| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 가을 (11/12 ~ 11/14, 엑스코(대구)) |
| 권호 |
18권 2호 |
| 발표분야 |
정보전자소재-포스터 |
| 제목 |
A new small molecule base on dithienobenzodithiophene for use in photovoltaic devices. |
| 초록 |
We designed and synthesized a dithienobenzodithiophene (DTBDT)-based molecule with a planar molecular geometry, DTBDT-TTPD, for the fabrication of solution-processable organic solar cells (OSCs). DTBDT-TTPD exhibited both a low optical band gap of 1.88 eV and a low-lying highest occupied molecular orbital (HOMO) energy level of –5.61 eV, indicating that DTBDT-TTPD is a promising electron donor for use in OSCs. OSCs prepared with DTBDT-TTPD as the electron donor and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) as the electron acceptor were fabricated. An optimized power conversion efficiency of 4.98% with a high short circuit current of 10.6 mA/cm2 was achieved after finely tuning the morphology through an annealing step. These results indicate that DTBDT-TTPD is an effective compound for producing very promising characteristics in small molecule solar cell devices |
| 저자 |
천예림1, 마재열1, 윤희준1, 김란1, 백장열1, 김유진2, 안태규2, 박찬언2, 김윤희1
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| 소속 |
1경상대, 2포항공과대 |
| 키워드 |
OPV |
| E-Mail |
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