| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
20권 2호 |
| 발표분야 |
디스플레이_포스터 |
| 제목 |
Reduced graphene oxide (rGO) grafted ternary metal oxide nanofibers scaffolds for efficient perovskite solar cells |
| 초록 |
In the present investigation, reduced graphene oxide (rGO) grafted highly porous zinc stannate (Zn2SnO4) scaffold nanofibers has been synthesized by single step electrospinning technique and successfully used as an electron transporting layer for perovskite solar cells (PSCs). The role of rGO grafting and electron transfer mechanisms are investigated with complementary characterizations, including solid state impedance spectroscopy (ssIS), photoluminescence (PL) and time-resolved photoluminescence (TRPL) decay measurements. The optimized conditions using formamidinium lead halide (FAPbI3)1-x (MAPbBr3)x (x=0.15) perovskite based devices shows 17.60 % power conversion efficiency (PCE) (JSC=22.50mAcm-2, VOC=1.029, FF=0.76) for FTO/Bl-ZSO/rGO-ZSO0.7-(FAPbI3)0.85 (MAPbBr3)0.15/PTAA/Au device configuration. This improvement is achieved due to high conductivity of rGO and high porosity of Zn2SnO4 nanofibers which make them promising electron transporting layer (ETL) for PSC. |
| 저자 |
Sawanta S. Mali, 김현훈, 홍창국
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| 소속 |
Chonnam National Univ. |
| 키워드 |
rGO grafted Zn2SnO2 ETL; perovskite solar cells; >17% efficiency.
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| E-Mail |
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