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- In relation to this article, we declare that there is no conflict of interest.
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Received April 30, 2013
Accepted October 1, 2013
- This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
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The effects of electrolyte additives on the cell performances of CdS/CdSe quantum dot sensitized solar cells
Department Electrical Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Korea
heeje@pusan.ac.kr
Korean Journal of Chemical Engineering, November 2013, 30(11), 2088-2092(5), 10.1007/s11814-013-0195-4
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Abstract
The electrolyte for QDSSCs is normally a polysulfide, S2-/Sx2-, redox couple. This couple plays an important role for the regeneration of quantum dots. This study examined the effects of the electrolyte for CdS/CdSe QDSSCs. Electrolytes consisting of 1M Na2S, 2M S in a methanol and water-mixed solution at a 7 : 3 ratio with or without additives such as KCl, NaOH, KOH and NaCl were used for QDSSC. The electrolyte with NaOH showed the highest conversion efficiency, 3.18%. The reasons for the improved photovoltaic characteristics were analyzed using a range of techniques.
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Chou CY, Lee CP, Vittal R, Ho KC, J. Power Sources, 196(15), 6595 (2011)
Robel I, Kuno M, Kamat PV, J. Am. Chem. Soc., 129(14), 4136 (2007)
Yang Y, Rodriguez-Cordoba W, Xiang X, Lian T, Nano Lett., 12, 303 (2012)
Canovas E, Moll P, Jensen SA, Gao Y, Houtepen AJ, Siebbeles LDA, Kinge S, Bonn M, Nano Lett., 11, 5234 (2011)
Zhu G, Pan L, Xu T, Sun Z, Appl. Mater. Interfaces., 3, 3146 (2011)
Lee YL, Lo YS, Adv. Funct. Mater., 19(4), 604 (2009)
Park NG, Kim K, Phys., Stat. Sol. (a)., 205, 1895 (2008)
Wang C, Jiang Z, Wei L, Chen Y, Jiao J, Eastman M, Liu H, Nano Energy., 1, 440 (2012)
Yin X, Que W, Fei D, Xie H, He Z, Electrochim. Acta., 99, 204 (2013)
Jang KI, Hong E, Kim JH, Korean J. Chem. Eng., 30(3), 620 (2013)
Zhang Q, Zhang Y, Huang S, Huang X, Luo Y, Meng Q, Li D, Electrochem. Commun., 12, 327 (2010)
Radich JG, Dwyer R, Kamat PV, J. Phys. Chem. Lett., 2, 2453 (2011)
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Seo H, Wang Y, Uchida G, Kamataki K, Itagaki N, Koga K, Shiratani M, Electrochim. Acta., 95, 43 (2013)
Lee YL, Chang CH, J. Power Sources, 185(1), 584 (2008)
Koide N, Islam A, Chiba Y, Han L, J. Photochem. Photobiol. A: Chem., 182, 296 (2006)
Rhee SW, Kwon W, Korean J. Chem. Eng., 28(7), 1481 (2011)
Chiba Y, Islam A, Watanabe Y, Komiya R, Koide N, Han L, Japanese J. Appl. Phys., 45, 638 (2006)
Lee W, Lee J, Lee H, Yi W, Han SH, Appl. Phys. Lett., 91, 043515 (2007)
Li N, Lassiter BE, Lunt RR, Wei G, Forrest SR, Appl. Phys.Lett., 94, 023307 (2009)
Liu Z, Miyauchi M, Uemura T, Cui Y, Hara K, Hara Z, Zhao Z, Sunahara K, Furube A, Appl. Phys. Lett., 96, 233107 (2010)