Matches in SemOpenAlex for { <https://semopenalex.org/work/W143802761> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W143802761 abstract "Despite its excellent electronic properties, germanium is limited by the low passivation of its oxide. Therefore, new dielectrics must be developed. Furthermore, germanium sensitivity requires the creation of a passivation layer on the surface. Even if numerous studies were carried out on new inorganic dielectrics, this research project concerns the design, the realization and the development of thin passivating organic dielectric films on germanium for nanoelectronics applications. This work principally involves the synthesis of new push-pull molecules (π-conjugated systems bearing a donor and an acceptor part) and germanium functionalization. New donor-acceptor systems and π-conjugated linear systems containing an anchoring group were synthesized through new ways. In particular, a series of azobenzene derivatives with different acceptors (fluorinated groups, pyridinium, nitro) and donors (amines, alkoxyl) and various anchoring groups (thiol, carboxylic acid, diazonium salt, triazene) was obtained. Meanwhile, preparation and functionalization of germanium surfaces was studied. A new process to etch the native oxide and obtain halogenated surfaces with low roughness was developed. Germanium substrates were then functionalized with thiol but also with diazonium salts. This new spontaneous grafting process considerably decreased the reaction time (15 minutes spontaneous grafting of diazonium salts against 3 days for self-assembled monolayers of thiol formation) in mild conditions. Thin films obtained present stability similar to the one of thiol monolayers. Π-conjugated linear systems were grafted both as thiol and diazonium salt to probe the influence of the aromatic core on the film formation and properties. Finally, push-pull systems were also grafted. Electronic studies on gold with π-conjugated systems were realized. These studies were extended to germanium and allow expecting significant results with push-pull molecules." @default.
- W143802761 created "2016-06-24" @default.
- W143802761 creator A5001814261 @default.
- W143802761 date "2012-10-22" @default.
- W143802761 modified "2023-09-23" @default.
- W143802761 title "Grafting of 'push-pull' systems on germanium: towards the electric passivation" @default.
- W143802761 hasPublicationYear "2012" @default.
- W143802761 type Work @default.
- W143802761 sameAs 143802761 @default.
- W143802761 citedByCount "0" @default.
- W143802761 crossrefType "dissertation" @default.
- W143802761 hasAuthorship W143802761A5001814261 @default.
- W143802761 hasConcept C115537861 @default.
- W143802761 hasConcept C147789679 @default.
- W143802761 hasConcept C171250308 @default.
- W143802761 hasConcept C178790620 @default.
- W143802761 hasConcept C179104552 @default.
- W143802761 hasConcept C185592680 @default.
- W143802761 hasConcept C188027245 @default.
- W143802761 hasConcept C191897082 @default.
- W143802761 hasConcept C192562407 @default.
- W143802761 hasConcept C2779227376 @default.
- W143802761 hasConcept C2781324293 @default.
- W143802761 hasConcept C33574316 @default.
- W143802761 hasConcept C544956773 @default.
- W143802761 hasConcept C550623735 @default.
- W143802761 hasConceptScore W143802761C115537861 @default.
- W143802761 hasConceptScore W143802761C147789679 @default.
- W143802761 hasConceptScore W143802761C171250308 @default.
- W143802761 hasConceptScore W143802761C178790620 @default.
- W143802761 hasConceptScore W143802761C179104552 @default.
- W143802761 hasConceptScore W143802761C185592680 @default.
- W143802761 hasConceptScore W143802761C188027245 @default.
- W143802761 hasConceptScore W143802761C191897082 @default.
- W143802761 hasConceptScore W143802761C192562407 @default.
- W143802761 hasConceptScore W143802761C2779227376 @default.
- W143802761 hasConceptScore W143802761C2781324293 @default.
- W143802761 hasConceptScore W143802761C33574316 @default.
- W143802761 hasConceptScore W143802761C544956773 @default.
- W143802761 hasConceptScore W143802761C550623735 @default.
- W143802761 hasOpenAccess W143802761 @default.
- W143802761 hasRelatedWork W1982866975 @default.
- W143802761 hasRelatedWork W1993054504 @default.
- W143802761 hasRelatedWork W2001491642 @default.
- W143802761 hasRelatedWork W2024435111 @default.
- W143802761 hasRelatedWork W2026372047 @default.
- W143802761 hasRelatedWork W2026625505 @default.
- W143802761 hasRelatedWork W2028549637 @default.
- W143802761 hasRelatedWork W2043434684 @default.
- W143802761 hasRelatedWork W2044091431 @default.
- W143802761 hasRelatedWork W2056221676 @default.
- W143802761 hasRelatedWork W2058570357 @default.
- W143802761 hasRelatedWork W2064537000 @default.
- W143802761 hasRelatedWork W2064868642 @default.
- W143802761 hasRelatedWork W2073981594 @default.
- W143802761 hasRelatedWork W2086420935 @default.
- W143802761 hasRelatedWork W2094413953 @default.
- W143802761 hasRelatedWork W2144350939 @default.
- W143802761 hasRelatedWork W2312578456 @default.
- W143802761 hasRelatedWork W2901867798 @default.
- W143802761 hasRelatedWork W657259327 @default.
- W143802761 isParatext "false" @default.
- W143802761 isRetracted "false" @default.
- W143802761 magId "143802761" @default.
- W143802761 workType "dissertation" @default.