Bulk heterojunction 1 Bulk heterojunction organic solar cells 1 Capacitance 1 Capacitance voltage 1 Computer software 1 Conjugated polymers 1 Electronic equipment 1 Graphene 1 Graphene nanocomposites Heterojunctions 1 Inorganic solar cells 1 Organic solar cells 1 Poly-3-hexylthiophene 1 Polymer solar cells 1 Power conversion efficiencies 1 Silicon solar cells 1 Simulation software 1 Solar cells 1 Solar power generation 1 Thermoelectric equipment 1