Integration of photosynthetic protein molecular complexes in solid-state electronic devices

Rupa Das, Patrick J. Kiley, Michael Segal, Julie Norville, A. Amy Yu, Leyu Wang, Scott A. Trammell, L. Evan Reddick, Rajay Kumar, Francesco Stellacci, Nikolai Lebedev, Joel Schnur, Barry D. Bruce, Shuguang Zhang, Marc Baldo

Research output: Contribution to journalArticlepeer-review


Plants and photosynthetic bacteria contain protein-molecular complexes that harvest photons with nearly optimum quantum yield and an expected power conversion efficiency exceeding 20%. In this work, we demonstrate the integration of electrically active photosynthetic protein-molecular complexes in solid-state devices, realizing photodetectors and photovoltaic cells with internal quantum efficiencies of approximately 12%. Electronic integration of devices is achieved by self-assembling an oriented monolayer of photosynthetic complexes, stabilizing them with surfactant peptides, and then coating them with a protective organic semiconductor.

Original languageEnglish
Pages (from-to)1079-1083
Number of pages5
JournalNano Letters
Issue number6
Publication statusPublished - Jun 2004

ASJC Scopus subject areas

  • Materials Science(all)

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