Abstract
The photovoltaic (PV) effect of a bilayer anatase TiO2/BiFeO3 (BFO) film has been studied. The 20-nm ultrathin BFO layers were deposited on the fluorine-doped tin oxide (FTO) glass substrates by the chemical solution deposition method. An anatase TiO2 layer is deposited subsequently on the BFO surface via a screen-printing technique. It is found that the FTO/TiO2/Au cell exhibits negligible PV effect under solar exposure, while the one after introducing an ultrathin BFO film between TiO2 and FTO leads to a considerable PV effect with an open-circuit voltage of −0.58 V and a photocurrent density of 18.27 µA/cm2. The FTO/BiVO4 (BVO)/TiO2/Au cell was constructed to investigate the underlying mechanism for the observed effect. A negligible PV effect of the FTO/BVO/TiO2/Au cell indicates that the PV effect of the FTO/BFO/TiO2/Au cell arises mainly from a built-in electric field in the BFO film induced by the self-polarization. Our work opens up a new path to utilize TiO2 and may influence the future design of solar cells.
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References
Z. Adriana, Recent Pat Eng 2, 157–164 (2008)
B.O’. Regan, M. Grätzel, Nature 353, 737–740 (1998)
M.Y. Song, D.K. Kim, K.J. Ihn, S.M. Jo, D.Y. Kim, Nanotechnogy 15, 1861–1865 (2004)
M. Grätzel, Nature 414, 338–344 (2001)
B. Li, L.D. Wang, B.N. Kang, P. Wang, Y. Qiu, Sol. Energy Mater. Sol. Cells 90, 549–573 (2006)
S.Y. Yang, J. Seidel, S.J. Byrnes, P. Shafer, C.H. Yang, M.D. Rossell, P. Yu, Y.H. Chu, J.F. Scott, J.W. Ager, L.W. Martin, R. Ramesh, Nat. Nanotechnol. 5, 143–147 (2010)
J. Dho, Solid State Commun. 150, 2243–2247 (2010)
G.H. Zhang, H. Wu, G.B. Li, Q.Z. Huang, C.H. Yang, F.Q. Huang, F.H. Liao, J.H. Lin, Sci. Rep. 3, 1265–1272 (2013)
P. Krogstrup, H.I. Jørgensen, M. Heiss, O. Demichel, J.V. Holm, M. Aagesen, J. Nygard, A.F. Morral, Nat. Photonics 7, 306–310 (2013)
Y.B. Yuan, T.J. Reece, P. Sharma, S. Poddar, S. Ducharme, A. Gruverman, Y. Yang, J.S. Huang, Nature 10, 296–302 (2011)
W. Dong, Y.P. Guo, B. Guo, H. Li, H.Z. Liu, T.W. Joel, ACS App. Mater. Interfaces 5, 6925–6929 (2013)
R.X. Peng, F. Yang, X.H. Ouyang, Y. Liu, Y.S. Kim, Z.Y. Ge, Appl. Phys. A Mater. Sci. Process. 114, 429–434 (2014)
Y.P. Guo, K. Suzuki, K. Nishizawa, T. Miki, K. Kato, J. Cryst. Growth 284, 190–196 (2005)
W. Dong, Y.P. Guo, B. Guo, H.Y. Liu, H. Li, H.Z. Liu, Mater. Lett. 88, 140–142 (2012)
S.R. Basu, L.W. Martin, Y.H. Chu, M. Jajek, R. Ramesh, R.C. Rai, X. Xu, J.L. Musfeldt, Appl. Phys. Lett. 92, 091905-1–091905-3 (2008)
C.H. Yang, J. Seidel, S.Y. Kim, P.B. Rossen, P. Yu, M. Gajek, Y.H. Chu, L.W. Martin, M.B. Holcomb, Q. He, P. Maksymovych, N. Balke, S.V. Kalinin, A.P. Baddorf, S.R. Basu, M.L. Scullin, R. Ramesh, Nat. Mater. 8, 485–493 (2009)
S.J. Clark, J. Robertson, Appl. Phys. Lett. 94, 022902-1–022902-3 (2009)
S.Y. Li, J. Morasch, A. Klein, Phys. Rev. B 88, 045428-1–04542812 (2013)
R. Schafranek, J. Schaffner, A. Klein, J. Eur. Ceram. Soc. 30, 187–192 (2010)
M. Uda, A. Nakamura, T. Yamamoto, Y. Fujimoto, J. Electron Spectrosc. Relat. Phenom. 88–91, 643–648 (1998)
S.J. Hong, S. Lee, J.S. Jang, J.S. Lee, Energy Environ. Sci. 5, 1781–1787 (2011)
Y.S. Park, K.J. McDonald, K.S. Choi, Chem. Soc. Rev. 42, 2321–2337 (2013)
A. Zhu, Q.D. Zhao, X.Y. Li, Y. Shi, ACS Appl. Mater. Interfaces 6, 671–679 (2014)
Y.P. Guo, B. Guo, W. Dong, H. Li, H.Z. Liu, Nanotechnology 24, 275201-1–275201-8 (2013)
M.D. Glinchuk, E.A. Eliseev, V.A. Stephanovich, Phys. B 322, 356–370 (2002)
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This work is supported by the National Nature Science Foundation of China (NO.11074165).
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Wu, F., Song, L., Guo, Y. et al. Photovoltaic effect of TiO2 thick films with an ultrathin BiFeO3 as buffer layer. Appl. Phys. A 117, 1301–1306 (2014). https://doi.org/10.1007/s00339-014-8536-7
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DOI: https://doi.org/10.1007/s00339-014-8536-7