Fujitsu Corporation

Nara Institute of Science and Technology

Manabu Ohtomo

Hideyuki Jippo

Hiroko Yamada

Hironobu Hayashi

Shintaro Sato

A nanoribbon includes a structure represented by a structural formula (8), where g, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R, R, R, R, R, R, R, and Rare mutually independent and are one of a hydrogen atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or an aryl group.

Compound, nanoribbon, and semiconductor device

A nanoribbon includes a structure represented by a structural formula (8), where g, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R, R, R, R, R, R, R, and Rare mutually independent and are one of a hydrogen atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or as aryl group. 

A graphene nanoribbon precursor having a structural formula represented by a following chemical formula (1), wherein in the following chemical formula (1): n is an integer greater than or equal to 0; X is bromine, iodine or chlorine; and Y is hydrogen or fluorine.

Graphene nanoribbon precursor and method for producing graphene nanoribbon

A graphene nanoribbon has a chiral edge to which a dicarbimide structure is bonded. The dicarbimide structure is an electron-withdrawing group. The width and band gap of the graphene nanoribbon are controlled by a precursor molecule used for a polymerization reaction. Furthermore, n-type operation of the graphene nanoribbon is realized by the dicarbimide structure. In addition, with the graphene nanoribbon, an increase in ribbon length and suppression of a polymerization defect by the stabilization of a reaction intermediate of the precursor molecule, as well as improvement in orientation are realized by the dicarbimide structure.

Graphene nanoribbon, graphene nanoribbon fabrication method, and semiconductor device

A compound represented by the following general formula (1) is used as a precursor of a graphene nanoribbon: where X's are independent of each other and are leaving groups, R's are independent of one another and are hydrogen atoms, fluorine atoms, chlorine atoms, or 1-12C straight-chain, branched-chain, or cyclic alkyl groups, and each of p, q, r, and s is an integer in the range of 0 to 5.

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Kawasaki, Japan

Manabu Ohtomo