TY - RPRT TI - Towards zero-threshold optical gain using charged semiconductor quantum dots AU - Wu, Kaifeng AU - Park, Young -Shin AU - Lim, Jaehoon AU - Klimov, Victor Ivanovich PY - 2017 DO - 10.1038/nnano.2017.189 UR - https://www.osti.gov/biblio/1415416 ID - 1415416 ER -