Germinant ZnO nanorods as a charge-selective layer in organic solar cells
Kunsik Ana,b,**(), Jaehoon Kima, Mohammad Afsar Uddinc, Seunghyun Rheea, Hyeok Kimd, Kyung-Tae Kangb, Han Young Wooc,*(), Changhee Leea,*()

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Fig. 1.. Cross-sectional scanning electron microscopy (SEM) images of ZnO nanorods (NRs) after (a) 60 min, (b) 70 min, (c) 80 min, (d) 90 min, and (e) 100 min growth time and (f) a top-view image of ZnO NRs after 100 min growth time.