Effect of depositing PCBM on perovskite-based metal–oxide–semiconductor field effect transistors
Luan Su-Zhen1, Wang Yu-Cheng2, Liu Yin-Tao2, Jia Ren-Xu2, †
       

(color online) Energy band diagrams of transistors (a) #1 Au/perovskite/SiO2/Si/Al (b) #2 Au/PCBM/perovskite/PCBM/SiO2/Si/Al. Ec, Ev, EF, Ecpcbm, Evpcbm, Eco, Evo, EFAl, and EFAu are the conduction band, valance band, Fermi level of perovskite, PCBM, SiO2 layer, and metal electrode, respectively. The black and white balls are symbolized as electrons and holes, respectively.