Deviatoric stress induces an intrinsic self-trapped exciton state (STE-2) and enables transitions between two intrinsic STE states in pyramidal ZnO nanocrystals. This approach results in a remarkable shift in emission energy, from 2.34 eV to 2.88 eV.
- Chaofan Lv
- Xigui Yang
- Chongxin Shan