| 초록 |
One of the most critical issues in transparent supercapacitors (TSCs) is to control the trade-off between optical transmittance and areal capacitance. Herein, we introduce a TSC with high areal capacitance and optical transparency by minimizing the charge transfer resistance between pseudocapacitive nanoparticles (NPs) using molecular linker- and conductive/transparent NP-mediated layer-by-layer (LbL) assembly. For this study, bulky ligand-stabilized manganese oxide (MnO) and indium tin oxide (ITO) NP multilayers are LbL-assembled through a ligand exchange reaction between bulky ligands and small multidentate linkers (tricarballylic acid, TC). The introduced small linker decreases the separation distance between NPs, reducing the contact resistance of electrodes. Moreover, the periodic insertion of ITO NPs into the MnO NP-based electrodes can reduce the charge transfer resistance without a notable loss of transmittance, which can significantly improve the areal capacitance. |
