Volume 136, Issue 38 e202408551
Forschungsartikel

Remarkable Second Harmonic Generation Response in (C5H6NO)+(CH3SO3): Unraveling the Role of Hydrogen Bond in Thermal Driven Nonlinear Optical Switch

Zi-Peng Zhang

Zi-Peng Zhang

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875 P. R. China

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Xin Liu

Xin Liu

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875 P. R. China

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Rui-Xi Wang

Rui-Xi Wang

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875 P. R. China

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Dr. Shuang Zhao

Dr. Shuang Zhao

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875 P. R. China

Center for Advanced Materials Research, Beijing Normal University, Zhuhai, 519087 P. R. China

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Wen-Jie He

Wen-Jie He

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875 P. R. China

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Hong-Yu Chen

Hong-Yu Chen

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875 P. R. China

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Dr. Xue-Bin Deng

Dr. Xue-Bin Deng

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875 P. R. China

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Prof. Dr. Li-Ming Wu

Corresponding Author

Prof. Dr. Li-Ming Wu

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875 P. R. China

Center for Advanced Materials Research, Beijing Normal University, Zhuhai, 519087 P. R. China

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Dr. Zhengyang Zhou

Corresponding Author

Dr. Zhengyang Zhou

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 P. R. China

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Prof. Dr. Ling Chen

Corresponding Author

Prof. Dr. Ling Chen

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875 P. R. China

Center for Advanced Materials Research, Beijing Normal University, Zhuhai, 519087 P. R. China

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First published: 10 June 2024
Citations: 4

Abstract

Heat-activated second harmonic generation (SHG) switching materials are gaining interest for their ability to switch between SHG on and off states, offering potential in optoelectronic applications. The novel nonlinear optical (NLO) switch, (C5H6NO)+(CH3SO3) (4-hydroxypyridinium methylsulfonate, 4HPMS), is a near-room-temperature thermal driven material with a strong SHG response (3.3 × KDP), making it one of the most potent heat-stimulated NLO switches. It offers excellent contrast of 13 and a high laser-induced damage threshold (2.5 × KDP), with reversibility > 5 cycles. At 73 °C, 4HPMS transitions from the noncentrosymmetric Pna21 room temperature phase (RTP) to the centrosymmetric P21/c phase, caused by the rotation of the (C5H6NO)+ and (CH3SO3) due to partially thermal breaking of intermolecular hydrogen bonds. The reverse phase change exhibits a large 50 °C thermal hysteresis. Density functional theory (DFT) calculations show that (C5H6NO)+ primarily dictates both the SHG coefficient (dij) and birefringence (▵n(Zeiss) = 0.216 vs ▵n(cal.) = 0.202 at 546 nm; Δn(Immersion) = 0.210 vs ▵n(cal.) = 0.198 at 589.3 nm), while the band gap (Eg) is influenced synergistically by (C5H6NO)+ and (CH3SO3). Additionally, 4HPMS-RTP also exhibits mechanochromism upon grinding as well as an aggregation-enhanced emission in a mixture of acetone and water.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the Supporting Information of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.