152
H. Ohkita
22. Shuttle, C.G., O’Regan, B., Ballantyne, A.M., Nelson, J., Bradley, D.D.C., de Mello, J.,
Durrant, J.R.: Experimental determination of the rate law for charge carrier decay in a
polythiophene:fullerene solar cell. Appl. Phys. Lett. 92, 093311 (2008)
23. Maurano, A., Shuttle, C.G., Hamilton, R., Ballantyne, A.M., Nelson, J., Zhang, W.,
Heeney, M., Durrant, J.R.: Transient optoelectronics analysis of charge carrier losses in a
selenophene/fullerene blend solar cell. J. Phys. Chem. C 115, 5947–5957 (2011)
24. Credgington, D., Durrant, J.R.: Insights from transient optoelectronic analyses on the opencircuit voltage of organic solar cells. J. Phys. Chem. Lett. 3, 1465–1478 (2012)
25. Kirchartz, T., Nelson, J.: Meaning of reaction orders in polymer: fullerene solar cells. Phys.
Rev. B 86, 165201 (2012)
26. Guo, J., Ohkita, H., Benten, H., Ito, S.: Near-IR femtosecond transient absorption spectroscopy of ultrafast polarons and triplet formation in polythiophene films with different
regioregularities. J. Am. Chem. Soc. 131, 16860–16880 (2009)
27. Guo, J., Ohkita, H., Benten, H., Ito, S.: Charge generation and recombination dynamics in
poly(3-hexylthiophene)/fullerene blend films with different regioregularites and morphologies.
J. Am. Chem. Soc. 132, 6154–6164 (2010)
28. Ohkita, H., Kosaka, J., Guo, J., Benten, H., Ito, S.: Charge generation dynamics in
polymer/polymer solar cells studied by transient absorption spectroscopy. J. Photon. Energy 1,
011118 (2011)
29. Yamamoto, S., Ohkita, H., Benten, H., Ito, S.: Role of interfacial charge transfer state in charge
generation and recombination in low-bandgap polymer solar cells. J. Phys. Chem. C 116,
14804–14810 (2012)
30. Yamamoto, S., Ohkita, H., Benten, H., Ito, S., Yamamoto, S., Kitazawa, D., Tsukamoto, J.:
Efficient charge generation and collection in amorphous polymer-based solar cells. J. Phys.
Chem. C 117, 10277–10284 (2013)
31. Ide, M., Koizumi, Y., Saeki, A., Izumiya, Y., Ohkita, H., Ito, S., Seki, S.: Near-infrared absorbing
thienoisoindigo-based copolymers for organic photovoltaics. J. Phys. Chem. C 117, 26859–
26870 (2013)
32. Ie, Y., Karakawa, M., Jinnai, S., Yoshida, H., Saeki, A., Seki, S., Yamamoto, S., Ohkita, H.,
Aso, Y.: Electron-donor function of methanofullerenes in donor–acceptor bulk heterojunction
systems. Chem. Commun. 50, 4123–4125 (2014)
33. Yamamoto, S., Yasuda, H., Ohkita, H., Benten, H., Ito, S., Miyanishi, S., Tajima, K., Hashimoto,
K.: Charge generation and recombination in fullerene-attached poly(3-hexylthiophene)-based
diblock copolymer films. J. Phys. Chem. C 118, 10584–10589 (2014)
34. Tamai, Y., Tsuda, K., Ohkita, H., Benten, H., Ito, S.: Charge-carrier generation in organic solar
cells using crystalline donor polymers. Phys. Chem. Chem. Phys. 16, 20338–20346 (2014)
35. Mori, D., Benten, H., Ohkita, H., Ito, S.: Morphology-limited free carrier generation in
donor/acceptor polymer blend solar cells composed of poly(3-hexylthiophene) and fluorenebased copolymer. Adv. Energy Mater. 5, 1500304 (2015)
36. Kawashima, K., Tamai, Y., Ohkita, H., Osaka, I., Takimiya, K.: High-efficiency polymer solar
cells with small photon energy loss. Nat. Commun. 6, 10085 (2015)
37. Tamai, Y., Ohkita, H., Namatame, M., Marumoto, K., Shimomura, S., Yamanari, T., Ito, S.:
Light-induced degradation mechanism in poly(3-hexylthiophene)/fullerene blend solar cells.
Adv. Energy Mater. 6, 1600171 (2016)
38. Kawashima, K., Fukuhara, T., Suda, Y., Suzuki, Y., Koganezawa, T., Yoshida, H., Ohkita, H.,
Osaka, I., Takimiya, K.: Implication of fluorine atom on electronic properties, ordering structures, and photovoltaic performance in naphthobisthiadiazole-based semiconducting polymers.
