TY - JOUR T1 - Photoluminescence upconversion at interfaces driven by a sequential two-photon absorption mechanism JO - Physical Review B UR - http://eprints.whiterose.ac.uk/102413/ PY - 2016/06/09 AU - Hylton NP AU - Hinrichsen TF AU - Vaquero-Stainer AR AU - Yoshida M AU - Pusch A AU - Hopkinson M AU - Hess O AU - Phillips CC AU - Ekins-Daukes NJ ED - DO - DOI: 10.1103/PhysRevB.93.235303 VL - 93 IS - 23 Y2 - 2024/10/18 ER -