Paper
RSC Advances
6a showed the highest PCE of 5.7% with a double-layer TiO2 20 M. Matsui, M. Kotani, Y. Kubota, K. Funabiki, J. Jin,
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Although the structures of the pyrazoline photosensitizers
T. Yoshida, S. Higashijima and H. Miura, Dyes Pigm., 2011,
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were not fully optimized for DSSCs in this work, promising 21 M. Amir, H. Kumar and S. a. Khan, Bioorg. Med. Chem. Lett.,
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we will continue our research to develop high-performance 22 E. Bansal, V. K. Srivastava and A. Kumar, Eur. J. Med. Chem.,
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2001, 36, 81–92.
23 I. G. Rathish, K. Javed, S. Ahmad, S. Bano, M. S. Alam,
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Acknowledgements
We thank H. Kodama for helpful assistance. Financial support 24 K. L. Stirrett, J. a. Ferreras, V. Jayaprakash, B. N. Sinha,
from AIST and Wakayama prefecture is gratefully acknowledged.
T. Ren and L. E. N. Quadri, Bioorg. Med. Chem. Lett., 2008,
18, 2662–2668.
25 O. I. El-Sabbagh, M. M. Baraka, S. M. Ibrahim,
C. Pannecouque, G. Andrei, R. Snoeck, J. Balzarini and
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