Journal article
Complete Photonic Band Gaps with Nonfrustrated ABC Bottlebrush Block Polymers
ACS macro letters, v 9(7), pp 1074-1080
21 Jul 2020
PMID: 35648618
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Bottlebrush block polymers are a promising platform for self-assembled photonic materials, yet most work has been limited to one-dimensional photonic crystals based on the lamellar phase. Here we demonstrate with simulation that nonfrustrated ABC bottlebrush block polymers can be used to self-assemble three-dimensional photonic crystals with complete photonic band gaps. To show this, we have developed a computational approach that couples self-consistent field theory (SCFT) simulations to Maxwell's equations, thereby permitting a direct link between molecular design, self-assembly, and photonic band structures. Using this approach, we calculate the phase diagram of nonfrustrated ABC bottlebrush block polymers and identify regions where the alternating gyroid and alternating diamond phases are stable. By computing the photonic band structures of these phases, we demonstrate that complete band gaps can be found in regions of thermodynamic stability, thereby suggesting a route to realize these photonic materials experimentally. Furthermore, we demonstrate that gap size depends on volume fraction, segregation strength, and polymer architecture, and we identify a design strategy based on symmetry breaking that can achieve band gaps for lower values of refractive index contrast. Taken together, the approach presented here provides a powerful and flexible tool for predicting both the self-assembly and photonic band structures of polymeric materials.
Metrics
Details
- Title
- Complete Photonic Band Gaps with Nonfrustrated ABC Bottlebrush Block Polymers
- Creators
- Joshua Lequieu - Drexel UniversityTimothy Quah - Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USAKris T. Delaney - Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USAGlenn H. Fredrickson - Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA
- Publication Details
- ACS macro letters, v 9(7), pp 1074-1080
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 7
- Grant note
- DMR-1725414 / DMREF Program of the National Science Foundation; National Science Foundation (NSF); NSF - Directorate for Computer & Information Science & Engineering (CISE) NSF DMR 1720256 / Materials Research Science and Engineering Center (MRSEC) at UC Santa Barbara 1650114 / NSF Graduate Research Fellowship Program; National Science Foundation (NSF) California NanoSystems Institute CNS-1725797 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000555009000024
- Scopus ID
- 2-s2.0-85088860982
- Other Identifier
- 991019168744304721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Polymer Science