Self-assembly of functional nanoscale materials
- PDF / 2,985,214 Bytes
- 7 Pages / 585 x 783 pts Page_size
- 27 Downloads / 205 Views
Introduction Self-assembly of molecular and nanoparticle building blocks has been a productive research area over the past 15 years. Much of the effort involves interfacial noncovalent interactions for controlled fabrication of active nanoscale materials during self-assembly. It is specifically emphasized that there are many groups active in this area, and a plethora of impressive results and progress beyond what is presented here.1–3 We are all fascinated with the exquisite design, construction, and function of natural materials such as chlorophyll, a self-assembled photosynthesis center, which efficiently harvests light, as well as sea shells that are simultaneously hard, tough, strong, and lightweight.4,5 From a materials perspective, there are a number of synthetic challenges limiting our ability to impart to engineering materials the functional characteristics of natural systems. One example is how to efficiently
organize molecular and nanoparticle building blocks to arrive at robust devices wherein these building blocks serve as a scaffolding to stabilize, orient, and mediate the performance of final devices. Recently, we devised an interfacial self-assembly strategy to organize molecular precursors and nanoparticle building blocks into a variety of active nanoscale materials with controlled size and dimensionality.6–10 We used surfactant micelles to encapsulate nanoparticles within the hydrophobic micellar interiors to form water-soluble and biocompatible nanoparticle micelles.11–14 Further self-organization of these nanoparticle micelles with inorganic precursors into liquid crystalline mesophases efficiently organizes the nanoparticles and inorganic precursors into highly ordered arrays of nanoparticle nanocomposite forms.14–17 Through control of spatial symmetry, we were able to tune the performance of the thin film of
Feng Bai, Key Laboratory for Special Functional Materials of the Ministry of Education, Henan University, China; [email protected] Kaifu Bian, Sandia National Laboratories, USA; [email protected] Binsong Li, Navitas Systems LLC, USA; [email protected] Casey Karler, The University of New Mexico, and Sandia National Laboratories, USA; [email protected] Ashley Bowman, The University of New Mexico, and Sandia National Laboratories, USA; [email protected] Hongyou Fan, Sandia National Laboratories, and The University of New Mexico, USA; [email protected] doi:10.1557/mrs.2020.21
• VOLUME 45 • FEBRUARY © 2020 Materials Research Society BULLETIN mrs.org/bulletin Downloaded from https://www.cambridge.org/core. The Librarian-Seeley Historical Library, on 11 Feb 2020 at 06:29:11,MRS subject to the Cambridge Core terms of2020 use, •available at https://www.cambridge.org/core/terms. https://doi.org/10.1557/mrs.2020.21
135
Self-assembly of functional nanoscale materials
nanoparticle arrays. We used the surfactant micelles to confine noncovalent interactions of photoactive molecular precursors to form a series of hierarchically structured nanocrystals that mimic chlorophyll to efficiently abs
Data Loading...
