Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 5, Pages 2524-2527Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja211334k
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [23750144]
- Kato Science Foundation [H23_2006]
- Grants-in-Aid for Scientific Research [23750144] Funding Source: KAKEN
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Amphiphilic zinc porphyrin (P-zn; electron donor, D)-fullerene (C-60; electron acceptor, A) dyads 2 nand 3, bearing an identical hydrophilic wedge with triethylene glycol chains but different linkers between the P-Zn and C-60 units, self-assemble into nanotubes with essentially different dimensional and geometrical features from one another. The nanotube from dyad 2 with an ester linker consists of a bilayer wall formed with coaxially segregated D and A nanodomains along the tube axis (coaxial D-A heterojunction), thereby displaying explicit photoconductivity with ambipolar carrier transport properties. In contrast, the nanotube from dyad 3 with a rigid arylacetylene linker consists of a monolayer wall with an alternate geometry of D/A stacking, resulting in poor photoconducting outputs. Such a geometrical difference also significantly affects the photovoltaic properties.
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