Lei Wang, Zhuo Wang, HaiYu Wang, Gustavo Grinblat, YuLi Huang, Dan Wang, XiaoHui Ye, XianBin Li, QiaoLiang Bao, Andrew ThyeShen Wee, Stefan A. Maier, QiDai Chen, MinLin Zhong, ChengWei Qiu and HongBo Sun, Slow cooling and efficient extraction of Cexciton hot carriers in .