|
| 富勒烯掺杂的光致聚合物的全息存储特性研究 |
| Study on holographic storage properties of fullerene-doped photopolymer |
| 投稿时间：2023-03-17 |
| DOI：10.3969/j.issn.1005-5630.202303170066 |
| 中文关键词: 衍射光学 富勒烯 衍射效率 光致聚合物 全息光存储 |
| 英文关键词:diffractive optics fullerene diffraction efficiency photopolymer holographic optical storage |
| 基金项目: |
|
| 摘要点击次数: 1484 |
| 全文下载次数: 1304 |
| 中文摘要: |
| 研究了富勒烯对六官能团脂肪族聚氨酯丙烯酸酯/环氧树脂(RJ423/ EPIKOTE 828)体系光致聚合物的全息性能的影响，分析了富勒烯(C60)材料以及曝光光强对光致聚合物衍射效率的影响。通过吸收光谱结合X射线衍射图谱分析，掺杂的富勒烯既没有和聚合物中的其他成分发生化学反应，也不影响材料本身的结构和结晶性能。实验结果表明，富勒烯掺杂提高了单体聚合反应的速率，并且参与活性单体分子之间的扩散。在光强20 mW/cm2、时间40～50 s、厚度200 μm时，光致聚合物的衍射效率提升到86%，感光灵敏度达到1.32 cm2/J，收缩率降低了约80%。由于C60促进聚合，抑制体积收缩，从而增强全息存储的稳定性，经过全息图像存储实验对比，证明该光致聚合物掺杂富勒烯之后具有优秀的全息存储性能，同时也表明富勒烯掺杂的光致聚合物在全息储存领域具有较大的应用前景。 |
| 英文摘要: |
| In this paper, the effect of fullerene on the holographic properties of photopolymers in the hexafunctional aliphatic polyurethane acrylate/epoxy resin (RJ423/EPIKOTE 828) system was studied, and the influence of fullerene (C60) and exposure light intensity on photopolymers diffraction efficiency were analyzed. The absorption spectrum combined with X-ray diffraction pattern analysis illustrates that the doped fullerene does not chemically reacts with other components in the polymer, and does not impacts on its structure and crystallization properties. Experimental results demonstrate that fullerene doping can effectively increase the rate of monomer polymerization and participate in the diffusion between active monomer molecules. The diffraction efficiency of the photopolymer increases to 86% with the thickness of 200 μm, which the photosensitivity reaches 1.32 cm2/J and the shrinkage rate is reduced by 5 times under the light intensity of 20 mW/cm2 for time of 40～50 s. C60 may enhance the stability of holographic storage, owing to the promotion of polymerization and the suppression of the shrinkage. The comparison of holographic image storage experiments illuminates that the photopolymer doped with fullerene has excellent holographic storage performance, which also shows that fullerene doped photopolymers have great application prospects in the field of holographic storage. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
