Wavelength-selective, tunable and switchable plasmonic perfect absorbers based on phase change materials Ge2Sb2Te5Ximin Tian, Junwei Xu, Kun Xu, Xiaolong Ma, Xiangyang Duan, Peng Yang, Pei Ding and Zhi-Yuan LiEPL, 128 6 (2019) 67001DOI: https://doi.org/10.1209/0295-5075/128/67001