| 초록 |
The properties of interfaces between organic and inorganic materials in heterojunctions are relevant to a variety of electronic applications. The performances of such devices strongly depend on the kinetics of the charge transfer reactions and the thermodynamic properties (e.g., energetic difference at the junctions) at the heterogeneous interfaces. Heterogeneous interfaces, especially in iodine-free dye-sensitized solar cells (DSCs), can be controlled by modifying the interfacial properties to improve the photovoltaic performance. Herein, I present a novel synthesis of well-defined conducting block copolymers, which are formed on the surfaces of nanocrystalline TiO2 particles. This approach permitted the selective positioning of lithium ions on the PEDOT-TB blocks only and the realization of an ideal device, thereby affording an improvement in the photovoltaic performances in iodine-free DSCs. |
