Dimeric Perylene Semiconductors for Stable Solution Processing
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Solution Overview
Problem
The development of organic semiconductor materials, particularly n-type semiconductors, is hindered by the lack of suitable formulations with broad viscosity ranges suitable for solution processing techniques, limiting their application in devices such as printable circuits and photovoltaics.
Innovation Solution
The use of dimeric rylene compounds, including dimeric perylene compounds, which exhibit useful electrical properties and solubility in common solvents, enabling their use in various solution-phase processes like spin-coating and printing, and are stable under ambient conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If n-type organic semiconductor materials are used, then device performance can be improved, but their stability under ambient conditions deteriorates
Solution Approach 1:
The patent modifies the chemical structure of rylene compounds by introducing specific substituents and forming dimers, which changes the electronic and physical parameters of the material to achieve both high electron mobility and ambient stability
Solution Approach 2:
The patent creates dimeric rylene compounds that combine multiple functional units into a single molecular structure, achieving synergistic effects that simultaneously provide high electron mobility and environmental stability
2Ease of manufacture
If organic semiconductor materials are formulated for solution processing, then manufacturing cost and ease of fabrication are improved, but the viscosity range suitability deteriorates
Solution Approach 1:
The patent modifies molecular parameters such as solubility and viscosity by introducing specific substituents and molecular architectures, enabling the materials to be processed in solutions with broad viscosity ranges suitable for various printing techniques
3Ease of manufacture
If binders are included in semiconductor formulations, then processability is improved, but carrier mobility deteriorates
Solution Approach 1:
The patent removes the need for binder additives by incorporating processing aids directly into the semiconductor molecule itself, eliminating the harmful effect of binders on carrier mobility while maintaining solution processability
Data Source
AI summary
Disclosed are new semiconductor materials prepared from dimeric perylene compounds. Such compounds can exhibit high n-type carrier mobility and/or good current modulation characteristics. In addition, the compounds of the present teachings can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions.