| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2036 |
| 발표분야 |
에너지 |
| 제목 |
Deposition of aligned ZnO nanorods on HFCVD grown graphene oxide thin film for dye sensitized solar cells |
| 초록 |
The vertically aligned ZnO NRs are grown on HFCVD deposited GO-FTO by the low temperature hydrothermal method and applied as photoanode for the fabrication of efficient DSSCs. Highly uniform ZnO NRs on GO deposited FTO exhibits the average length of ~2-4 μm and diameter of ~200-300 nm. The grown vertically aligned ZnO NRs possess a typical wurtzite hexagonal crystal structure. By the structural, surface and optical studies, a partial hydrogen bonding between surface functional groups of GO and ZnO NRs confirms the role of GO layer in the formation of aligned ZnO NRs. The XPS studies confirms that the grown ZnO NRs are significantly attached on the GO layer via the bonding between GO and ZnO. DSSC fabricated with GO-ZnO NRs thin film photoanode attains a solar-to-electricity conversion efficiency of ~2.5% with JSC of ~6.56 mAcm−2, VOC of ~0.71 V and FF of ~0.54. The presence of GO on FTO substrate substantially increases the surface area of GO-ZnO photoanode, which leads to high dye loading as well as high light harvesting efficiency and thus, results to the increased photocurrent density and the performance of DSSCs. |
| 저자 |
송민우, Sadia Ameen, 서형기, 모흐드 나짐, 신형식
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| 소속 |
전북대 |
| 키워드 |
DSSC; ZnO; Graphene Oxide
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| E-Mail |
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| 원문파일 |
초록 보기 |
