Dark states enhance the photocell power via phononic dissipation. Issue 46 (14th November 2016)

• Record Type: Journal Article
• Authors: Zhang, Yiteng; Wirthwein, Aaron; Alharbi, Fahhad H.; Engel, Gregory S.; Kais, Sabre
• Is Part Of: Physical chemistry chemical physics. Volume 18:Issue 46(2016)
• Page Start: 31845
• Page End: 31849
• Publication Date: 2016-11-14
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c6cp06098f
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The high efficiency of the photon-to-charge conversion process found in photosynthetic complexes has inspired researchers to explore a new route in designing artificial photovoltaic materials. Abstract : 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.