Abstract
In this study, the highly efficient organic indoline DN350 based dye sensitized solar cells (DSSCs) have been fabricated using reduced graphene oxide (rGO)-TiO2 composite nanofibers (NFs) and tested its photovoltaic properties. The influence of the rGO on the morphology, structural properties of the TiO2 NFs have been characterized by various techniques. Our photovoltaic results revealed that the modified rGO-TiO2 composite NFs exhibited higher power conversion efficiency (PCE) in comparison with the pristine-TiO2 NFs. The electrochemical analysis indicated that the GO content provides more active sites results in higher dye adsorption which consequently improves the DSSCs performance. Our optimized sample containing 4 mg-rGO-TiO2 NFs exhibited the best performance with 4.43% PCE, which is higher than the pristine-TiO2 NFs (3.83%). Overall, this study presents the rGO-TiO2 composite NFs as a novel strategy for enhancing the efficiency of the organic indoline DN350 based DSSCs.
| Original language | English |
|---|---|
| Article number | 116146 |
| Number of pages | 9 |
| Journal | Synthetic Metals |
| Volume | 256 |
| Early online date | 20 Aug 2019 |
| DOIs | |
| Publication status | Published - 1 Oct 2019 |
Funding
This work was supported by Priority Research Centre Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology ( NRF-2018R1A6A1A03024334 ). This work was also supported by Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT, and Future Planning ( 2016H1D3 A1909289 ) for an outstanding overseas young researcher.
Keywords
- DN350
- dye based DSSC
- indoline
- reduced graphene oxide
- TiO nanofibers