Light-Triggered Cleaning Structure via Metallic Nanoparticle Doping
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Solution Overview
Problem
Conventional sterilizing glass coatings suffer from reduced transmittance, color differences, and a short service life due to wear and light exposure, leading to compromised sterilizing ability and high manufacturing costs.
Innovation Solution
A manufacturing method involving a light-transmitting substrate with a nanoparticle layer of metallic nanoparticles, where the substrate is heated to allow nanoparticles to permeate, forming a doped structure that maintains transparency and enhances sterilizing capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sterilizing material coating is applied on the glass surface, then the sterilizing ability is improved, but the transmittance is reduced and color difference occurs
Solution Approach 1:
The patent changes the physical state of the sterilizing material from a surface coating to a bulk-doped state within the glass matrix. By incorporating metallic nanoparticles into the glass substrate through high-temperature melting and permeation, the material transitions from a surface layer that blocks light to an integrated structure that maintains optical clarity while providing sterilizing functionality throughout the bulk material.
Solution Approach 2:
The patent creates a composite structure by combining metallic nanoparticles with the glass matrix. The metallic nanoparticles provide sterilizing functionality while the glass matrix maintains optical transparency. This composite approach allows the sterilizing material to be distributed throughout the bulk glass rather than forming a surface coating, thereby preserving transmittance.
2Reliability
If a sterilizing material coating is applied on the glass surface, then the sterilizing ability is improved, but the coating suffers from loss, wearing or peeling after long-term usage
Solution Approach 1:
The patent merges the sterilizing material with the glass substrate by incorporating metallic nanoparticles into the glass matrix during the melting process. This integration ensures that the sterilizing material becomes an intrinsic part of the glass structure, eliminating the interface between coating and substrate that causes wear and peeling in conventional surface-coated systems.
Solution Approach 2:
The patent replaces the conventional surface coating approach with a bulk-doped structure where the sterilizing material is permanently embedded in the glass. This eliminates the need for protective coatings or surface layers that would otherwise wear, peel, or degrade over time, thereby extending the service life of the sterilizing functionality.
3Ease of manufacture
If conventional coating methods are used for sterilizing glass, then the manufacturing process is simplified, but high demands for environmental and process cleanliness are required
Solution Approach 1:
The patent changes the manufacturing approach from low-temperature surface coating to high-temperature bulk doping. By incorporating metallic nanoparticles into the glass during the melting process (typically 1000-1500°C), the method eliminates the need for controlled coating environments, reducing sensitivity to environmental cleanliness requirements while maintaining manufacturing feasibility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method results in a transparent, high-transmittance glass with improved sterilizing ability, resistant to wear and light exposure, and lower manufacturing costs.
Implementation Method 1
the light source causes a surface plasmon polariton to be formed on a surface of the metallic nanoparticles of the doped structure
Implementation Method 2
a Tamm plasmon polariton is formed at the grain boundary of the doped structure
Implementation Method 3
the surface plasmon polariton and the Tamm plasmon polariton resonate with each other to form an optical Tamm state
Implementation Method 4
heating the light-transmitting substrate to a softening temperature and keep heating for a heating time allowing the light-transmitting substrate to enter a softened status, so that the metallic nanoparticles permeate the light-transmitting substrate
Data Source
AI summary
The present invention provides a manufacturing method and cleaning method of light-triggered light-transmitting cleaning structure. The manufacturing method includes following steps: step S1, providing a light-transmitting substrate; step S2, forming a nanoparticle layer on the substrate surface; step S3, heating the light-transmitting substrate to a softening temperature and allowing metallic nanoparticles to permeate the light-transmitting substrate; step S4, cooling for the metallic nanoparticles to form a doped structure in the light-transmitting substrate, forming the light-triggered light-transmitting cleaning structure. The cleaning method forms an optical Tamm state by irradiating said structure with a light source to resonate, such that the optical Tamm state interacts with ambient substance to form a cleaning substance for removing pollutants. The present invention achieves the purpose of pollutants cleaning under the conditions of high transparency, high light transmission, and long service life.