Data Mining for Parameters Affecting Polymorph Selection in Contorted Hexabenzocoronene Derivatives
Journal Article
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· Chemistry of Materials
- Princeton Univ., NJ (United States). Dept. of Chemical and Biological Engineering; Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Materials Science Division
- Princeton Univ., NJ (United States). Dept. of Chemical and Biological Engineering
- Princeton Univ., NJ (United States). Dept. of Chemical and Biological Engineering; John Hopkins Univ., Baltimore, MD (United States). Dept. of Applied Mathematics and Statistics
- Princeton Univ., NJ (United States). Dept. of Chemical and Biological Engineering; Princeton Univ., NJ (United States). Andlinger Center for Energy and the Environment
The macroscopic properties of molecular materials can be drastically influenced by their solid-state packing arrangements, of which there can be many (e.g., polymorphism). Strategies to controllably and predictively access select polymorphs are thus highly desired, but computationally predicting the conditions necessary to access a given polymorph is challenging with the current state of the art. Using derivatives of contorted hexabenzocoronene, cHBC, we employed data mining, rather than first-principles approaches, to find relationships between the crystallizing molecule, postdeposition solvent-vapor annealing conditions that induce polymorphic transformation, and the resulting polymorphs. This analysis yields a correlative function that can be used to successfully predict the appearance of either one of two polymorphs in thin films of cHBC derivatives. Within the postdeposition processing phase space of cHBC derivatives, we have demonstrated an approach to generate guidelines to select crystallization conditions to bias polymorph access. Finally, we believe this approach can be applied more broadly to accelerate the predictions of processing conditions to access desired molecular polymorphs, making progress toward one of the grand challenges identified by the Materials Genome Initiative.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1491630
- Report Number(s):
- LLNL-JRNL--739547; 892935
- Journal Information:
- Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 10 Vol. 30; ISSN 0897-4756
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Computationally aided design of a high-performance organic semiconductor: the development of a universal crystal engineering core
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journal | January 2019 |
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