Forward bias 2-Methoxyethanol 1 Anomalous behavior 1 Bias conditions 1 Bias levels 1 Efficiency 1 Electrooptical properties 1 Hydrothermal growth 1 Intensity-dependent 1 Light excitation 1 Light-induced 1 Methanol 1 Monoethanolamine 1 Morphology 1 Multiphonons 1 Nanorods 1 Organic solar cells 1 Potassium hydroxide 1 Quantum efficiency 1 Raman studies 1 Scanning electron microscopy 1 Seed layer 1 Seed solution 1 Shockley-Read-Hall models 1 Silicon substrates 1 Trap filling 1 X ray diffraction 1 Zinc acetate dihydrate 1 Zinc compounds 1 Zinc oxide 1