Photocell Optimisation Using Dark State Protection
arXiv:1511.06302 · doi:10.1103/PhysRevLett.117.203603
Abstract
Conventional photocells suffer a fundamental efficiency threshold imposed by the principle of detailed balance, reflecting the fact that good absorbers must necessarily also be fast emitters. This limitation can be overcome by `parking' the energy of an absorbed photon in a dark state which neither absorbs nor emits light. Here we argue that suitable dark states occur naturally as a consequence of the dipole-dipole interaction between two proximal optical dipoles for a wide range of realistic molecular dimers. We develop an intuitive model of a photocell comprising two light-absorbing molecules coupled to an idealised reaction centre, showing asymmetric dimers are capable of providing a significant enhancement of light-to-current conversion under ambient conditions. We conclude by describing a roadmap for identifying suitable molecular dimers for demonstrating this effect by screening a very large set of possible candidate molecules.
arXiv comment14 pages, 16 figures, comments are very welcome!
References in corpus (17)
- Long-lived quantum coherence in photosynthetic complexes at physiological temperature
- Environment-Assisted Quantum Transport
- Quantum heat engines and refrigerators: Continuous devices
- Quantum Equivalence and Quantum Signatures in Heat Engines
- Role of quantum coherence in chromophoric energy transport
- Efficiency of energy transfer in a light-harvesting system under quantum coherence
- On the Local and Global Approaches to Quantum Transport and Violation of the Second-law of Thermodynamics
- Long-Lived Electronic Coherence in Dissipative Exciton-Dynamics of Light-Harvesting Complexes
- An efficient biologically-inspired photocell enhanced by quantum coherence
- Thermodynamics of quantum systems under dynamical control
- Dynamics and thermodynamics of linear quantum open systems
- Delocalized Quantum States Enhance Photocell Efficiency
- Efficient estimation of energy transfer efficiency in light-harvesting complexes
- Performance limits of multilevel and multipartite quantum heat machines
- Quantum-enhanced capture of photons using optical ratchet states
- Heat pumping with optically driven excitons
- Multiple State Representation Scheme for Organic Bulk Heterojunction Solar Cells: A Novel Analysis Perspective
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- The dark side of energy transport along excitonic wires: On-site energy barriers facilitate efficient, vibrationally-mediated transport through optically dark subspaces
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