Highly Stable Perovskite Supercrystals via Oil-in-Oil Templating
(2020) In Nano Letters 20(8). p.5997-6004- Abstract
Inorganic perovskites display an enticing foreground for their wide range of optoelectronic applications. Recently, supercrystals (SCs) of inorganic perovskite nanocrystals (NCs) have been reported to possess highly ordered structure as well as novel collective optical properties, opening new opportunities for efficient films. Here, we report the large-scale assembly control of spherical, cubic, and hexagonal SCs of inorganic perovskite NCs through templating by oil-in-oil emulsions. We show that an interplay between the roundness of the cubic NCs and the tension of the confining droplet surface sets the superstructure morphology, and we exploit this interplay to design dense hyperlattices of SCs. The SC films show strongly enhanced... (More)
Inorganic perovskites display an enticing foreground for their wide range of optoelectronic applications. Recently, supercrystals (SCs) of inorganic perovskite nanocrystals (NCs) have been reported to possess highly ordered structure as well as novel collective optical properties, opening new opportunities for efficient films. Here, we report the large-scale assembly control of spherical, cubic, and hexagonal SCs of inorganic perovskite NCs through templating by oil-in-oil emulsions. We show that an interplay between the roundness of the cubic NCs and the tension of the confining droplet surface sets the superstructure morphology, and we exploit this interplay to design dense hyperlattices of SCs. The SC films show strongly enhanced stability for at least two months without obvious structural degradation and minor optical changes. Our results on the controlled large-scale assembly of perovskite NC superstructures provide new prospects for the bottom-up production of optoelectronic devices based on the microfluidic production of mesoscopic building blocks.
(Less)
- author
- organization
- publishing date
- 2020
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- assembly, emulsion-droplet templating, perovskite films, stability, supercrystals
- in
- Nano Letters
- volume
- 20
- issue
- 8
- pages
- 8 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:85089613686
- pmid:32701303
- ISSN
- 1530-6992
- DOI
- 10.1021/acs.nanolett.0c02005
- language
- English
- LU publication?
- yes
- id
- 69a0178e-34b9-48ba-b3b8-05741b98d7cd
- date added to LUP
- 2020-08-27 12:48:26
- date last changed
- 2024-08-08 00:42:06
@article{69a0178e-34b9-48ba-b3b8-05741b98d7cd, abstract = {{<p>Inorganic perovskites display an enticing foreground for their wide range of optoelectronic applications. Recently, supercrystals (SCs) of inorganic perovskite nanocrystals (NCs) have been reported to possess highly ordered structure as well as novel collective optical properties, opening new opportunities for efficient films. Here, we report the large-scale assembly control of spherical, cubic, and hexagonal SCs of inorganic perovskite NCs through templating by oil-in-oil emulsions. We show that an interplay between the roundness of the cubic NCs and the tension of the confining droplet surface sets the superstructure morphology, and we exploit this interplay to design dense hyperlattices of SCs. The SC films show strongly enhanced stability for at least two months without obvious structural degradation and minor optical changes. Our results on the controlled large-scale assembly of perovskite NC superstructures provide new prospects for the bottom-up production of optoelectronic devices based on the microfluidic production of mesoscopic building blocks.</p>}}, author = {{Tang, Yingying and Gomez, Leyre and Lesage, Arnon and Marino, Emanuele and Kodger, Thomas E. and Meijer, Janne Mieke and Kolpakov, Paul and Meng, Jie and Zheng, Kaibo and Gregorkiewicz, Tom and Schall, Peter}}, issn = {{1530-6992}}, keywords = {{assembly; emulsion-droplet templating; perovskite films; stability; supercrystals}}, language = {{eng}}, number = {{8}}, pages = {{5997--6004}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Nano Letters}}, title = {{Highly Stable Perovskite Supercrystals via Oil-in-Oil Templating}}, url = {{http://dx.doi.org/10.1021/acs.nanolett.0c02005}}, doi = {{10.1021/acs.nanolett.0c02005}}, volume = {{20}}, year = {{2020}}, }