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. 3.. UV/Vis absorption spectra of (a) ZnO nanorods (NRs) with respect to length variation and (b) PPDT2FBT:PC70BM layer deposited on ZnO NR arrays of various length (line), ZnO NRs arrays without PPDT2FBT:PC70BM deposition (dotted line).