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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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2017
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| Online Access: | http://hdl.handle.net/10356/69942 |
| _version_ | 1811677474754396160 |
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| author | Zhou, Chengzhi |
| author2 | Zhang Hua |
| author_facet | Zhang Hua Zhou, Chengzhi |
| author_sort | Zhou, Chengzhi |
| collection | NTU |
| 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. |
| first_indexed | 2024-10-01T02:37:57Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/69942 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:37:57Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-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 |
| spellingShingle | DRNTU::Engineering::Materials Zhou, Chengzhi Fabrication of transparent quantum dot fluorescence film |
| title | 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_short | Fabrication of transparent quantum dot fluorescence film |
| title_sort | fabrication of transparent quantum dot fluorescence film |
| topic | DRNTU::Engineering::Materials |
| url | http://hdl.handle.net/10356/69942 |
| work_keys_str_mv | AT zhouchengzhi fabricationoftransparentquantumdotfluorescencefilm |