Fabrication of transparent quantum dot fluorescence film

A simple method of fabricating fluorescence quantum-dot-polypropylene (QD-PP) composite was demonstrated. The manufacturing process was as easy as direct coating of the porous polypropylene film with concentrated QD solution. The QD-PP films exhibited very bright fluorescence, high stability and fle...

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Main Author: Zhou, Chengzhi
Other Authors: Zhang Hua
Format: Final Year Project
Language:English
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/10356/69942
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-699422023-03-04T15:30:33Z Fabrication of transparent quantum dot fluorescence film Zhou, Chengzhi Zhang Hua School of Materials Science and Engineering A*STAR SIMTech DRNTU::Engineering::Materials A simple method of fabricating fluorescence quantum-dot-polypropylene (QD-PP) composite was demonstrated. The manufacturing process was as easy as direct coating of the porous polypropylene film with concentrated QD solution. The QD-PP films exhibited very bright fluorescence, high stability and flexibility. Annealing of the QD-PP films enabled the encapsulation of the QDs within the polymer structure and obtain highly transparent composite films. The relationship between annealing condition and the performance of the QD-PP film was determined by varying the annealing temperature from 110℃ to 140℃ and the annealing pressure from 0.2 T to 2.0 T. Various properties, including transparency, emission intensity and morphology information of the QD-PP film were characterized and studied. Generally speaking, the QD-PP films showed high transparency at high temperature. Whereas, transparency did not consistently increase with the increase of annealing pressure. While a maximum transparency was achieved, further increase of annealing pressure decreased the transparency. It was mainly due to the change of polymer structure and agglomeration of QDs. For all fabricated QD-PP films, a consistent emission peak was observed around 610 nm using a 450-nm activation light. Bachelor of Engineering (Materials Engineering) 2017-04-05T03:01:36Z 2017-04-05T03:01:36Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/69942 en Nanyang Technological University 44 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Zhou, Chengzhi
Fabrication of transparent quantum dot fluorescence film
description A simple method of fabricating fluorescence quantum-dot-polypropylene (QD-PP) composite was demonstrated. The manufacturing process was as easy as direct coating of the porous polypropylene film with concentrated QD solution. The QD-PP films exhibited very bright fluorescence, high stability and flexibility. Annealing of the QD-PP films enabled the encapsulation of the QDs within the polymer structure and obtain highly transparent composite films. The relationship between annealing condition and the performance of the QD-PP film was determined by varying the annealing temperature from 110℃ to 140℃ and the annealing pressure from 0.2 T to 2.0 T. Various properties, including transparency, emission intensity and morphology information of the QD-PP film were characterized and studied. Generally speaking, the QD-PP films showed high transparency at high temperature. Whereas, transparency did not consistently increase with the increase of annealing pressure. While a maximum transparency was achieved, further increase of annealing pressure decreased the transparency. It was mainly due to the change of polymer structure and agglomeration of QDs. For all fabricated QD-PP films, a consistent emission peak was observed around 610 nm using a 450-nm activation light.
author2 Zhang Hua
author_facet Zhang Hua
Zhou, Chengzhi
format Final Year Project
author Zhou, Chengzhi
author_sort Zhou, Chengzhi
title Fabrication of transparent quantum dot fluorescence film
title_short Fabrication of transparent quantum dot fluorescence film
title_full Fabrication of transparent quantum dot fluorescence film
title_fullStr Fabrication of transparent quantum dot fluorescence film
title_full_unstemmed Fabrication of transparent quantum dot fluorescence film
title_sort fabrication of transparent quantum dot fluorescence film
publishDate 2017
url http://hdl.handle.net/10356/69942
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