Organic Semiconducting Compound for Infrared Detection
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Solution Overview
Problem
Current organic semiconducting compounds face limitations in photo-response beyond 1,000 nm and require halogen-containing solvents, which are environmentally harmful, hindering the development of efficient and sustainable organic photodetectors for applications like intelligent driving and unmanned aerial vehicles.
Innovation Solution
A new n-type organic semiconducting compound with a specific molecular structure, allowing for enhanced photo-response beyond 1,000 nm and improved solubility in halogen-free solvents, facilitating the production of organic photoelectronic components with reduced leakage current and increased detectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional organic semiconducting compounds are used, then good solubility and processability are achieved, but photo-response beyond 1,000 nm is limited and halogen-containing solvents are required
Solution Approach 1:
The patent modifies the molecular structure parameters of the organic semiconducting compound by introducing specific substituents (such as fluorine atoms, alkyl chains, and aromatic groups) to achieve both extended photo-response beyond 1,000 nm and compatibility with halogen-free solvents. This parameter optimization allows the compound to maintain good solubility and processability while eliminating the need for environmentally harmful halogen-containing solvents.
Solution Approach 2:
The patent employs a composite molecular structure combining electron-donating and electron-withdrawing groups to create a donor-acceptor type conjugate system. This composite structure enables simultaneous achievement of extended light absorption range, improved solubility in green solvents, and maintained charge transport properties, thereby resolving the contradiction between environmental friendliness and functional performance.
2Adaptability or versatility
If the light absorption range is extended to beyond 1,000 nm, then infrared detection capability is improved, but material structure complexity increases
Solution Approach 1:
The patent divides the molecular structure into distinct functional segments: a core conjugated backbone for light absorption, and peripheral substituents (such as fluorine atoms and alkyl chains) for solubility and stability. This segmentation allows independent optimization of each segment to achieve extended infrared detection capability while maintaining manageable structural complexity and facilitating synthesis.
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 new compound achieves superior photo-response and electrical performance in the infrared range, enabling the development of high-detectivity organic photodetectors with reduced environmental impact through the use of environmentally friendly solvents.
Implementation Method 1
the new compound achieves superior photo-response and electrical performance in the infrared range
Implementation Method 2
organic photodetectors with excellent response values in the infrared range
Data Source
AI summary
The invention relates to organic semiconducting compound and organic photoelectric components containing the organic semiconducting compound. The organic semiconducting compound is designed with a novel chemical structure, so that the compound demonstrates a good response value in the infrared light range, which is suitable for organic photoelectronic components, such as organic photodetector (OPD) or organic field-effect transistor (OFET), which come with a wavelength range of better absorbance and lower interference rate when in use.