| 초록 |
Organic solar cells (OSCs) have been spotlighted as an excellent renewable energy source due to its light-weight, flexibility, low-cost and solution-processability. Research worldwide about donor and acceptor materials for active layer have led to OSCs’ high power conversion efficiencies (PCEs) up to 15.6%, and even 17.3% for a tandem structure in laboratory-scale (for a single cell). However, the PCEs falls down drastically as going through module manufacturing process, and this can be a big obstacle for commercialization. To solve this problem, several issues such as solubility, film uniformity, energy-level alignment should be considered and continuous effort is needed. In this study, new polythiophene derivative based polymer was synthesized and introduced as a Hole transport layer (HTL) in inverted OSCs. Its alcohol solubility, thickness independence and amphiphilic nature can successfully minimize the energy loss in a large-area fabrication. |
