Dark states enhance the photocell power via phononic dissipation

Yiteng Zhang, Aaron Wirthwein, Fahhad Alharbi, Gregory S. Engel, Sabre Kais

Research output: Contribution to journalArticle

6 Citations (Scopus)


The high efficiency of the photon-to-charge conversion process found in photosynthetic complexes has inspired researchers to explore a new route for designing artificial photovoltaic materials. Quantum coherence can provide a mean to surpass the Shockley-Quiesser device concept limit by reducing the radiative recombination. Taking inspiration from these new discoveries, we consider a linearly-aligned system as a light-harvesting antennae composed of two-level optical emitters coupled with each other by dipole-dipole interactions. Our simulations show that the certain dark states can enhance the power with the aid of intra-band phononic dissipation. Due to cooperative effects, the output power will be improved when incorporating more emitters in the linear system.

Original languageEnglish
Pages (from-to)31845-31849
Number of pages5
JournalPhysical Chemistry Chemical Physics
Issue number46
Publication statusPublished - 2016


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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