Electroluminescence spectrum detection method and related equipment of single-molecule optoelectronic devices

By constructing an atomic model and using Dyson equations to solve the problem that the interaction between electrodes and devices cannot be accurately described in the prior art, the effect of accurately describing the coupling effect of photons and devices on the nanoscale is achieved, and a more accurate electroluminescent spectrum is obtained.

CN114462610BActive Publication Date: 2025-03-28SHENZHEN JINGLU COMPUTING SCI APPL RES INST
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Patent Information

Application Number
CN202210153425.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-02-18
Filing Date
2022-02-18
Publication Date
2025-03-28
Estimated Expiration
2042-02-18

AI Technical Summary

Technical Problem

Based on the semi-classical model system in the prior art, it is impossible to accurately describe the interaction between the atomic details between the electrode and the device and the coupling effect between the photon and the device.

Method used

By determining the repeating units of electrodes and single-molecular luminescent units, atomic models are constructed, and electrodynamic analysis is performed to obtain the unequal Green function. The self-consistent solution is used to obtain the unequal Green function of photons and electrons, and the electroluminescent spectrum of the device is obtained.

Benefits of technology

The precise description of the atomic detail interaction between the electrode and the device and the coupling between the photon and the device at the nanoscale is achieved, breaking away from the limitations of the semi-classical model and obtaining a more accurate electroluminescence spectrum.

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Abstract

This invention discloses a method, apparatus, device, and storage medium for electroluminescence spectroscopy detection of single-molecule optoelectronic devices. The method includes: structural modeling of the device with atomic details; electrodynamic analysis of the atomic model to obtain the first non-equilibrium Green's function for photons; applying a bias voltage to the atomic model to obtain the second non-equilibrium Green's function for electrons; introducing photoelectric interaction into the atomic model to determine the third non-equilibrium Green's function for photons and the fourth non-equilibrium Green's function for electrons under photoelectric interaction; and self-consistently solving the Dyson equation to obtain the fifth non-equilibrium Green's function for photons and the sixth non-equilibrium Green's function for electrons, thereby obtaining the electroluminescence spectrum of the device. This invention relates to the field of nanophotonics, capable of describing device structures with atomic-level precision, and considering the optical properties of the single-molecule device itself, can obtain accurate emission spectra of single-molecule devices.
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