Processing of Organic Semiconductors from High Dielectric Media
Abstract
The goal of this study is to be able to fabricate new flexible, light weight and economically viable optoelectronic devices using molecular organic semiconductors and solvents with high dielectric constants. Such a combination of materials and processing conditions would accelerate the mass fabrication of soft matter optoelectronic devices via deposition methods that minimize health hazards and negative impacts on the environment. The scientific challenge is to understand the dynamics and balance of intermolecular and intermolecular forces by which molecules self assemble in solution as the solvent evaporates and the optoelectronic active layer develops. Because of the complexity of the problem, the proposed effort will integrate theory, chemical synthesis, and characterization tools that probe optoelectronic and morphological properties across different temporal and length scales. These studies will rely on a modular family of molecules that allows for systematic dissection of structural components. Relationships between electrical properties and the organization of molecular components within active layer thin films will be obtained by using techniques such as atomic force microscopy, insitu imaging techniques and conductivity measurements, both within diode and transistor configurations. Characterization tools that allow interrogation of film evolution from solution will be used to develop a detailed picture on how self assembly evolves in the continuum from isotropic solvated systems, via incipient film, to the final static organization. Successful completion of the program will promote commercialization of relevant devices, such as light emitting diodes, thin film transistors, photodetectors, and enable integration with conformable organic photodetectors. Beyond these objectives, the resulting scientific knowledge base will provide the basis for understanding and ultimately pred
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 14, 2022
- Source ID
- FA95501910348
Entities
People
- Thuc-Quyen Nguyen
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of California, Santa Barbara