Unusual Thermo‐Enhanced Second Harmonic Generation in Organic Configurationally‐Locked Polyene Crystals
Abstract To modulate nonlinear optical (NLO) effects of crystalline material holds great application potential in the photoelectronic and optical fields. Organic configurationally‐locked polyene represents an exciting NLO family with large second harmonic generation (SHG) effects, whereas it is a hu...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202412218 |
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| author | Yi Liu Pengfei Zhu Qingshun Fan Zihao Zhao Linjie Wei Yu Ma Haojie Xu Wuqian Guo Junhua Luo Zhihua Sun |
| author_facet | Yi Liu Pengfei Zhu Qingshun Fan Zihao Zhao Linjie Wei Yu Ma Haojie Xu Wuqian Guo Junhua Luo Zhihua Sun |
| author_sort | Yi Liu |
| collection | DOAJ |
| description | Abstract To modulate nonlinear optical (NLO) effects of crystalline material holds great application potential in the photoelectronic and optical fields. Organic configurationally‐locked polyene represents an exciting NLO family with large second harmonic generation (SHG) effects, whereas it is a huge blank to switch and modulate their NLO property through external stimuli. For the first time, here present unusual thermo‐enhanced SHG activities are presented in a polyene‐based NLO compound, 2‐{3‐[2‐(4‐pyrrolidinphenyl)vinyl]‐5,5‐dimethylcyclohex‐2‐enylidene}malononitrile (1), giving a record‐high magnitude of SHG enhancement up to ≈170% during its isomorphic phase transition. Theoretical analysis discloses this behavior stems from the reduced degree of torsion in the π‐conjugated structures in 1, as verified by dihedral angles between its pyrrolidine and phenyl planes. As the first study on thermo‐enhanced SHG properties of organic crystals, this work affords a new avenue of modulating physical properties to fabricate high‐performance photoelectronic and optical devices. |
| format | Article |
| id | doaj-art-e4d5bcb12c214dc68ce2761517398c47 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-e4d5bcb12c214dc68ce2761517398c472025-01-20T13:04:18ZengWileyAdvanced Science2198-38442025-01-01123n/an/a10.1002/advs.202412218Unusual Thermo‐Enhanced Second Harmonic Generation in Organic Configurationally‐Locked Polyene CrystalsYi Liu0Pengfei Zhu1Qingshun Fan2Zihao Zhao3Linjie Wei4Yu Ma5Haojie Xu6Wuqian Guo7Junhua Luo8Zhihua Sun9State Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaState Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaState Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaState Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaState Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaState Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaState Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaState Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaState Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaState Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002P. R. ChinaAbstract To modulate nonlinear optical (NLO) effects of crystalline material holds great application potential in the photoelectronic and optical fields. Organic configurationally‐locked polyene represents an exciting NLO family with large second harmonic generation (SHG) effects, whereas it is a huge blank to switch and modulate their NLO property through external stimuli. For the first time, here present unusual thermo‐enhanced SHG activities are presented in a polyene‐based NLO compound, 2‐{3‐[2‐(4‐pyrrolidinphenyl)vinyl]‐5,5‐dimethylcyclohex‐2‐enylidene}malononitrile (1), giving a record‐high magnitude of SHG enhancement up to ≈170% during its isomorphic phase transition. Theoretical analysis discloses this behavior stems from the reduced degree of torsion in the π‐conjugated structures in 1, as verified by dihedral angles between its pyrrolidine and phenyl planes. As the first study on thermo‐enhanced SHG properties of organic crystals, this work affords a new avenue of modulating physical properties to fabricate high‐performance photoelectronic and optical devices.https://doi.org/10.1002/advs.202412218nonlinear optical crystalorganic configurationally‐locked polyenephase transitionthermo‐enhanced second harmonic generation |
| spellingShingle | Yi Liu Pengfei Zhu Qingshun Fan Zihao Zhao Linjie Wei Yu Ma Haojie Xu Wuqian Guo Junhua Luo Zhihua Sun Unusual Thermo‐Enhanced Second Harmonic Generation in Organic Configurationally‐Locked Polyene Crystals Advanced Science nonlinear optical crystal organic configurationally‐locked polyene phase transition thermo‐enhanced second harmonic generation |
| title | Unusual Thermo‐Enhanced Second Harmonic Generation in Organic Configurationally‐Locked Polyene Crystals |
| title_full | Unusual Thermo‐Enhanced Second Harmonic Generation in Organic Configurationally‐Locked Polyene Crystals |
| title_fullStr | Unusual Thermo‐Enhanced Second Harmonic Generation in Organic Configurationally‐Locked Polyene Crystals |
| title_full_unstemmed | Unusual Thermo‐Enhanced Second Harmonic Generation in Organic Configurationally‐Locked Polyene Crystals |
| title_short | Unusual Thermo‐Enhanced Second Harmonic Generation in Organic Configurationally‐Locked Polyene Crystals |
| title_sort | unusual thermo enhanced second harmonic generation in organic configurationally locked polyene crystals |
| topic | nonlinear optical crystal organic configurationally‐locked polyene phase transition thermo‐enhanced second harmonic generation |
| url | https://doi.org/10.1002/advs.202412218 |
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