Improvement in the Power Conversion Efficiency of Bulk Heterojunction Photovoltaic Device via Thermal Postannealing of Subphthalocyanine:C<sub>70</sub> Active Layer

<table>Chemical structures of SubPc, C<sub>70</sub>, AlmND<sub>3</sub>, and their energy level alignments in OPVs.</table>

International Journal of Photoenergy

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Figure 1

Figure 1: Improvement in the Power Conversion Efficiency of Bulk Heterojunction Photovoltaic Device via Thermal Postannealing of Subphthalocyanine:C<sub>70</sub> Active Layer 

Figure 1 | Improvement in the Power Conversion Efficiency of Bulk Heterojunction Photovoltaic Device via Thermal Postannealing of Subphthalocyanine:C70 Active Layer 