Small molecular electrolytes as the interlayer for enhanced performance of organic solar cellsExperimental |
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Authors: | Mijin Jeong Ho Cheol Jin |
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Affiliation: | Department of Polymer Engineering, Pukyong National University, Busan, South Korea |
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Abstract: | AbstractNew non-conjugated small molecules (C4-OH and C6-OH) were synthesized and applied to the inverted organic solar cells (OSCs) as the cathode interlayer (CIL). The power conversion efficiencies (PCEs) of 9.35 and 9.21% were obtained in the device based on ZnO/C4-OH and ZnO/C6-OH, which are better than those of pristine ZnO (8.74%). The work function of ZnO/C4-OH and ZnO/C6-OH are also decreased from ?4.5?to ?4.27?eV and ?4.37?eV, respectively. Consequently, OSCs with two small molecules exhibited enhanced photovoltaic properties due to the formation of interface dipole. |
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Keywords: | Cathode interlayer inverted organic solar cells small molecules |
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