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Performance evaluation of micro lens arrays: Improvement of light intensity and efficiency of white organic light emitting diodes

This paper proposes a unique method to improve light intensity and efficiency of white organic light emitting diodes (OLEDs) by engraving micro lens arrays (MLAs) on the outer face of the substrate layer. The addition of MLAs on the substrate layer improves the light intensity and external quantum e...

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Main Authors: Adhikary, Apurba, Bhuiya, Joy, Murad, Saydul Akbar, Hossain, Md. Bipul, Aslam Uddin, K. M., Faysal, MD Estihad, Rahaman, Abidur, Bairagi, Anupam Kumar
Format: Article
Language:English
Published: Public Library of Science 2022
Subjects:
QA75 Electronic computers. Computer science
QA76 Computer software
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/34911/1/Performance%20evaluation%20of%20micro%20lens%20arrays_Improvement%20of%20light%20intensity%20and%20efficiency.pdf
http://umpir.ump.edu.my/id/eprint/34911/
https://doi.org/10.1371/journal.pone.0269134
https://doi.org/10.1371/journal.pone.0269134
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spelling my.ump.umpir.349112022-11-03T03:48:10Z http://umpir.ump.edu.my/id/eprint/34911/ Performance evaluation of micro lens arrays: Improvement of light intensity and efficiency of white organic light emitting diodes Adhikary, Apurba Bhuiya, Joy Murad, Saydul Akbar Hossain, Md. Bipul Aslam Uddin, K. M. Faysal, MD Estihad Rahaman, Abidur Bairagi, Anupam Kumar QA75 Electronic computers. Computer science QA76 Computer software T Technology (General) TA Engineering (General). Civil engineering (General) This paper proposes a unique method to improve light intensity and efficiency of white organic light emitting diodes (OLEDs) by engraving micro lens arrays (MLAs) on the outer face of the substrate layer. The addition of MLAs on the substrate layer improves the light intensity and external quantum efficiency (EQE) of the OLEDs. The basic OLED model achieved an EQE of 14.45% for the effective refractive index (ERI) of 1.86. The spherical and elliptical (planoconvex and planoconcave) MLAs were incorporated on the outer face of the substrate layer to increase the EQE of the OLEDs. The maximum EQE of 17.30% was obtained for Convex-1 (elliptical planoconvex) MLA engraved OLED where the ERI was 1.70. In addition, Convex-1 MLA engraved OLED showed an improvement of 3.8 times on the peak electroluminescence (EL) light intensity compared to basic OLED. Therefore, Convex-1 MLA incorporated OLED can be considered as a potential white OLED because of its excellent light distribution and intensity profile. Public Library of Science 2022-05 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/34911/1/Performance%20evaluation%20of%20micro%20lens%20arrays_Improvement%20of%20light%20intensity%20and%20efficiency.pdf Adhikary, Apurba and Bhuiya, Joy and Murad, Saydul Akbar and Hossain, Md. Bipul and Aslam Uddin, K. M. and Faysal, MD Estihad and Rahaman, Abidur and Bairagi, Anupam Kumar (2022) Performance evaluation of micro lens arrays: Improvement of light intensity and efficiency of white organic light emitting diodes. PLoS ONE, 17 (5). pp. 1-28. ISSN 1932-6203 https://doi.org/10.1371/journal.pone.0269134 https://doi.org/10.1371/journal.pone.0269134
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic QA75 Electronic computers. Computer science
QA76 Computer software
T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle QA75 Electronic computers. Computer science
QA76 Computer software
T Technology (General)
TA Engineering (General). Civil engineering (General)
Adhikary, Apurba
Bhuiya, Joy
Murad, Saydul Akbar
Hossain, Md. Bipul
Aslam Uddin, K. M.
Faysal, MD Estihad
Rahaman, Abidur
Bairagi, Anupam Kumar
Performance evaluation of micro lens arrays: Improvement of light intensity and efficiency of white organic light emitting diodes
description This paper proposes a unique method to improve light intensity and efficiency of white organic light emitting diodes (OLEDs) by engraving micro lens arrays (MLAs) on the outer face of the substrate layer. The addition of MLAs on the substrate layer improves the light intensity and external quantum efficiency (EQE) of the OLEDs. The basic OLED model achieved an EQE of 14.45% for the effective refractive index (ERI) of 1.86. The spherical and elliptical (planoconvex and planoconcave) MLAs were incorporated on the outer face of the substrate layer to increase the EQE of the OLEDs. The maximum EQE of 17.30% was obtained for Convex-1 (elliptical planoconvex) MLA engraved OLED where the ERI was 1.70. In addition, Convex-1 MLA engraved OLED showed an improvement of 3.8 times on the peak electroluminescence (EL) light intensity compared to basic OLED. Therefore, Convex-1 MLA incorporated OLED can be considered as a potential white OLED because of its excellent light distribution and intensity profile.
format Article
author Adhikary, Apurba
Bhuiya, Joy
Murad, Saydul Akbar
Hossain, Md. Bipul
Aslam Uddin, K. M.
Faysal, MD Estihad
Rahaman, Abidur
Bairagi, Anupam Kumar
author_facet Adhikary, Apurba
Bhuiya, Joy
Murad, Saydul Akbar
Hossain, Md. Bipul
Aslam Uddin, K. M.
Faysal, MD Estihad
Rahaman, Abidur
Bairagi, Anupam Kumar
author_sort Adhikary, Apurba
title Performance evaluation of micro lens arrays: Improvement of light intensity and efficiency of white organic light emitting diodes
title_short Performance evaluation of micro lens arrays: Improvement of light intensity and efficiency of white organic light emitting diodes
title_full Performance evaluation of micro lens arrays: Improvement of light intensity and efficiency of white organic light emitting diodes
title_fullStr Performance evaluation of micro lens arrays: Improvement of light intensity and efficiency of white organic light emitting diodes
title_full_unstemmed Performance evaluation of micro lens arrays: Improvement of light intensity and efficiency of white organic light emitting diodes
title_sort performance evaluation of micro lens arrays: improvement of light intensity and efficiency of white organic light emitting diodes
publisher Public Library of Science
publishDate 2022
url http://umpir.ump.edu.my/id/eprint/34911/1/Performance%20evaluation%20of%20micro%20lens%20arrays_Improvement%20of%20light%20intensity%20and%20efficiency.pdf
http://umpir.ump.edu.my/id/eprint/34911/
https://doi.org/10.1371/journal.pone.0269134
https://doi.org/10.1371/journal.pone.0269134
_version_ 1748703313493229568
score 13.211869

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