Artificial photosynthetic reaction center

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


The objective of this chapter is to describe the recent development of model systems of the photosynthetic reaction center, which is composed of light harvesting and charge-separation units. High quantum yields and long-lived charge separation, which mimic the multi-step electron transfer processes in the photosynthetic reaction center, have been achieved by electron donor-acceptor ensembles linked by covalent bonding. During the multi-step electron transfer processes, however, a significant amount of energy is lost to attain the final long-lived charge-separated state. Simple electron donor-acceptor dyads linked by covalent or non-covalent bonding have been developed to attain a long-lived and highenergy charge-separated state without significant loss of excitation energy. More sophisticated supramolecular complexes composed of light harvesting and chargeseparation units have been readily constructed by using non-covalent bonding such as Π- Π interaction, coordination bonds, and hydrogen bonds to attain long-lived charge-separated states with a high light harvesting efficiency. Single crystal of a supramolecular complex formed between a diprotonated porphyrin and an electron donor exhibit direction-dependent photocurrent generation toward the crystallographic axis along which the intermolecular Π- Π interaction between diprotonated porphyrins is the main conduction pathway. Such single crystals of supramolecular electron donor-acceptor ensembles will pave a way to the development of molecular scale photovoltaics.

Original languageEnglish
Title of host publicationStructure and Function
PublisherSpringer Verlag
Number of pages22
ISBN (Print)9789048128877
StatePublished - 2010
Event2009 6th Indaba Meeting on Structure and Function - Berg-en-Dal, South Africa
Duration: 30 Aug 20094 Sep 2009

Publication series

NameStructure and Function


Conference2009 6th Indaba Meeting on Structure and Function
Country/TerritorySouth Africa


Dive into the research topics of 'Artificial photosynthetic reaction center'. Together they form a unique fingerprint.

Cite this