Enhanced photoelectrochemical performance of composite photovoltaic cells of Li+@C60–sulphonated porphyrin supramolecular nanoclusters

Kei Ohkubo,Shunichi Fukuzumi,Hayato Sakai,Taku Hasobe,Yuki Kawashima

doi:10.1039/c3cc41187g

Abstract

Highlights

A photoelectrochemical solar cell composed of supramolecular nanoclusters of lithium encapsulated fullerene and zinc sulphonated meso-tetraphenylporphyrin exhibits significant enhancement in the photoelectrochemical performance as compared with the reference system containing only a single component
We have recently designed and synthesized simple electron donor–acceptor supramolecular complexes composed of lithium ion encapsulated fullerene (Li+@C60) and sulphonated mesotetraphenylporphyrin (MTPPS4À: M = Zn, H2), which have strong
The photoelectrochemical behaviour of the nanostructured SnO2 film of supramolecular nanoclusters between Li+@C60 and MTPPS4À denoted optically transparent electrode (OTE)/SnO2–(MTPPS4À–Li+@C60)n is significantly higher than the single component films of MTPPS4À or Li+@C60 clusters, denoted OTE/SnO2–(MTPPS4À)n or OTE/SnO2–(Li+@C60)n (Scheme 1)

Summary

Introduction

A photoelectrochemical solar cell composed of supramolecular nanoclusters of lithium encapsulated fullerene and zinc sulphonated meso-tetraphenylporphyrin exhibits significant enhancement in the photoelectrochemical performance as compared with the reference system containing only a single component. The photoelectrochemical behaviour of the nanostructured SnO2 film of supramolecular nanoclusters between Li+@C60 and MTPPS4À denoted OTE/SnO2–(MTPPS4À–Li+@C60)n is significantly higher than the single component films of MTPPS4À or Li+@C60 clusters, denoted OTE/SnO2–(MTPPS4À)n or OTE/SnO2–(Li+@C60)n (Scheme 1). E-mail: fukuzumi@chem.eng.osaka-u.ac.jp; Fax: +81-6-6879-7370; Tel: +81-6-6879-7368 b Department of Chemistry, Faculty of Science and Technology, Keio University, Yokohama, 223-8522, Japan.

Results

Conclusion