Figure 6. PL of the P3HT: PCBM blends (a) without ETL; (b) with addition of a N-ZnO compact layer as an ETL; (c) ZnO nanowires array as an ETL [54]

From

Review of ZnO Nano Devices

H. Murad, M. Abdulrahman, Y. Saleh, Ahmed M. Nahhas

American Journal of Nanomaterials. 2022, 10(1), 9-18 doi:10.12691/ajn-10-1-2