Lanthanide and Ladder-Structured Polysilsesquioxane Composites for Transparent Color Conversion Layers
Ladder-type polysilsesquioxanes (LPSQs) containing phenyl as a high refractive index unit and cyclic epoxy as a curable unit were found to be excellent candidates for a transparent color conversion layer for displays due to being miscible with organic solvents and amenable to transparent film format...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/6/2537 |
| _version_ | 1797610443143905280 |
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| author | Jaehyun Han Darya Burak Valeriia Poliukhova Albert S. Lee Hoseong Jang Seungsang Hwang Kyung-Youl Baek Joonsoo Han Byeong-Kwon Ju So-Hye Cho |
| author_facet | Jaehyun Han Darya Burak Valeriia Poliukhova Albert S. Lee Hoseong Jang Seungsang Hwang Kyung-Youl Baek Joonsoo Han Byeong-Kwon Ju So-Hye Cho |
| author_sort | Jaehyun Han |
| collection | DOAJ |
| description | Ladder-type polysilsesquioxanes (LPSQs) containing phenyl as a high refractive index unit and cyclic epoxy as a curable unit were found to be excellent candidates for a transparent color conversion layer for displays due to being miscible with organic solvents and amenable to transparent film formation. Therefore, the LPSQs were combined with luminescent lanthanide metals, europium Eu(III), and terbium Tb(III), to fabricate transparent films with various emission colors, including red, orange, yellow, and green. The high luminescence and transmittance properties of the LPSQs–lanthanide composite films after thermal curing were attributed to chelating properties of hydroxyl and polyether side chains of LPSQs to lanthanide ions, as well as a light sensitizing effect of phenyl side chains of the LPSQs. Furthermore, Fourier-transform infrared (FT-IR) and X-ray photoelectron spectroscopy and nanoindentation tests indicated that the addition of the nanoparticles to the LPSQs moderately enhanced the epoxy conversion rate and substantially improved the wear resistance, including hardness, adhesion, and insusceptibility to atmospheric corrosion in a saline environment. Thus, the achieved LPGSG–lanthanide hybrid organic–inorganic material could effectively serve as a color conversion layer for displays. |
| first_indexed | 2024-03-11T06:14:12Z |
| format | Article |
| id | doaj.art-733d3567bdea4370a96dcd954f4b6462 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T06:14:12Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-733d3567bdea4370a96dcd954f4b64622023-11-17T12:23:41ZengMDPI AGMaterials1996-19442023-03-01166253710.3390/ma16062537Lanthanide and Ladder-Structured Polysilsesquioxane Composites for Transparent Color Conversion LayersJaehyun Han0Darya Burak1Valeriia Poliukhova2Albert S. Lee3Hoseong Jang4Seungsang Hwang5Kyung-Youl Baek6Joonsoo Han7Byeong-Kwon Ju8So-Hye Cho9Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of KoreaDisplay and Nanosystem Laboratory, College of Engineering, Korea University, Seoul 02841, Republic of KoreaMaterials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of KoreaLadder-type polysilsesquioxanes (LPSQs) containing phenyl as a high refractive index unit and cyclic epoxy as a curable unit were found to be excellent candidates for a transparent color conversion layer for displays due to being miscible with organic solvents and amenable to transparent film formation. Therefore, the LPSQs were combined with luminescent lanthanide metals, europium Eu(III), and terbium Tb(III), to fabricate transparent films with various emission colors, including red, orange, yellow, and green. The high luminescence and transmittance properties of the LPSQs–lanthanide composite films after thermal curing were attributed to chelating properties of hydroxyl and polyether side chains of LPSQs to lanthanide ions, as well as a light sensitizing effect of phenyl side chains of the LPSQs. Furthermore, Fourier-transform infrared (FT-IR) and X-ray photoelectron spectroscopy and nanoindentation tests indicated that the addition of the nanoparticles to the LPSQs moderately enhanced the epoxy conversion rate and substantially improved the wear resistance, including hardness, adhesion, and insusceptibility to atmospheric corrosion in a saline environment. Thus, the achieved LPGSG–lanthanide hybrid organic–inorganic material could effectively serve as a color conversion layer for displays.https://www.mdpi.com/1996-1944/16/6/2537ladder-structuredpolysilsesquioxanelanthanidecolor conversion layertransparent film |
| spellingShingle | Jaehyun Han Darya Burak Valeriia Poliukhova Albert S. Lee Hoseong Jang Seungsang Hwang Kyung-Youl Baek Joonsoo Han Byeong-Kwon Ju So-Hye Cho Lanthanide and Ladder-Structured Polysilsesquioxane Composites for Transparent Color Conversion Layers Materials ladder-structured polysilsesquioxane lanthanide color conversion layer transparent film |
| title | Lanthanide and Ladder-Structured Polysilsesquioxane Composites for Transparent Color Conversion Layers |
| title_full | Lanthanide and Ladder-Structured Polysilsesquioxane Composites for Transparent Color Conversion Layers |
| title_fullStr | Lanthanide and Ladder-Structured Polysilsesquioxane Composites for Transparent Color Conversion Layers |
| title_full_unstemmed | Lanthanide and Ladder-Structured Polysilsesquioxane Composites for Transparent Color Conversion Layers |
| title_short | Lanthanide and Ladder-Structured Polysilsesquioxane Composites for Transparent Color Conversion Layers |
| title_sort | lanthanide and ladder structured polysilsesquioxane composites for transparent color conversion layers |
| topic | ladder-structured polysilsesquioxane lanthanide color conversion layer transparent film |
| url | https://www.mdpi.com/1996-1944/16/6/2537 |
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