Photovoltaic properties evaluated by its thermodynamic evolution in a
double quantum dot photocell
- URL: http://arxiv.org/abs/2402.00894v1
- Date: Wed, 31 Jan 2024 12:57:27 GMT
- Title: Photovoltaic properties evaluated by its thermodynamic evolution in a
double quantum dot photocell
- Authors: Sheng-Nan Zhu, Shun-Cai Zhao, Lin-Jie Chen
- Abstract summary: This work attempts to evaluate photocells' performance via evaluating their thermodynamic evolution during the photoelectric conversion process.
Results demonstrate that the thermodynamic-related quantities can reflect the law of photovoltaic dynamics.
- Score: 0.11510009152620665
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Obtaining the physical mechanism of photoelectric transfer in quantum-dot
(QD) photocells may be one strategy to boost the photovoltaic conversion
efficiency. In this work, we attempted to formulate a novel theoretical
approach to evaluate photocells' performance via evaluating their thermodynamic
evolution during the photoelectric conversion process in a double quantum dot
(DQD) photocell model. Results demonstrate that the thermodynamic-related
quantities can reflect the law of photovoltaic dynamics, i.e., the
photoelectric transfer properties can be evaluated by the heat currents
indirectly. The merit of this work not only expands our understanding of the
physical law of heat currents in the photoelectric transport process, but it
may also propose a new method for optimizing photoelectric conversion
efficiency in a DQD photocell.
Related papers
- A quantum picture of light-suppressed photosynthetic charge transfer: Photo-blockade [3.8296992620632757]
We propose a dynamic mechanism for the reversible regulation of photochemistry in plants under varying light environments.
We employ a three-level quantum model to take into account the correlations between charge donors and charge acceptors immediately before photoexcitation.
We show that under steady and coherent driving of light, the efficiency of charge transfer is inversely proportional to the intensity of incident light, which can be suppressed so severely that it becomes a limiting factor on photosynthetic electron transport.
arXiv Detail & Related papers (2024-03-20T15:30:46Z) - Photovoltaic performances in a cavity-coupled double quantum dots
photocell [0.11510009152620665]
The performance of a quantum photovoltaic is evaluated based on the current-voltage and power-voltage characteristics.
Results show that the cavity-DQDs coupling coefficient plays a dissipative role in the photovoltaic performance.
arXiv Detail & Related papers (2024-02-20T13:33:16Z) - Quantum entropy evolution in the photovoltaic process of a quantum dot
photocell [0.0]
We explore the dynamic quantum entropy-related parameters during the photovoltaic output using a double quantum dot (DQD) photocell model.
The findings demonstrate that the dynamic photovoltaic performance is compatible with quantum entropy-related parameters with varying tunneling coupling strengths.
Some thermodynamic criteria may be used to evaluate the photovoltaic process in this proposed photocell model.
arXiv Detail & Related papers (2024-02-08T14:01:40Z) - All-optical modulation with single-photons using electron avalanche [69.65384453064829]
We demonstrate all-optical modulation using a beam with single-photon intensity.
Our approach opens up the possibility of terahertz-speed optical switching at the single-photon level.
arXiv Detail & Related papers (2023-12-18T20:14:15Z) - Phonon-photon conversion as mechanism for cooling and coherence transfer [41.94295877935867]
The energy of a movable wall of a cavity confining a quantum field can be converted into quanta of the field itself.
We employ quantum thermodynamics to show that this phenomenon can be employed as a tool to cool down the wall.
We show how to employ one laser drive to cool the entire system including the case when it is composed of other subsystems.
arXiv Detail & Related papers (2023-12-15T14:42:16Z) - Quantum heat diode versus light emission in circuit quantum
electrodynamical system [0.14502611532302037]
We design a thermal diode in terms of the two-photon Rabi model of the circuit QED system.
We find that the thermal diode can not only be realized in the resonant coupling but also achieve better performance.
arXiv Detail & Related papers (2023-04-04T01:32:44Z) - Amplification of cascaded downconversion by reusing photons with a
switchable cavity [62.997667081978825]
We propose a scheme to amplify triplet production rates by using a fast switch and a delay loop.
Our proof-of-concept device increases the rate of detected photon triplets as predicted.
arXiv Detail & Related papers (2022-09-23T15:53:44Z) - Demonstrating Quantum Microscopic Reversibility Using Coherent States of
Light [58.8645797643406]
We propose and experimentally test a quantum generalization of the microscopic reversibility when a quantum system interacts with a heat bath.
We verify that the quantum modification for the principle of microscopic reversibility is critical in the low-temperature limit.
arXiv Detail & Related papers (2022-05-26T00:25:29Z) - Photovoltaic efficiency at maximum power of a quantum dot molecule [0.0]
It is investigated the behavior of the efficiency at maximum power of a quantum dot molecule, acting as a device for photovoltaic conversion.
The results show the potentiality of increasing the gain in 30% of maximum power delivered per molecule if compared with a single quantum dot.
Also, the system exhibits gain when compared to the Chambadal-Novikov efficiency at maximum power, without exceeding Carnot's efficiency, as expected from the second law of thermodynamics.
arXiv Detail & Related papers (2021-08-27T21:00:47Z) - Directional emission of down-converted photons from a dielectric
nano-resonator [55.41644538483948]
We theoretically describe the generation of photon pairs in the process of spontaneous parametric down-conversion.
We reveal that highly directional photon-pair generation can be observed utilising the nonlinear Kerker-type effect.
arXiv Detail & Related papers (2020-11-16T10:30:04Z) - Photorefractive effect in LiNbO$_3$-based integrated-optical circuits
for continuous variable experiments [45.82374977939355]
Photorefractive effect might compromise success of on-chip quantum photonics experiments.
We focus on photorefractive effect induced by light at 775 nm, in the context of the generation of non-classical light at 1550 nm telecom wavelength.
arXiv Detail & Related papers (2020-07-22T12:37:45Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.