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STUDY ON THE PUSH COATING FOR A LARGER MODULE OF ACTIVE LAYER FILMS

A solar cell is used to convert solar energy into electricity by the photovoltaic effect. There are multiple different functional layers in a solar cell and the active layer is the core of a solar cell as the photovoltaic effect takes place over there. Spin coating is the conventional method to depo...

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Main Author: NG, JI WEI
Format: Final Year Project Report
Language:English
English
Published: Universiti Malaysia Sarawak, (UNIMAS) 2020
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://ir.unimas.my/id/eprint/36724/1/STUDY%20ON%20THE%20PUSH%20COATING%20FOR%20A%20LARGER%20MODULE%2024pgs.pdf
http://ir.unimas.my/id/eprint/36724/2/STUDY%20ON%20THE%20PUSH%20COATING%20FOR%20A%20LARGER%20MODULE%20ft.pdf
http://ir.unimas.my/id/eprint/36724/
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spelling my.unimas.ir.367242021-11-17T04:31:41Z http://ir.unimas.my/id/eprint/36724/ STUDY ON THE PUSH COATING FOR A LARGER MODULE OF ACTIVE LAYER FILMS NG, JI WEI TJ Mechanical engineering and machinery A solar cell is used to convert solar energy into electricity by the photovoltaic effect. There are multiple different functional layers in a solar cell and the active layer is the core of a solar cell as the photovoltaic effect takes place over there. Spin coating is the conventional method to deposits the thin film of active layer by the centrifugal force, however, spin coating discards a large amount of hazardous solvent wastage during the process, it is highly expensive in terms of materials and it only able to fabricate a small and limited coverage area. Therefore, to resolve these problems, push coating is introduced, another method that deposits the thin film by the capillary force. In this project, both spin and push coating methods are performed to study the film condition produced. Besides, the Polydimethylsiloxane (PDMS) stamp condition throughout the push coating is studied in this project as well. In this project, the spin coating is performed under different condition including the stamping duration and additional weight on the PDMS stamp while the spin coating is performed as a reference of the film condition to compare with push coating. Throughout the push coating, the film condition obtained is different from every trial and the PDMS stamp is swollen after the stamping process. In the push coating, the PDMS stamp’s mass increased due to the solvent retention; the PDMS stamp bent as well due to the solvent sorption and desorption kinetics. The adsorbed solvent in the swollen stamp can be removed by annealing the stamp. The push coating is performed at a larger substrate (5 × 5 cm2), the film condition is improved after applied additional weight on top of the PDMS stamp and by increasing the stamping duration. In the spin coating, the film condition is smoother than all the films produced by the push coating method. In conclusion, in this project, the push coating can perform at a larger substrate (5 × 5 cm2), which is much larger than all the previous research (2.5 × 2.5 cm2). Unfortunately, further investigation is required to obtain the optimum results for the film’s thickness and condition. Universiti Malaysia Sarawak, (UNIMAS) 2020 Final Year Project Report NonPeerReviewed text en http://ir.unimas.my/id/eprint/36724/1/STUDY%20ON%20THE%20PUSH%20COATING%20FOR%20A%20LARGER%20MODULE%2024pgs.pdf text en http://ir.unimas.my/id/eprint/36724/2/STUDY%20ON%20THE%20PUSH%20COATING%20FOR%20A%20LARGER%20MODULE%20ft.pdf NG, JI WEI (2020) STUDY ON THE PUSH COATING FOR A LARGER MODULE OF ACTIVE LAYER FILMS. [Final Year Project Report] (Unpublished)
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
NG, JI WEI
STUDY ON THE PUSH COATING FOR A LARGER MODULE OF ACTIVE LAYER FILMS
description A solar cell is used to convert solar energy into electricity by the photovoltaic effect. There are multiple different functional layers in a solar cell and the active layer is the core of a solar cell as the photovoltaic effect takes place over there. Spin coating is the conventional method to deposits the thin film of active layer by the centrifugal force, however, spin coating discards a large amount of hazardous solvent wastage during the process, it is highly expensive in terms of materials and it only able to fabricate a small and limited coverage area. Therefore, to resolve these problems, push coating is introduced, another method that deposits the thin film by the capillary force. In this project, both spin and push coating methods are performed to study the film condition produced. Besides, the Polydimethylsiloxane (PDMS) stamp condition throughout the push coating is studied in this project as well. In this project, the spin coating is performed under different condition including the stamping duration and additional weight on the PDMS stamp while the spin coating is performed as a reference of the film condition to compare with push coating. Throughout the push coating, the film condition obtained is different from every trial and the PDMS stamp is swollen after the stamping process. In the push coating, the PDMS stamp’s mass increased due to the solvent retention; the PDMS stamp bent as well due to the solvent sorption and desorption kinetics. The adsorbed solvent in the swollen stamp can be removed by annealing the stamp. The push coating is performed at a larger substrate (5 × 5 cm2), the film condition is improved after applied additional weight on top of the PDMS stamp and by increasing the stamping duration. In the spin coating, the film condition is smoother than all the films produced by the push coating method. In conclusion, in this project, the push coating can perform at a larger substrate (5 × 5 cm2), which is much larger than all the previous research (2.5 × 2.5 cm2). Unfortunately, further investigation is required to obtain the optimum results for the film’s thickness and condition.
format Final Year Project Report
author NG, JI WEI
author_facet NG, JI WEI
author_sort NG, JI WEI
title STUDY ON THE PUSH COATING FOR A LARGER MODULE OF ACTIVE LAYER FILMS
title_short STUDY ON THE PUSH COATING FOR A LARGER MODULE OF ACTIVE LAYER FILMS
title_full STUDY ON THE PUSH COATING FOR A LARGER MODULE OF ACTIVE LAYER FILMS
title_fullStr STUDY ON THE PUSH COATING FOR A LARGER MODULE OF ACTIVE LAYER FILMS
title_full_unstemmed STUDY ON THE PUSH COATING FOR A LARGER MODULE OF ACTIVE LAYER FILMS
title_sort study on the push coating for a larger module of active layer films
publisher Universiti Malaysia Sarawak, (UNIMAS)
publishDate 2020
url http://ir.unimas.my/id/eprint/36724/1/STUDY%20ON%20THE%20PUSH%20COATING%20FOR%20A%20LARGER%20MODULE%2024pgs.pdf
http://ir.unimas.my/id/eprint/36724/2/STUDY%20ON%20THE%20PUSH%20COATING%20FOR%20A%20LARGER%20MODULE%20ft.pdf
http://ir.unimas.my/id/eprint/36724/
_version_ 1717097763707027456
score 13.211869

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