J. Am. Chem. Soc. 138, 10265–10275 (2016)
39. Gallaher, J.K., Prasad, S.K.K., Uddin, M.A., Kim, T., Kim, J.Y., Woo, H.Y., Hodgkiss, J.M.:
Spectroscopically tracking charge separation in polymer: fullerene blends with a three-phase
morphology. Energy Environ. Sci. 8, 2713–2724 (2015)
40. Dennler, G., Scharber, M.C., Brabec, C.J.: Polymer-fullerene bulk-heterojunction solar cells.
Adv. Mater. 21, 1323–1338 (2009)
H. Ohkita
22. Shuttle, C.G., O’Regan, B., Ballantyne, A.M., Nelson, J., Bradley, D.D.C., de Mello, J.,
Durrant, J.R.: Experimental determination of the rate law for charge carrier decay in a
polythiophene:fullerene solar cell. Appl. Phys. Lett. 92, 093311 (2008)
23. Maurano, A., Shuttle, C.G., Hamilton, R., Ballantyne, A.M., Nelson, J., Zhang, W.,
Heeney, M., Durrant, J.R.: Transient optoelectronics analysis of charge carrier losses in a
selenophene/fullerene blend solar cell. J. Phys. Chem. C 115, 5947–5957 (2011)
24. Credgington, D., Durrant, J.R.: Insights from transient optoelectronic analyses on the opencircuit voltage of organic solar cells. J. Phys. Chem. Lett. 3, 1465–1478 (2012)
25. Kirchartz, T., Nelson, J.: Meaning of reaction orders in polymer: fullerene solar cells. Phys.
Rev. B 86, 165201 (2012)
26. Guo, J., Ohkita, H., Benten, H., Ito, S.: Near-IR femtosecond transient absorption spectroscopy of ultrafast polarons and triplet formation in polythiophene films with different
regioregularities. J. Am. Chem. Soc. 131, 16860–16880 (2009)
27. Guo, J., Ohkita, H., Benten, H., Ito, S.: Charge generation and recombination dynamics in
poly(3-hexylthiophene)/fullerene blend films with different regioregularites and morphologies.
J. Am. Chem. Soc. 132, 6154–6164 (2010)
28. Ohkita, H., Kosaka, J., Guo, J., Benten, H., Ito, S.: Charge generation dynamics in
polymer/polymer solar cells studied by transient absorption spectroscopy. J. Photon. Energy 1,
011118 (2011)
29. Yamamoto, S., Ohkita, H., Benten, H., Ito, S.: Role of interfacial charge transfer state in charge
generation and recombination in low-bandgap polymer solar cells. J. Phys. Chem. C 116,
14804–14810 (2012)
30. Yamamoto, S., Ohkita, H., Benten, H., Ito, S., Yamamoto, S., Kitazawa, D., Tsukamoto, J.:
Efficient charge generation and collection in amorphous polymer-based solar cells. J. Phys.
Chem. C 117, 10277–10284 (2013)
31. Ide, M., Koizumi, Y., Saeki, A., Izumiya, Y., Ohkita, H., Ito, S., Seki, S.: Near-infrared absorbing
thienoisoindigo-based copolymers for organic photovoltaics. J. Phys. Chem. C 117, 26859–
26870 (2013)
32. Ie, Y., Karakawa, M., Jinnai, S., Yoshida, H., Saeki, A., Seki, S., Yamamoto, S., Ohkita, H.,
Aso, Y.: Electron-donor function of methanofullerenes in donor–acceptor bulk heterojunction
systems. Chem. Commun. 50, 4123–4125 (2014)
33. Yamamoto, S., Yasuda, H., Ohkita, H., Benten, H., Ito, S., Miyanishi, S., Tajima, K., Hashimoto,
K.: Charge generation and recombination in fullerene-attached poly(3-hexylthiophene)-based
diblock copolymer films. J. Phys. Chem. C 118, 10584–10589 (2014)
34. Tamai, Y., Tsuda, K., Ohkita, H., Benten, H., Ito, S.: Charge-carrier generation in organic solar
cells using crystalline donor polymers. Phys. Chem. Chem. Phys. 16, 20338–20346 (2014)
35. Mori, D., Benten, H., Ohkita, H., Ito, S.: Morphology-limited free carrier generation in
donor/acceptor polymer blend solar cells composed of poly(3-hexylthiophene) and fluorenebased copolymer. Adv. Energy Mater. 5, 1500304 (2015)
36. Kawashima, K., Tamai, Y., Ohkita, H., Osaka, I., Takimiya, K.: High-efficiency polymer solar
cells with small photon energy loss. Nat. Commun. 6, 10085 (2015)
37. Tamai, Y., Ohkita, H., Namatame, M., Marumoto, K., Shimomura, S., Yamanari, T., Ito, S.:
Light-induced degradation mechanism in poly(3-hexylthiophene)/fullerene blend solar cells.
Adv. Energy Mater. 6, 1600171 (2016)
38. Kawashima, K., Fukuhara, T., Suda, Y., Suzuki, Y., Koganezawa, T., Yoshida, H., Ohkita, H.,
Osaka, I., Takimiya, K.: Implication of fluorine atom on electronic properties, ordering structures, and photovoltaic performance in naphthobisthiadiazole-based semiconducting polymers.
J. Am. Chem. Soc. 138, 10265–10275 (2016)
39. Gallaher, J.K., Prasad, S.K.K., Uddin, M.A., Kim, T., Kim, J.Y., Woo, H.Y., Hodgkiss, J.M.:
Spectroscopically tracking charge separation in polymer: fullerene blends with a three-phase
morphology. Energy Environ. Sci. 8, 2713–2724 (2015)
40. Dennler, G., Scharber, M.C., Brabec, C.J.: Polymer-fullerene bulk-heterojunction solar cells.
Adv. Mater. 21, 1323–1338 (2009)