主要研究方向为柔性主动/被动固态制冷材料与器件及多功能柔性热电材料与器件。近年来以通讯或第一作者发表的国际著名期刊有Science (2), PNAS, Nat. Commun. (5), Joule (2), Adv. Mater. (5), Chem. Soc. Rev.等；授权美国、中国、韩国专利20余项，申请国际专利2项。

代表性论文：

1. Ziyuan Wang, Yiwen Bo, Peijia Bai, Shuchao Zhang, Guanghui Li, Xiangjian Wan, Yongsheng Liu*, Rujun Ma*, Yongsheng Chen*, “Self-sustaining personal all-day thermoregulatory clothing using only sunlight”, Science 382, 1291-1296 (2023)

2. Rujun Ma, Ziyang Zhang, Kwing Tong, David Huber, Roy Kornbluh, Yongho Sungtaek Ju and Qibing Pei*, “Highly efficient electrocaloric cooling with electrostatic actuation”, Science 357,1130–1134 (2017)

3. Quan Zhang, Yufeng Wang, Yiwen Lv, Shixiong Yu, Rujun Ma*, Bioinspired zero-energy thermal-management device based on visible and infrared thermochromism for all-season energy saving, Proceedings of the National Academy of Sciences 119, 38, e2207353119 (2022)

4. Lili Liu, Yiwen Bo, Ding Zhang*, Jiaqi Guo, Wenqi Fan, Ruohan Niu, Xin Guo, Xiaotian Jiang, Rujun Ma*. 3D printable shape-customized hydrogel thermocells. National Science Review 13, nwaf518 (2025)

5. Hui Chi#, Peijia Bai#, Zhengxue Zhou, Guangfa Wang, Wenhan Xu, Yu Zhang, Hao Qin, Xinru Wang, Yunhe Zhang*, Rujun Ma*. Biomimetic actuator crafted from a relaxor ferroelectric polymer nanocomposite. Nature Communications, 17, 2155 (2026)

6. Quan Zhang, Yiwen Lv, Yufeng Wang, Shixiong Yu, Chenxi Li, Rujun Ma*, Yongsheng Chen*, Temperature-dependent dual-mode thermal management device with net zero energy for year-round energy saving, Nature Communications 13, 4874 (2022)

7. Yiwen Bo, Quan Zhang, Peijia Bai, Heng Cui, Lili Liu, Guangfa Wang, Liteng Wang, Shaoheng Yuan, Zhengxue Zhou, Rujun Ma*, Flexible active pixel-matrix ultrafast thermal camouflage using square-wave temperature, Joule 8, 2160-2169 (2024)

8. Heng Cui, Quan Zhang, Yiwen Bo, Peijia Bai, Mengyan Wang, Chunyang Zhang, Xiaoshi Qian*, Rujun Ma*. Flexible microfluidic electrocaloric cooling capillary tube with giant specific device cooling power density. Joule 6, 258-2682 (2022)

9. Peijia Bai, Quan Zhang, Heng Cui, Yiwen Bo, Ding Zhang, Wen He, Yongsheng Chen, Rujun Ma*, An active pixel-matrix electrocaloric device for targeted and differential thermal management, Advanced Materials 35, 2209181 (2023)

10. Lili Liu, Ding Zhang, Peijia Bai, YinMao, Qi Li, Jiaqi Guo, Yanjie Fang, RujunMa*, Strong tough thermogalvanic hydrogel thermocell with extraordinarily high thermoelectric performance, Advanced Materials 35, 2300696 (2023)

指导学生获国家级和省部级竞赛奖6项，培养博士生获得国家自然科学基金青年学生基础研究项目1人、中国科协青年人才托举工程博士生专项计划1人，培养博士后创新人才1人、海外博士后引才专项1人、博士后国际交流计划引进项目1人等。

2021 “潮州三环杯”第五届全国大学生材料设计邀请赛二等奖

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2024 第二届天津市大学生节能减排社会实践与科技竞赛一等奖