Effect of Quantum Dot-Based Remote Lenses on the Emission Properties of White LED Lighting Studied by Optical Simulation and Experiment
The introduction of side-emitting lenses into white light-emitting diodes (LEDs) has enabled thin panel lighting technology based on LED technology, but also presents the disadvantage of low color rendering due to insufficient red components in the spectra of typical white LEDs. Additional applicati...
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MDPI AG
2025-04-01
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| Series: | Ceramics |
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| Online Access: | https://www.mdpi.com/2571-6131/8/2/39 |
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| author | Sung Min Park Eunki Baek Sohee Kim Jaehyeong Yoo Sung-Yoon Joe Jae-Hyeon Ko Taehee Park Young Wook Ko |
| author_facet | Sung Min Park Eunki Baek Sohee Kim Jaehyeong Yoo Sung-Yoon Joe Jae-Hyeon Ko Taehee Park Young Wook Ko |
| author_sort | Sung Min Park |
| collection | DOAJ |
| description | The introduction of side-emitting lenses into white light-emitting diodes (LEDs) has enabled thin panel lighting technology based on LED technology, but also presents the disadvantage of low color rendering due to insufficient red components in the spectra of typical white LEDs. Additional application of remote quantum dot (QD) components such as QD films or caps presents the issues of increased numbers of components and higher costs. In this study, we incorporated red QDs directly into a lens placed on white LEDs and analyzed the effects of QD lenses on the optical characteristics of a lighting device through experiments and simulations. By incorporating red CdSe/ZnS QDs into UV-curable resin to fabricate QD lenses and applying them to white LEDs, we significantly improved the color rendering index and were able to adjust the correlated color temperature over a wide range between 2700 and 9900 K. However, as the concentration of QDs in the lens increased, scattering by the QD particles was enhanced, strengthening the Lambertian distribution in the intensity plot. Following the development of optical models for QD lenses under experimental conditions, comprehensive optical simulations of white LED lighting systems revealed that increasing the device height proved more effective than modifying TiO<sub>2</sub> scattering particle concentration in the diffuser plate for mitigating QD-induced bright spots and enhancing illumination uniformity. |
| format | Article |
| id | doaj-art-a19a97c1d37f4348b547843c6a6fd17d |
| institution | Matheson Library |
| issn | 2571-6131 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Ceramics |
| spelling | doaj-art-a19a97c1d37f4348b547843c6a6fd17d2025-06-25T13:36:46ZengMDPI AGCeramics2571-61312025-04-01823910.3390/ceramics8020039Effect of Quantum Dot-Based Remote Lenses on the Emission Properties of White LED Lighting Studied by Optical Simulation and ExperimentSung Min Park0Eunki Baek1Sohee Kim2Jaehyeong Yoo3Sung-Yoon Joe4Jae-Hyeon Ko5Taehee Park6Young Wook Ko7School of Nano Convergence Technology, Nano Convergence Technology Center, Hallym University, Gangwon-do, Chuncheon-si 24252, Republic of KoreaSchool of Nano Convergence Technology, Nano Convergence Technology Center, Hallym University, Gangwon-do, Chuncheon-si 24252, Republic of KoreaSchool of Nano Convergence Technology, Nano Convergence Technology Center, Hallym University, Gangwon-do, Chuncheon-si 24252, Republic of KoreaSchool of Nano Convergence Technology, Nano Convergence Technology Center, Hallym University, Gangwon-do, Chuncheon-si 24252, Republic of KoreaSchool of Nano Convergence Technology, Nano Convergence Technology Center, Hallym University, Gangwon-do, Chuncheon-si 24252, Republic of KoreaSchool of Nano Convergence Technology, Nano Convergence Technology Center, Hallym University, Gangwon-do, Chuncheon-si 24252, Republic of KoreaGLVISION Co., Ltd., Room 1034, 9-36 Supuran-gil, Siheung-si 14986, Republic of KoreaGLVISION Co., Ltd., Room 1034, 9-36 Supuran-gil, Siheung-si 14986, Republic of KoreaThe introduction of side-emitting lenses into white light-emitting diodes (LEDs) has enabled thin panel lighting technology based on LED technology, but also presents the disadvantage of low color rendering due to insufficient red components in the spectra of typical white LEDs. Additional application of remote quantum dot (QD) components such as QD films or caps presents the issues of increased numbers of components and higher costs. In this study, we incorporated red QDs directly into a lens placed on white LEDs and analyzed the effects of QD lenses on the optical characteristics of a lighting device through experiments and simulations. By incorporating red CdSe/ZnS QDs into UV-curable resin to fabricate QD lenses and applying them to white LEDs, we significantly improved the color rendering index and were able to adjust the correlated color temperature over a wide range between 2700 and 9900 K. However, as the concentration of QDs in the lens increased, scattering by the QD particles was enhanced, strengthening the Lambertian distribution in the intensity plot. Following the development of optical models for QD lenses under experimental conditions, comprehensive optical simulations of white LED lighting systems revealed that increasing the device height proved more effective than modifying TiO<sub>2</sub> scattering particle concentration in the diffuser plate for mitigating QD-induced bright spots and enhancing illumination uniformity.https://www.mdpi.com/2571-6131/8/2/39Quantum dotLEDQD lenscolor renderinguniformityoptical simulation |
| spellingShingle | Sung Min Park Eunki Baek Sohee Kim Jaehyeong Yoo Sung-Yoon Joe Jae-Hyeon Ko Taehee Park Young Wook Ko Effect of Quantum Dot-Based Remote Lenses on the Emission Properties of White LED Lighting Studied by Optical Simulation and Experiment Ceramics Quantum dot LED QD lens color rendering uniformity optical simulation |
| title | Effect of Quantum Dot-Based Remote Lenses on the Emission Properties of White LED Lighting Studied by Optical Simulation and Experiment |
| title_full | Effect of Quantum Dot-Based Remote Lenses on the Emission Properties of White LED Lighting Studied by Optical Simulation and Experiment |
| title_fullStr | Effect of Quantum Dot-Based Remote Lenses on the Emission Properties of White LED Lighting Studied by Optical Simulation and Experiment |
| title_full_unstemmed | Effect of Quantum Dot-Based Remote Lenses on the Emission Properties of White LED Lighting Studied by Optical Simulation and Experiment |
| title_short | Effect of Quantum Dot-Based Remote Lenses on the Emission Properties of White LED Lighting Studied by Optical Simulation and Experiment |
| title_sort | effect of quantum dot based remote lenses on the emission properties of white led lighting studied by optical simulation and experiment |
| topic | Quantum dot LED QD lens color rendering uniformity optical simulation |
| url | https://www.mdpi.com/2571-6131/8/2/39 |
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