@article{lee:cea-01510777, TITLE = {{Direct Experimental Evidence of Halide Ionic Migration under Bias in CH 3 NH 3 PbI 3--x Cl x ‑Based Perovskite Solar Cells Using GD-OES Analysis}}, AUTHOR = {Lee, Heejae and Gaiaschi, Sofia and Chapon, Patrick and Marronnier, Arthur and Lee, Heeryung and Vanel, Jean-Charles and Tondelier, Denis and Boure{\'e}, Jean-Eric and Bonnassieux, Yvan and Geffroy, Bernard}, URL = {https://cea.hal.science/cea-01510777}, JOURNAL = {{ACS Energy Letters}}, PUBLISHER = {{American Chemical Society }}, VOLUME = {2}, PAGES = {943 - 949}, YEAR = {2017}, MONTH = Apr, DOI = {10.1021/acsenergylett.7b00150}, HAL_ID = {cea-01510777}, HAL_VERSION = {v1}, }