Penfold, TJSzlachetko, JSantomauro, FGBritz, AGawelda, WDoumy, GMarch, AMSouthworth, SHRittmann, JAbela, RChergui, MMilne, CJ2018-11-082018-11-082018-11-08201810.1038/s41467-018-02870-4https://infoscience.epfl.ch/handle/20.500.14299/150882WOS:000424060700004Revealing hole trapping in zinc oxide nanoparticles by time-resolved X-ray spectroscopytext::journal::journal article::research article