@article{article, title = {{Photoluminescence upconversion at interfaces driven by a sequential two-photon absorption mechanism}}, url = {{http://eprints.whiterose.ac.uk/102413/ }}, year = {{2016}}, month = {{6}}, author = {{Hylton NP and Hinrichsen TF and Vaquero-Stainer AR and Yoshida M and Pusch A and Hopkinson M and Hess O and Phillips CC and Ekins-Daukes NJ}}, doi = {{10.1103/PhysRevB.93.235303}}, volume = {{93}}, journal = {{Physical Review B}}, issue = {{23}}, note = {{Accessed on 2024/10/18}}}