顺反异构转变是偶氮苯类材料实现光能转化为机械能的常见手段。但非实时、原位和单一的测试难解释这一动态过程中应力产生的原因。本申请拟通过搭建显微拉曼光谱和微梁阵列传感器联用的新型检测系统，对顺反异构化过程中结构和应力的关系进行研究。通过微梁阵列的往复平动实现激光对梁自由端的相对往复一维运动；在梁另一侧上方，添加显微拉曼光谱模块、单筒显微视频观察模块和紫外/可见光照射模块；利用该系统实现在紫外/可见光照射下分子结构和表面应力的表征；利用分子动力学和密度泛函理论对偶氮苯的顺反异构化过程和几何结构进行模拟分析。结合实验结果和模拟分析，研究这类新颖材料的结构和力学性能的关系，探讨由于结构变化产生应力的机理。并利用上述机理设计新型偶氮苯复合材料并制备光控促动器。该联用系统的搭建和机理的研究，有助推动对光响应过程机理进行深入探讨，也为相关的催化和降解等界面问题提供一种新的研究手段。

The cis-trans isomerization transformation is a common method for the conversion of light energy into mechanical energy for an azo polymers material film. However, a single measurement can hardly explain the cause of surface tension in the conversion process. Raman spectroscopy can be used to characterize the advantages of the material structure，so the combination system of the microcantilever array system and Micro-Raman spectroscopy was built in this application to realize real-time in-situ detection of structural and surface mechanical properties of azo polymers material during light energy and mechanical conversion. The free end of the cantilever, by means of the translational reciprocation of the microcantilever array, was scanned by laser. On top of the other side of the microcantilever, a micro-Raman, a single-pass video acquisition module and an ultraviolet light irradiation module were set up. This system is used to realize the real-time in-situ characterization of micro molecular structure and surface stress during cis-trans isomerization of azo polymers under UV light irradiation, and the relationship between the microstructure change process and surface mechanics is also studied. The density functional theory is used to simulate and analyze the geometric structure and mechanical properties of azo polymers, and the theoretical structure is combined with the actual structure and mechanical galaxy mentioned above to explore the mechanism of stress generation. According to the above mechanism, a new type of azobenzene composite materials are designed and controllable light control actuators can be prepared. The construction of the combined system will help to study the mechanism of photo-mechanical energy conversion in photoisomerization, and also provide theoretical support for the design of controllable light control actuators.