Characterization and application of self-assembly porphyrin with four "clips" on gold surface

Jiandong Yang; Minrui Li; Hongxiang Li; Yanlian Yang; Yoshiaki Kashimura; Chen Wang; Keiichi Torimitsu; Xiaoquan Lu; Wenping Hu

doi:10.1021/jp1020643

Characterization and application of self-assembly porphyrin with four "clips" on gold surface

Jiandong Yang, Minrui Li, Hongxiang Li, Yanlian Yang, Yoshiaki Kashimura, Chen Wang, Keiichi Torimitsu, Xiaoquan Lu, Wenping Hu

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Self-assembled monolayers (SAMs) of thiol-derivatized porphyrin molecules on Au substrate have attracted extensive interest for use in sensing, molecular recognition, and molecular electronics. Here, we synthesized tetra[p-(3-mercaptopropyloxy)phenyl]porphyrin (PPS₄) with four "clips" for SAMs. The results demonstrated that PPS₄ could form excellent SAMs on gold surface wherein the molecules oriented on substrates with a tilted angle. Self-assembled nanojunctions of PPS₄ were fabricated by using gold nanogap electrodes (gap width: ca. 100 nm), which exhibited nonlinear current-voltage characteristics, indicating tunneling injection of current from Au electrodes into PPS₄. With the light on/off, the nanojunctions switched between low/high impedance states as nanometer scaled photoswitchers.

Original language	English
Pages (from-to)	12320-12324
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	114
Issue number	28
DOIs	https://doi.org/10.1021/jp1020643
Publication status	Published - 2010 Jul 22
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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Characterization and application of self-assembly porphyrin with four "clips" on gold surface. / Yang, Jiandong; Li, Minrui; Li, Hongxiang; Yang, Yanlian; Kashimura, Yoshiaki; Wang, Chen; Torimitsu, Keiichi; Lu, Xiaoquan; Hu, Wenping.

In: Journal of Physical Chemistry C, Vol. 114, No. 28, 22.07.2010, p. 12320-12324.

Research output: Contribution to journal › Article › peer-review

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abstract = "Self-assembled monolayers (SAMs) of thiol-derivatized porphyrin molecules on Au substrate have attracted extensive interest for use in sensing, molecular recognition, and molecular electronics. Here, we synthesized tetra[p-(3-mercaptopropyloxy)phenyl]porphyrin (PPS4) with four {"}clips{"} for SAMs. The results demonstrated that PPS4 could form excellent SAMs on gold surface wherein the molecules oriented on substrates with a tilted angle. Self-assembled nanojunctions of PPS4 were fabricated by using gold nanogap electrodes (gap width: ca. 100 nm), which exhibited nonlinear current-voltage characteristics, indicating tunneling injection of current from Au electrodes into PPS4. With the light on/off, the nanojunctions switched between low/high impedance states as nanometer scaled photoswitchers.",

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AU - Li, Hongxiang

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AU - Kashimura, Yoshiaki

AU - Wang, Chen

AU - Torimitsu, Keiichi

AU - Lu, Xiaoquan

AU - Hu, Wenping

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Characterization and application of self-assembly porphyrin with four "clips" on gold surface

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