Optical and electrical measurement of energy transfer between nanocrystalline quantum dots and photosystem I

Hyeson Jung, Galina Gulis, Subhadra Gupta, Kevin Edward Redding, David J. Gosztola, Gary P. Wiederrecht, Michael A. Stroscio, Mitra Dutta

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In the natural photosynthesis process, light harvesting complexes (LHCs) absorb light and pass excitation energy to photosystem I (PSI) and photosystem II (PSII). In this study, we have used nanocrystalline quantum dots (NQDs) as an artificial LHC by integrating them with PSI to extend their spectral range. We have performed photoluminescence (PL) and ultrafast time-resolved absorption measurements to investigate this process. Our PL experiments showed that emission from the NQDs is quenched, and the fluorescence from PSI is enhanced. Transient absorption and bleaching results can be explained by fluorescence resonance energy transfer (FRET) from the NQDs to the PSI. This nonradiative energy transfer occurs in ∼6 ps. Current - voltage (I-V) measurements on the composite NQD-PSI samples demonstrate a clear photoresponse.

Original languageEnglish
Pages (from-to)14544-14549
Number of pages6
JournalJournal of Physical Chemistry B
Volume114
Issue number45
DOIs
Publication statusPublished - Dec 8 2010

Fingerprint

Photosystem I Protein Complex
optical measurement
Energy transfer
electrical measurement
Semiconductor quantum dots
energy transfer
quantum dots
Photoluminescence
photoluminescence
photosynthesis
Photosynthesis
Excitation energy
bleaching
resonance fluorescence
Bleaching
Photosystem II Protein Complex
Fluorescence
fluorescence
composite materials
Composite materials

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Surfaces, Coatings and Films

Cite this

Optical and electrical measurement of energy transfer between nanocrystalline quantum dots and photosystem I. / Jung, Hyeson; Gulis, Galina; Gupta, Subhadra; Redding, Kevin Edward; Gosztola, David J.; Wiederrecht, Gary P.; Stroscio, Michael A.; Dutta, Mitra.

In: Journal of Physical Chemistry B, Vol. 114, No. 45, 08.12.2010, p. 14544-14549.

Research output: Contribution to journalArticle

Jung, H, Gulis, G, Gupta, S, Redding, KE, Gosztola, DJ, Wiederrecht, GP, Stroscio, MA & Dutta, M 2010, 'Optical and electrical measurement of energy transfer between nanocrystalline quantum dots and photosystem I', Journal of Physical Chemistry B, vol. 114, no. 45, pp. 14544-14549. https://doi.org/10.1021/jp102291e
Jung, Hyeson ; Gulis, Galina ; Gupta, Subhadra ; Redding, Kevin Edward ; Gosztola, David J. ; Wiederrecht, Gary P. ; Stroscio, Michael A. ; Dutta, Mitra. / Optical and electrical measurement of energy transfer between nanocrystalline quantum dots and photosystem I. In: Journal of Physical Chemistry B. 2010 ; Vol. 114, No. 45. pp. 14544-14549.
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