@article{KraftWuerthPaloetal.2019, author = {Marco Kraft and Christian W{\"u}rth and Emilia Palo and Tero Soukka and Ute Resch-Genger}, title = {Colour-optimized quantum yields of Yb, Tm Co-doped upconversion nanocrystals}, journal = {Methods and Applications in Fluorescence}, volume = {7}, number = {2}, pages = {024001, 1 -- 6}, doi = {10.1088/2050-6120/ab023b}, year = {2019}, }