Metal Oxide Composite Materials for Adjustable Photoelectric Conductivity
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Solution Overview
Problem
Existing photoelectric devices face challenges in achieving adjustable conductivity of metal oxides to meet the diverse requirements of different application scenarios, leading to inefficiencies and imbalances in electron-hole transport.
Innovation Solution
A composite material comprising a first metal oxide, such as Zn(1-x)MgxO, and a metal halide like MgCl2, is used to regulate conductivity, integrated into functional layers of photoelectric devices, enhancing electron-hole transport balance and device efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conductivity of metal oxide is increased to improve electron transport, then electron transport efficiency is improved, but hole transport becomes imbalanced and device stability deteriorates
Solution Approach 1:
The patent changes the chemical composition parameters of the metal oxide by introducing dopant elements (such as Ga, In, Al) at controlled concentrations (0.01-0.5 atomic ratios). This parameter adjustment modifies the material's electrical properties to achieve balanced electron-hole transport while maintaining device stability, resolving the contradiction between improved electron transport and transport imbalance.
Solution Approach 2:
The patent creates a composite material system by combining metal oxide with specific dopant elements. This composite approach allows simultaneous optimization of multiple properties: the metal oxide provides the base structure for electron transport, while the dopant elements introduce holes and balance charge transport, thereby resolving the transport imbalance issue while maintaining stability.
2Adaptability or versatility
If the conductivity of metal oxide is adjusted to meet diverse application requirements, then adaptability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent achieves conductivity adjustment through systematic parameter changes in the doping process. By varying the dopant type and concentration within defined ranges, different conductivity levels can be obtained for various applications. This standardized parameter adjustment approach maintains manufacturing simplicity while providing versatile conductivity control.
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 composite material improves the efficiency and stability of photoelectric devices by adjusting conductivity, promoting electron-hole transport balance and reducing electron injection levels, thereby enhancing overall device performance.
Implementation Method 1
A composite material comprising a first metal oxide, such as Zn(1-x)MgxO, and a metal halide like MgCl2, is used to regulate conductivity
Data Source
AI summary
Disclosed are a composite material, a film, and a photoelectric device. The composite material includes a first metal oxide and a metal halide. The metal halide includes magnesium element. A conductivity of the first metal oxide is adjustable by adding the metal halide, thereby meeting needs of different application scenarios.