Correction to: Scientific Reports https://doi.org/10.1038/s41598-023-33550-z, published online 18 April 2023


The original version of this Article contained an error in Figure 3 where the line colour of the experimental results and the line colour of the simulation results were swapped in panel (a). The original Figure 3 and accompanying legend appear below.

Figure 3
figure 3

Comparison with 1D numerical simulation results. (a) Thermionic operation. (b) Photocathode operation.


The original Article has been corrected.