Organic Semiconductor Layer Fused Polycyclic Structures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Organic semiconductor elements face challenges in maintaining desired semiconductor characteristics, such as carrier mobility, when exposed to high temperature environments, leading to deterioration of performance.
Innovation Solution
The use of specific organic semiconductor layers composed of compounds and polymers with fused polycyclic structures, represented by certain formulas, which enhance heat resistance and carrier mobility by increasing intermolecular interaction and crystal stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional organic semiconductor materials are used, then device flexibility and cost are improved, but heat resistance and carrier mobility deteriorate at high temperatures
Solution Approach 1:
The patent changes the molecular structure parameters of the organic semiconductor by introducing specific fused polycyclic aromatic hydrocarbon structures with defined ring configurations and substituent groups. This structural parameter modification enhances both the thermal stability and charge transport properties, allowing the material to maintain high carrier mobility even at elevated temperatures up to 80°C.
Solution Approach 2:
The invention creates a composite semiconductor material system by combining specific organic compounds with complementary molecular structures. The composite approach integrates materials with different functional characteristics - some providing thermal stability through rigid fused ring structures, while others contribute to charge transport through appropriate HOMO/LUMO level alignments and molecular packing arrangements.
2Weight of moving object
If organic semiconductor films are used to reduce weight and cost, then device portability is improved, but performance stability under high temperature conditions deteriorates
Solution Approach 1:
The patent modifies the chemical composition parameters of the organic semiconductor by selecting compounds with specific molecular weights, ring structures, and substituent patterns. These parameter changes enable the material to achieve both low density (for weight reduction) and high thermal stability (for performance stability), with the fused polycyclic structure providing rigidity that prevents degradation at elevated temperatures.
Solution Approach 2:
The invention employs organic semiconductor materials that can be processed from solution at low costs compared to inorganic alternatives, enabling economical device fabrication. The specific molecular structures designed in the patent ensure that despite the organic nature of the materials, the devices achieve sufficient operational lifetime and stability for practical applications.
Data Source
AI summary
An organic semiconductor element in which an organic semiconductor layer contains a compound of Formula (1), a compound of Formula (2), and/or a compound of Formula (3) or contains a polymer having a structure of any one of formed by Formulae (8) to (10):in which X1 represents a nitrogen atom or CRa, and rings A to B each represent a specific nitrogen-containing ring; Y1 represents an oxygen atom, a sulfur atom, CRb2, or NRc; V1 represents NRd, an oxygen atom, a sulfur atom, or a selenium atom; Ra to Rd each represent a hydrogen atom or a substituent; R1 represents a specific substituent, and p is an integer of 0 to 2; n represents 1 or 2; and * represents a bonding site.