Efficiency of dye-sensitized solar cells based on TiO2 nanoparticle/nanowire composites
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
TiO2 nanoparticles and nanowires were synthesized via a hydrothermal process and used to prepare composite photoanodes for dye-sensitized solar cells. The TiO2 nanoparticles had anatase and rutile phases, while the TiO2 nanowires existed in the TiO2(B), anatase, or rutile phase, depending on the post-calcination temperature. Measurement of the photovoltaic performance by a solar simulator showed that the composite photoanodes prepared from TiO2 nanoparticles and nanowires displayed superior light-to-electricity conversion efficiencies compared to those made solely of nanoparticles or of nanowires. Furthermore, all anatase-phase TiO2 nanoparticle/nanowire composites gave higher conversion efficiencies than did anatase nanoparticle/TiO2(B) nanowire composites. The highest conversion efficiency was found for the composite photoanode made of 90 wt% anatase TiO2 nanoparticles and 10 wt% anatase TiO2 nanowires.
Abstract
TiO2 nanoparticles and nanowires were synthesized via a hydrothermal process and used to prepare composite photoanodes for dye-sensitized solar cells. The TiO2 nanoparticles had anatase and rutile phases, while the TiO2 nanowires existed in the TiO2(B), anatase, or rutile phase, depending on the post-calcination temperature. Measurement of the photovoltaic performance by a solar simulator showed that the composite photoanodes prepared from TiO2 nanoparticles and nanowires displayed superior light-to-electricity conversion efficiencies compared to those made solely of nanoparticles or of nanowires. Furthermore, all anatase-phase TiO2 nanoparticle/nanowire composites gave higher conversion efficiencies than did anatase nanoparticle/TiO2(B) nanowire composites. The highest conversion efficiency was found for the composite photoanode made of 90 wt% anatase TiO2 nanoparticles and 10 wt% anatase TiO2 nanowires.
참고문헌 (16)
- B. Oregan, , Nature, 353, pp.737~740 (1991)
- M. Gratzel, , J. Sol-Gel Sci. Technol, 22, pp.7~13 (2001)
- M. Wei, , J. Mater. Chem, 16, pp.1287~1293 (2006)
- Y.J. Kim, , Adv. Mater, 21, pp.3668~3673 (2009)
- K. Zhu, , Nano Lett, 7, pp.69~74 (2007)
- D. Chen, , Adv. Mater, 21, pp.2206~2210 (2009)
- U. Bach, , Nature, 395, pp.583~585 (1998)
- J.B. Baxter, , Nanotechnol, 17, pp.S304~S312 (2006)
- Y. Tachibana, , J. Phys. Chem, 100, pp.20056~20062 (1996)
- 3J.T. Jiu, , J. Phys. Chem. B, 110, pp.2087~2092 (2006)
- M. Adachi, , J. Am. Chem. Soc, 126, pp.14943~14949 (2004)
- B. Tan, , J. Phys. Chem. B, 110, pp.15932~15938 (2006)
- K.M. Lee, , Electrochim. Acta, 54, pp.4123~4130 (2009)
- Y. Alivov, , Appl. Phys. Lett, 95, pp.63504~63506 (2009)
- P. Roy, , Electrochem. Commun, 11, pp.1001~1004 (2009)
- A.R. Armstrong, , Angew. Chem., Int. Ed, 43, pp.2286~2288 (2004)