Cargando…
Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq(3) Microwires
We report the growth and nanoscale luminescence characteristics of 8-hydroxyquinolinato aluminum (Alq(3)) with a crystalline hexagonal column morphology. Pristine Alq(3) nanoparticles (NPs) were prepared using a conventional reprecipitation method. Crystal hexagonal columns of Alq(3) were grown by u...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951318/ https://www.ncbi.nlm.nih.gov/pubmed/29565306 http://dx.doi.org/10.3390/ma11040472 |
_version_ | 1783323001515671552 |
---|---|
author | Kim, Seokho Kim, Do Hyoung Choi, Jinho Lee, Hojin Kim, Sun-Young Park, Jung Woon Park, Dong Hyuk |
author_facet | Kim, Seokho Kim, Do Hyoung Choi, Jinho Lee, Hojin Kim, Sun-Young Park, Jung Woon Park, Dong Hyuk |
author_sort | Kim, Seokho |
collection | PubMed |
description | We report the growth and nanoscale luminescence characteristics of 8-hydroxyquinolinato aluminum (Alq(3)) with a crystalline hexagonal column morphology. Pristine Alq(3) nanoparticles (NPs) were prepared using a conventional reprecipitation method. Crystal hexagonal columns of Alq(3) were grown by using a surfactant-assisted self-assembly technique as an adjunct to the aforementioned reprecipitation method. The formation and structural properties of the crystalline and non-crystalline Alq(3) NPs were analyzed with scanning electron microscopy and X-ray diffraction. The nanoscale photoluminescence (PL) characteristics and the luminescence color of the Alq(3) single NPs and their crystal microwires (MWs) were evaluated from color charge-coupled device images acquired using a high-resolution laser confocal microscope. In comparison with the Alq(3) NPs, the crystalline MWs exhibited a very bright and sharp emission. This enhanced and sharp emission from the crystalline Alq(3) single MWs originated from effective π-π stacking of the Alq(3) molecules due to strong interactions in the crystalline structure. |
format | Online Article Text |
id | pubmed-5951318 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-59513182018-05-15 Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq(3) Microwires Kim, Seokho Kim, Do Hyoung Choi, Jinho Lee, Hojin Kim, Sun-Young Park, Jung Woon Park, Dong Hyuk Materials (Basel) Article We report the growth and nanoscale luminescence characteristics of 8-hydroxyquinolinato aluminum (Alq(3)) with a crystalline hexagonal column morphology. Pristine Alq(3) nanoparticles (NPs) were prepared using a conventional reprecipitation method. Crystal hexagonal columns of Alq(3) were grown by using a surfactant-assisted self-assembly technique as an adjunct to the aforementioned reprecipitation method. The formation and structural properties of the crystalline and non-crystalline Alq(3) NPs were analyzed with scanning electron microscopy and X-ray diffraction. The nanoscale photoluminescence (PL) characteristics and the luminescence color of the Alq(3) single NPs and their crystal microwires (MWs) were evaluated from color charge-coupled device images acquired using a high-resolution laser confocal microscope. In comparison with the Alq(3) NPs, the crystalline MWs exhibited a very bright and sharp emission. This enhanced and sharp emission from the crystalline Alq(3) single MWs originated from effective π-π stacking of the Alq(3) molecules due to strong interactions in the crystalline structure. MDPI 2018-03-22 /pmc/articles/PMC5951318/ /pubmed/29565306 http://dx.doi.org/10.3390/ma11040472 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kim, Seokho Kim, Do Hyoung Choi, Jinho Lee, Hojin Kim, Sun-Young Park, Jung Woon Park, Dong Hyuk Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq(3) Microwires |
title | Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq(3) Microwires |
title_full | Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq(3) Microwires |
title_fullStr | Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq(3) Microwires |
title_full_unstemmed | Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq(3) Microwires |
title_short | Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq(3) Microwires |
title_sort | growth and brilliant photo-emission of crystalline hexagonal column of alq(3) microwires |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951318/ https://www.ncbi.nlm.nih.gov/pubmed/29565306 http://dx.doi.org/10.3390/ma11040472 |
work_keys_str_mv | AT kimseokho growthandbrilliantphotoemissionofcrystallinehexagonalcolumnofalq3microwires AT kimdohyoung growthandbrilliantphotoemissionofcrystallinehexagonalcolumnofalq3microwires AT choijinho growthandbrilliantphotoemissionofcrystallinehexagonalcolumnofalq3microwires AT leehojin growthandbrilliantphotoemissionofcrystallinehexagonalcolumnofalq3microwires AT kimsunyoung growthandbrilliantphotoemissionofcrystallinehexagonalcolumnofalq3microwires AT parkjungwoon growthandbrilliantphotoemissionofcrystallinehexagonalcolumnofalq3microwires AT parkdonghyuk growthandbrilliantphotoemissionofcrystallinehexagonalcolumnofalq3microwires |