Highly Ordered Inverse Opal Structures Synthesized from Shape-Controlled Nanocrystal Building Blocks

Jae Hyo Han; Anna V. Shneidman; Do Yoon Kim; Natalie J. Nicolas; Jessi E.S. van der Hoeven; Michael Aizenberg; Joanna Aizenberg

doi:10.1002/anie.202111048

Highly Ordered Inverse Opal Structures Synthesized from Shape-Controlled Nanocrystal Building Blocks

Jae Hyo Han^*, Anna V. Shneidman, Do Yoon Kim, Natalie J. Nicolas, Jessi E.S. van der Hoeven, Michael Aizenberg, Joanna Aizenberg

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Three-dimensional ordered porous materials known as inverse opal films (IOFs) were synthesized using nanocrystals with precisely defined morphologies. Comprehensive theoretical and experimental studies of the volume fraction ratio and electrostatic interactions between nanocrystals and polystyrene templating particles enabled the formation of highly ordered crack-free photonic structures. The synthetic strategy was first demonstrated using titanium dioxide (TiO₂) nanocrystals of different shapes and then generalized to assemble nanocrystals of other functional materials, such as indium tin oxide and zinc-doped ferrite. Tunable photocatalytic activity of the TiO₂ IOFs, modulated through the choice of the shape of TiO₂ nanocrystals in conjunction with selecting desired macroscopic features of the IOF, was further explored. In particular, enhanced activity is observed for crack-free, highly ordered IOFs whose photonic properties can improve light absorption via the slow light effect. This study opens new opportunities in designing multi-length-scale porous nanoarchitectures having enhanced performance in a variety of applications.

Original language	English
Article number	e202111048
Pages (from-to)	1-9
Journal	Angewandte Chemie - International Edition
Volume	61
Issue number	3
DOIs	https://doi.org/10.1002/anie.202111048
Publication status	Published - 17 Jan 2022
Externally published	Yes

Keywords

nanocrystals
photocatalysis
self-assembly
shape-effects
slow light effect

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title = "Highly Ordered Inverse Opal Structures Synthesized from Shape-Controlled Nanocrystal Building Blocks",

abstract = "Three-dimensional ordered porous materials known as inverse opal films (IOFs) were synthesized using nanocrystals with precisely defined morphologies. Comprehensive theoretical and experimental studies of the volume fraction ratio and electrostatic interactions between nanocrystals and polystyrene templating particles enabled the formation of highly ordered crack-free photonic structures. The synthetic strategy was first demonstrated using titanium dioxide (TiO2) nanocrystals of different shapes and then generalized to assemble nanocrystals of other functional materials, such as indium tin oxide and zinc-doped ferrite. Tunable photocatalytic activity of the TiO2 IOFs, modulated through the choice of the shape of TiO2 nanocrystals in conjunction with selecting desired macroscopic features of the IOF, was further explored. In particular, enhanced activity is observed for crack-free, highly ordered IOFs whose photonic properties can improve light absorption via the slow light effect. This study opens new opportunities in designing multi-length-scale porous nanoarchitectures having enhanced performance in a variety of applications.",

keywords = "nanocrystals, photocatalysis, self-assembly, shape-effects, slow light effect",

author = "Han, {Jae Hyo} and Shneidman, {Anna V.} and Kim, {Do Yoon} and Nicolas, {Natalie J.} and {van der Hoeven}, {Jessi E.S.} and Michael Aizenberg and Joanna Aizenberg",

note = "Funding Information: This work was supported by the U.S. Defense Threat Reduction Agency (DTRA) under Award Number HDTR1211001612. J.H.H. was partially supported by the Institute for Basic Science (IBS‐R026‐D1). N.J.N. was supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE1745303. Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",

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doi = "10.1002/anie.202111048",

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AU - Han, Jae Hyo

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AU - Nicolas, Natalie J.

AU - van der Hoeven, Jessi E.S.

AU - Aizenberg, Michael

AU - Aizenberg, Joanna

N1 - Funding Information: This work was supported by the U.S. Defense Threat Reduction Agency (DTRA) under Award Number HDTR1211001612. J.H.H. was partially supported by the Institute for Basic Science (IBS‐R026‐D1). N.J.N. was supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE1745303. Publisher Copyright: © 2021 Wiley-VCH GmbH

PY - 2022/1/17

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N2 - Three-dimensional ordered porous materials known as inverse opal films (IOFs) were synthesized using nanocrystals with precisely defined morphologies. Comprehensive theoretical and experimental studies of the volume fraction ratio and electrostatic interactions between nanocrystals and polystyrene templating particles enabled the formation of highly ordered crack-free photonic structures. The synthetic strategy was first demonstrated using titanium dioxide (TiO2) nanocrystals of different shapes and then generalized to assemble nanocrystals of other functional materials, such as indium tin oxide and zinc-doped ferrite. Tunable photocatalytic activity of the TiO2 IOFs, modulated through the choice of the shape of TiO2 nanocrystals in conjunction with selecting desired macroscopic features of the IOF, was further explored. In particular, enhanced activity is observed for crack-free, highly ordered IOFs whose photonic properties can improve light absorption via the slow light effect. This study opens new opportunities in designing multi-length-scale porous nanoarchitectures having enhanced performance in a variety of applications.

AB - Three-dimensional ordered porous materials known as inverse opal films (IOFs) were synthesized using nanocrystals with precisely defined morphologies. Comprehensive theoretical and experimental studies of the volume fraction ratio and electrostatic interactions between nanocrystals and polystyrene templating particles enabled the formation of highly ordered crack-free photonic structures. The synthetic strategy was first demonstrated using titanium dioxide (TiO2) nanocrystals of different shapes and then generalized to assemble nanocrystals of other functional materials, such as indium tin oxide and zinc-doped ferrite. Tunable photocatalytic activity of the TiO2 IOFs, modulated through the choice of the shape of TiO2 nanocrystals in conjunction with selecting desired macroscopic features of the IOF, was further explored. In particular, enhanced activity is observed for crack-free, highly ordered IOFs whose photonic properties can improve light absorption via the slow light effect. This study opens new opportunities in designing multi-length-scale porous nanoarchitectures having enhanced performance in a variety of applications.

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Highly Ordered Inverse Opal Structures Synthesized from Shape-Controlled Nanocrystal Building Blocks

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Keywords

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