Abstract
Efficient organic hybrid planar–mixed heterojunction photovoltaic cells based on copper phthalocyanine (CuPc) and fullerene (C60) were fabricated. This structure, in addition to the high efficiency in exciton diffusion of a mixed heterojunction, has low resistance in charge transporting of a planar heterojunction. The effects of different CuPc:C60 mixing ratios in two stages and by varying the CuPc and C60 thicknesses, respectively, were investigated. Also, we illustrate the charge transport mechanisms and specify the charge injection models for the cells. For the optimized cell, trap-charge-limited current (TCLC) model was dominant. MoO3 is one of the common materials as anodic buffer layer which is used for modifying the ITO electrode and improving the charge extraction. According to the AFM results, after depositing MoO3 layer on ITO, the surface root mean square (RMS) roughness decreases from 8.31 to 4.14 nm. Optimal thickness for both CuPc and C60 layers was obtained 20 nm. Finally, the greatest value in power conversion efficiency was achieved 3.81% using the 1:1 CuPc:C60 mixing ratio. Moreover, short-circuit current density (Jsc), fill factor (FF), and open-circuit voltage (Voc) for this optimized cell were found 10.21 (mA/cm2), 0.64 (V), and 0.58, respectively.
Similar content being viewed by others
References
L. Reshma, K. Santhakumar, Org. Electron. 47, 43 (2017)
G. Chen, C. Si, P. Zhang, B. Wei, J. Zhang, Z. Hong, H. Sasabe, J. Kido, Org. Electron. 51, 69 (2017)
X. Guo, L. Xiao, W. Tang, B. Liu, R. Cui, Y. Zou, J. Mater. Sci. 48, 5839 (2013)
R. Scaria, F. Ali, S. Dhawan, S. Chand, J. Mater. Sci. 50, 562 (2015)
D. Ompong, M. Narayan, J. Singh, J. Mater. Sci. Mater. Electron. 28, 7106 (2017)
X. Zhu, C. Gao, M. Xu, W. Gu, X. Shi, Y. Lei, Z. Wang, L. Liao, Synth. Methods 162, 2215 (2012)
N.S. Sabri, C.C. Yap, M. Yahaya, M.M. Salleh, J. Mater. Sci. Mater. Electron. 24, 2188 (2013)
P. Lopez-Varo, J.A. Jimenez-Tejada, O. Marinov, J. Carceller, C. Chen, M. Deen, Org. Electron. 48, 95 (2017)
F. Chang, H. Li, B. Zheng, K. Qian, Q. Lei, G. Han, Y. Song, P. Shao, J. Mater. Sci. Mater. Electron. (2017). https://doi.org/10.1007/s10854-017-8041-9
S. Sun, Z. Fan, Y. Wang, J. Haliburton, J. Mater. Sci. 40, 1443 (2005)
J. Sun, Q. Zheng, S. Cheng, H. Zhou, Y. Lai, J. Yu, J. Mater. Sci. Mater. Electron. 27, 3249 (2016)
T. Adhikari, J.M. Nunzi, O. Lebel, Org. Electron. 49, 392 (2017)
J. Sakai, T. Taima, K. Saito, Org. Electron. 9, 590 (2008)
S. Han, W.S. Shin, M. Seo, D. Gupta, S.J. Moon, S. Yoo, Org. Electron. 10, 797 (2009)
F. Qiao, A. Liu, Y. Zhou, Y. Xiao, P.O. Yang, J. Mater. Sci. 44, 1286 (2009)
P.W. Blom, V.D. Mihailetchi, L.J.A. Koster, D.E. Markov, Adv. Mater. 19, 1566 (2007)
S. Yu, A. Opitz, S. Grob, R. Resel, M. Oehzelt, W. Brütting, I. Salzmann, N. Koch, Org. Electron. 15, 2217 (2014)
M. Kikuchi, K. Takagi, H. Naito, M. Hiramoto, Org. Electron. 41, 121 (2017)
S. Kumar, D. Panigrahi, A. Dhar, Org. Electron. 38, 7 (2016)
B.P. Rand, J. Xue, S. Uchida, S.R. Forrest, J. Appl. Phys. 98, 124902 (2005)
M. Hssein, L. Cattin, M. Morsli, M. Addou, J. Bernède, J. Mater. Sci. Mater. Electron. 28, 3684 (2017)
J. Xue, B.P. Rand, S. Uchida, S.R. Forrest, J. Appl. Phys. 98, 124903 (2005)
S. Ghasemi, M.G. Varnamkhasti, E. Shahriari, Opt. Quantum. Electron. 49, 62 (2017)
M.D. Irwin, D.B. Buchholz, A.W. Hains, R.P. Chang, T.J. Marks, Proc. Natl. Acad. Sci. USA 105, 2787 (2008)
L.G. Gerling, S. Mahato, C. Voz, R. Alcubilla, J. Puigdollers, Appl. Sci. 5, 705 (2015)
X. Xi, Q. Meng, F. Li, Y. Ding, J. Ji, Z. Shi, G. Li, Sol. Energy Mater. Sol. C 94, 628 (2010)
M.Y. Ameen, S. Pradhan, M.R. Suresh, V. Reddy, Opt. Mater. 39, 139 (2015)
D.W. Chou, C.J. Huang, T.C. Wang, W.R. Chen, T.H. Meen, J. Non-Cryst. Solids 356, 2161 (2010)
G. Sarasqueta, F. So, Sol. Energy Mater. Sol. C 93, 1456 (2009)
V. Kazukauskas, A. Arlauskas, M. Pranaitis, R. Lessmann, M. Riede, K. Leo, Opt. Mater. 32, 1680 (2010)
M.M. Bidgoli, M. Mohsennia, F.A. Boroumand, A.M. Nia, Semicond. Sci. Tech. 30, 065016 (2015)
F. Schauer, Sol. Energy Mater. Sol. C 87, 250 (2005)
S. Nespurek, O. Zmeskal, J. Sworakowski, Thin Solid Films. 516, 8962 (2008)
K.C. Aw, P.C. Ooi, K.A. Razak, W. Gao, J. Mater. Sci. Mater. Electron. 24, 3125 (2013)
M. Bajpai, R. Srivastava, R. Dhar, R. Tiwari, Mater. Sci. Eng B 212, 70 (2016)
G.G. Raju, Dielectrics in Electric Fields (CRC Press, New York, 2003)
M.G. Varnamkhasti, H.R. Fallah, M. Mostajaboddavati, R. Ghasemi, A. Hassanzadeh, Sol. Energy Mater. Sol. C 98, 384 (2012)
Y. Li, H. Yu, X. Huang, Z. Wu, M. Chen, RSC. Adv. 7, 7900 (2017)
F. So, Organic Electronics: Materials, Processing, Devices and Applications (CRC Press, Boston, 2009)
Acknowledgements
The authors would like to thank the Nanotechnology Research Center of Shahrekord University for their support.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ghasemi, S., Ghasemi, M. The effects of mixture ratios of CuPc:C60 in nanostructured organic hybrid planar–mixed heterojunction photovoltaic cells. J Mater Sci: Mater Electron 29, 11124–11131 (2018). https://doi.org/10.1007/s10854-018-9196-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10854-018-9196-8