its derivatives, − and some other unsaturated cyclic hydrocarbons on pure Si surfaces. , These molecules can be adsorbed on Si(100) via [2 + 2] or/and [4 + 2] cycloaddition reactions. Turning our eyes to the polarized molecules, the adsorption behavior of organic molecules with the cyano group (CN), for example, the simplest nitrile of acetonitrile (CH 3 CN), has been also investigated on Si(100). − Several experimental , and theoretical ,− studies suggested a [2 + 2] cycloaddition reaction via the CN group (di-σ model).…”

Patterns of Reacted Adatoms in Adsorption of Acetonitrile on Si{111}-(7 × 7)

“…Studies on silicon-based surface chemistry have attracted a lot of attention from the perspective of basic science. − A lot of research works have been performed for the molecular adsorption on Si surfaces, − where the various types of molecules, from simple to complex ones, are used for exploring new functions of surfaces. Several works have concerned mainly on the molecules with unpolarized CC or CC, − multiple-membered aromatics, − ,, some unsaturated cyclic hydrocarbons, ,, zwitterionic organic molecules, , and benzene and its related molecules. − ,,− The adsorption behavior of polarized molecules with CN function, the simplest nitrile of acetonitrile, was reported on Si{100}. − For acetonitrile, it was suggested in several experimental , and theoretical ,− works that a [2 + 2] cycloaddition reaction through the CN function occurred (di-σ model). The acetonitrile adsorbed molecularly on Si{100} in a di-σ configuration, holding a CN functionality, followed by further multiple reactions. − …”

“…Several works have concerned mainly on the molecules with unpolarized C≡C or C=C, 8 − 12 multiple-membered aromatics, 13 − 15 , 29 , 30 some unsaturated cyclic hydrocarbons, 16 , 17 , 36 zwitterionic organic molecules, 31 , 32 and benzene and its related molecules. 18 − 21 , 28 , 31 − 35 The adsorption behavior of polarized molecules with C≡N function, the simplest nitrile of acetonitrile, was reported on Si{100}. 22 − 26 For acetonitrile, it was suggested in several experimental 22 , 23 and theoretical 22 , 24 − 26 works that a [2 + 2] cycloaddition reaction through the C≡N function occurred (di-σ model).…”

NiO-Based Electronic Flexible Devices

“…The assembling of these devices largely depends on the availability of flexible powering units such as batteries [15][16][17][18][19] solar cells [20], electrodes [21,22], transistors [23][24][25][26][27], display devices [28] conformable RFID (radio frequency identification) tags [29], and resistive random-access memories [30]. Traditional electronics are largely based on the integrated circuits mostly fabricated in rigid and planar semiconductor wafers, which fueled extensive research in associated phenomena on silicon surfaces [31][32][33][34][35][36][37][38][39][40][41]. However, they have limited applications in manufacturing flexible electronic devices due to the intrinsic rigidity of silicon wafers and the complex fabricating processes of its microstructure.…”