Regulation of intermolecular interaction energies for improving polarization-sensitive photodetection

In this study, we systematically modified the polymer structure by incorporating non-conjugated units and substituting atoms in the fused-ring core, resulting in significant alterations to intermolecular interaction energies of −974.1, −1076.4, and −1115.1 kJ/mol between the polymer:chloroform and polymer:ethylene glycol. These modifications greatly enhance the orientation of the all-polymer backbone and the intrinsic polarization-sensitive performance of the device, demonstrating exceptional capabilities in polarized light detection and imaging. The optimal device exhibits an ultra-fast response speed of 10.6 μs, a wide frequency response of 17.78 kHz, and a large linear dynamic range of 132.3 dB with good imaging ability, indicating potential benefits for a diverse array of extreme applications. This work illustrates how the strategy of incorporating non-conjugated units and modifying the core atoms can contribute to continuous improvements in molecular orientation and polarized light detection.

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Publication Details

Journal
Applied Physics Letters
Published
2025-02-03
DOI
https://doi.org/10.1063/5.0250629
Primary Topic
Analytical Chemistry and Sensors
Type
article
Field-Weighted Citation Impact
0.00

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article

Regulation of intermolecular interaction energies for improving polarization-sensitive photodetection

Qunping Fan, Wei Zhang, Jun Luo, Peng Chen et al.
Applied Physics Letters
Analytical Chemistry and Sensors
article

Regulation of intermolecular interaction energies for improving polarization-sensitive photodetection

Qunping Fan, Wei Zhang, Jun Luo, Peng Chen, Chuan Chen, Jia‐Xing Jiang, Wenjie Mai, Yibo Lv, Lintao Hou, Zhiyuan Tan, Yijing Fan, Renqiang Yang, Guoshun Lin, Wenyan Su, Feng Yu, Zhimin Shao
article en

Abstract

In this study, we systematically modified the polymer structure by incorporating non-conjugated units and substituting atoms in the fused-ring core, resulting in significant alterations to intermolecular interaction energies of −974.1, −1076.4, and −1115.1 kJ/mol between the polymer:chloroform and polymer:ethylene glycol. These modifications greatly enhance the orientation of the all-polymer backbone and the intrinsic polarization-sensitive performance of the device, demonstrating exceptional capabilities in polarized light detection and imaging. The optimal device exhibits an ultra-fast response speed of 10.6 μs, a wide frequency response of 17.78 kHz, and a large linear dynamic range of 132.3 dB with good imaging ability, indicating potential benefits for a diverse array of extreme applications. This work illustrates how the strategy of incorporating non-conjugated units and modifying the core atoms can contribute to continuous improvements in molecular orientation and polarized light detection.

Applied Physics LettersVol. 126(5)
Xi'an University of Science and Technology (CN), Jinan University (CN), China Mobile (China) (CN), Jianghan University (CN), Guangzhou University (CN), Division of Materials Science and Engineering (AU), Xi'an Jiaotong University (CN)
National Natural Science Foundation of China
Openalex Percentile: Top 97%
Analytical Chemistry and Sensors
DOISourceOpenAlex
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