Spectral electrochemical device and method for detecting colloidal semiconductor quantum dots

By combining an electrochemical workstation with multiple spectral detection systems, a spectroelectrochemical device has been developed to address the challenge of real-time monitoring of the electronic structure and spectral changes of colloidal semiconductor quantum dots using traditional electrochemical techniques. This enables in-depth analysis of these quantum dots under electrochemical conditions and supports applications in catalysts, batteries, and sensing.

CN122109247APending Publication Date: 2026-05-29DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES
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Patent Information

Application Number
CN202411721411.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional electrochemical techniques struggle to monitor the changes in electronic structure and surface states of colloidal semiconductor quantum dots during redox processes in real time, and they are unable to capture the nonlinear relationship between spectral response and redox potential, thus limiting a deeper understanding of their electrochemical properties.

Method used

A spectroelectrochemical device combining an electrochemical workstation and multiple spectroscopic detection systems provides high temporal resolution and multidimensional information by real-time monitoring of the spectral characteristics of quantum dots, including absorption, fluorescence, and Raman spectra, enabling analysis of their structure-performance relationships under electrochemical conditions.

Benefits of technology

It enables real-time monitoring of the structural and spectral changes of colloidal semiconductor quantum dots during electrochemical processes, providing rich information on molecular and electronic structures, and supporting application design in the fields of catalysts, batteries, and sensors.

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Abstract

The invention relates to a spectroelectrochemical device and method for detecting colloidal semiconductor quantum dots. The device combines an electrochemical workstation and a spectrum detection system, and is used for monitoring structural changes of molecules and materials in the electrochemical reaction process in real time. The core technology comprises the steps of accurately controlling the oxidation-reduction state of a sample, and obtaining key molecular information through various spectral analysis means (such as ultraviolet-visible absorption spectrum, infrared spectrum, Raman spectrum and the like). The device adopts a modular structure and comprises a reference electrode, a counter electrode and a working electrode, so that the reaction stability and the data reliability are ensured. The method is suitable for the fields of electrocatalyst active site recognition, material electronic structure regulation and control, interface chemical reaction mechanism research and the like.
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