title: Fluorination of metal phthalocyanines: single-crystal growth, efficient N-channel organic field-effect transistors, and structure-property relationships.
abstract: The fluorination of p-type metal phthalocyanines produces n-type semiconductors, allowing the design of organic electronic circuits that contain inexpensive heterojunctions made from chemically and thermally stable p- and n-type organic semiconductors. For the evaluation of close to intrinsic transport properties, high-quality centimeter-sized single crystals of F16CuPc, F16CoPc and F16ZnPc have been grown. New crystal structures of F16CuPc, F16CoPc and F16ZnPc have been determined. Organic single-crystal field-effect transistors have been fabricated to study the effects of the central metal atom on their charge transport properties. The F16ZnPc has the highest electron mobility (~1.1 cm(2) V(-1) s(-1)). Theoretical calculations indicate that the crystal structure and electronic structure of the central metal atom determine the transport properties of fluorinated metal phthalocyanines.
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore.
authors.forename: Hui
authors.initials: H
authors.lastname: Jiang
authors.affiliation: Institute of High Performance Computing, Agency for Science, Technology and Research, 138632 Singapore.
authors.forename: Jun
authors.initials: J
authors.lastname: Ye
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore.
authors.forename: Peng
authors.initials: P
authors.lastname: Hu
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore.
authors.forename: Fengxia
authors.initials: F
authors.lastname: Wei
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore.
authors.forename: Kezhao
authors.initials: K
authors.lastname: Du
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore.
authors.forename: Ning
authors.initials: N
authors.lastname: Wang
authors.affiliation: Institute of High Performance Computing, Agency for Science, Technology and Research, 138632 Singapore.
authors.forename: Te
authors.initials: T
authors.lastname: Ba
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore.
authors.forename: Shuanglong
authors.initials: S
authors.lastname: Feng
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore.
authors.forename: Christian
authors.initials: C
authors.lastname: Kloc