| 학회 | 한국공업화학회 |
| 학술대회 | 2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 | 19권 1호 |
| 발표분야 | 에너지저장변환_포스터 |
| 제목 | Synthesis and Photovoltaic Properties of Extended Quinoxaline based Copolymers and improve PCE through device treatment |
| 초록 | The conjugated polymers have gained much attention because of their unique semiconducting properties in fabricating large area, flexible, and low cost electronic devices, such as organic photovoltaics (OPVs), light emitting diodes, and thin film transistors. Research into bulk heterojunction (BHJ) OPVs has attracted much attention in both academia and industry because of their potential application in solar cells via cost-effective solution processes. The versatility and processability of the polymers offer tunable electronic, optical, and crystalline properties for optimizing the device performance. In designing materials for polymer solar cells it is well established that apart from the chemical structure, which determines the optical band gap and energy levels, the morphology of the photoactive donor−acceptor blend plays a crucial role. The blend morphology is determined by the chemical structure and by the device treatment used to cast the layers. Important device parameters are donor/acceptor ratio, solvent, co-solvent, temperature, drying time, and concentration. Benzo[1,2-b;3,4-b']dithiophene (BDT) is another well used donor unit in high performance polymers at present. Because it have many advantages which are long π conjugation length, low HOMO level and high charge carrier mobility. Quinoxaline unit is to incorporate chromospheres highly absorbing in visible and near-infrared regions by extend fused-phenyl rings. Alkoxy-chains in quinoxaline derivatives may produce high solubility polymers along with the absorption and coplanarity properties of the dibenzo-phenazine derivates. In this study, we synthesized extended quinoxaline based copolymer and investigated their PSCs property. |
| 저자 | 이태호, 전성재, 남승준, 문두경 |
| 소속 | 건국대 |
| 키워드 | PSCs; Extended Quinoxaline; Device treatment; Photovoltaic; Bulk-heterojunction |
