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...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science
2022
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| Online Access: | http://umpir.ump.edu.my/id/eprint/34911/ http://umpir.ump.edu.my/id/eprint/34911/1/Performance%20evaluation%20of%20micro%20lens%20arrays_Improvement%20of%20light%20intensity%20and%20efficiency.pdf |
| _version_ | 1848824635477458944 |
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| 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 |
| building | UMP Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T03:16:10Z |
| format | Article |
| id | ump-34911 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:16:10Z |
| publishDate | 2022 |
| publisher | Public Library of Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-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. (Published) https://doi.org/10.1371/journal.pone.0269134 https://doi.org/10.1371/journal.pone.0269134 |
| 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 |
| title | 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_short | 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 |
| topic | QA75 Electronic computers. Computer science QA76 Computer software T Technology (General) TA Engineering (General). Civil engineering (General) |
| url | http://umpir.ump.edu.my/id/eprint/34911/ http://umpir.ump.edu.my/id/eprint/34911/ http://umpir.ump.edu.my/id/eprint/34911/ http://umpir.ump.edu.my/id/eprint/34911/1/Performance%20evaluation%20of%20micro%20lens%20arrays_Improvement%20of%20light%20intensity%20and%20efficiency.pdf |