λ-Ti3O5 Film Substrate Without Seed Layer Diffusion
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Solution Overview
Problem
Existing methods for producing λ-Ti3O5 films face challenges in stabilizing the λ-phase due to diffusion of seed layer components, which impedes phase transition and β-phase, and thus a phase transition from λ-Ti3O5 to another phase, and a method for producing the λ-phase, the λ-phase, the λ-phase, the λ-phase, and a method for producing the λ-Ti3O5 film forming substrate.
Innovation Solution
A λ-Ti3O5 film forming substrate is created directly on a support substrate, with controlled temperature conditions between 1000°C and 1200°C by a physical vapor deposition method, utilizing a pulsed laser deposition method, which includes a pulsed laser deposition method, which includes a pulsed laser deposition device, and a method for producing the λ-Ti3O5 film forming substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a seed layer is used to form λ-Ti3O5 film, then the film formation is facilitated, but the seed layer component diffuses into the λ-Ti3O5 film and stabilizes the λ-phase, preventing phase transition
Solution Approach 1:
The invention removes the seed layer from the film structure, extracting the problematic element that causes diffusion and phase stabilization. By forming λ-Ti3O5 film directly on the substrate without a seed layer, the diffusion issue is eliminated while maintaining film formation capability through direct deposition methods
Solution Approach 2:
The invention segments the film formation process into direct deposition on substrate, separating the film formation step from any seed layer preparation. This segmentation eliminates the interface between seed layer and λ-Ti3O5 film that would otherwise enable diffusion and phase stabilization
2Stability of the object's composition
If λ-Ti3O5 film is formed directly on substrate, then phase transition capability is maintained, but manufacturing complexity increases
Solution Approach 1:
The invention changes the substrate temperature parameter to a specific range (1000-1200°C) during film formation, enabling direct λ-Ti3O5 film deposition on the substrate without seed layer. This parameter optimization facilitates direct film formation while maintaining phase transition capability
Solution Approach 2:
The invention uses a composite substrate structure combining LaAlO3 and SrTiO3 layers, where the specific material composition enables direct λ-Ti3O5 film formation with appropriate crystal orientation and phase stability, eliminating the need for separate seed layer preparation
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 allows for stable phase transitions of the λ-Ti3O5 film without the need for a seed layer, ensuring minimal diffusion of substrate components into the film and maintaining the λ-phase stability.
Implementation Method 1
λ-type Ti3O5 (hereinafter, may be referred to as λ-Ti3O5) consisting of the λ-phase undergoes a phase transition into the α-phase or the β-phase by heat, light, or pressure
Implementation Method 2
the λ-Ti3O5 undergoes a reversible transition between the λ-phase and the β-phase by a nanosecond pulsed laser
Implementation Method 3
exhibits a photo-induced phase transition under visible light
Implementation Method 4
forming a λ-Ti3O5 film on a support substrate heated to a temperature region higher than 1000° C. and lower than 1200° C. by a physical vapor deposition method
Data Source
AI summary
A λ-Ti3O5 film forming substrate includes a support substrate and a λ-Ti3O5 film formed directly on the support substrate.