Optical Property and Photoelectrical Performance of a Low-bandgap Conducting Polymer Incorporated with Quantum Dots Used for Organic Solar Cells

Tran Thi Thao, Vu Thi Hai, Nguyen Nang Dinh, Le Dinh Trong


By using spin-coating technique, a low bandgap conjugated polymer, poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopen-ta[2,1-b;3,4-b′]dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (PCPDTBT)  and its composite thin films have been prepared. The optical absorption and photoconductive properties with over a wide spectral range, from 350 to 950  nm, were characterized. The obtained results showed that PCPDTBT:10 wt% CdSe  composite is the most suitable for efficient light-harvesting in polymer-based photovoltaic cells. The photoelectrical conversion efficiency (PCE) of the device with  a multilayer structure of ITO/PEDOT/ PCPDTBT:CdSe /LiF/Al  reached a value as large as 1.34% with an open-circuit voltage (Voc) = 0.57 V, a short-circuit current density (Jsc) = 4.29 mA/cm2, and a fill factor (FF) = 0.27. This suggests a useful application in further fabrication of quantum dots/polymers based solar cells.

Full Text:



C. J. Brabec, N. S. Sariciftci, J. C. Hummenmen, Adv. Funct. Mater. 11 (2001) 15.

H. Hoppe, N. S. Sariciftci, J. Mater. Research 19/7 (2004) 1724.

M. Wright, A. Uddin, Solar Ener. Mater. Solar Cells 107 (2012) 87.

L. F. Santos R.C. Faria L. Gaffo L.M. Carvalho R.M. Faria D. Gonc¸alves, Electrochim Acta 52 (2007) 4299

S-H Yang C-C Wu C-F Lee M-H Liu, Displays 29 (2008) 214

S. Ren, L. Y. Chang, S. K. Lim, J. Zhao, M. Smith, N. Zhao, V. Bulovic, M. Bawendi, S. Gradecak, Nano Letters

(2011) 3998.

C. Soci, I.-W Hwang, D. Moses, Z. Zhu, D. Waller, R. Gaudiana, C. J. Brabec, A. J. Heeger. Adv. Funct. Mater.

(2007) 632.

Y. Zhou, M. Eck, C. Veit, B. Zimmermann, F. Rauscher, P. Niyamakom, S. Yilmaz, I. Dumsch, S. Allard, U.

Scherf, M. Kr¨uger, Sol. Energy Mat. Sol Cells 95 (2011) 1232.

K. Kawata, V. M. Burlakov, M. J. Carey, H. E. Assender, G. A. D. Briggs, A. Ruseckas, I. D. W. Samuel, Sol.

Energy Mat. Sol Cells 87 (2005) 715.

S. A. Carter, J. C. Scott, and P. J. Brock, Appl. Phys. Lett. 71/9 (1997) 1145.

S. Thomas, K. Joseph, S. K. Malhotra, K. Goda, M. S. Sreekala, Polymer Composites, Nanocomposites, John

Wiley & Sons, Apr 16, 2013 (Technology & Engineering) 450p.

R. Liu, Materials 7 (2014) 2747.

W. U. Huynh, X. G. Peng, A. P. Alivisatos, Adv. Mater. 11 (1999) 923.

S. E. Shaheen, C. J. Brabec, N. S. Sariciftci, F. Padinger, T. Fromherz, and J. C. Hummelen, Appl. Phys. Lett. 78

(2001) 841.

Tran Thi Thao, Nguyen Thi Thuy Nga, Vo-Van Truong, Nguyen Nang Dinh, Proc. ICPA-2014, Da-Nang city,

Vietnam, August 1216, 2014 (in press).

N. N. Dinh, L. H. Chi, T. T. C. Thuy, T. Q. Trung, and T. Vo-Van, J. Appl. Phys. 105 (2009) 093518 (5p).

C. J. Brabec, C. Winder, N. S. Sariciftci, J. C. Hummelen, A. Dhana-balan, P. A. van Hal, R. A. J. Janssen, Adv.

Funct. Mater. 12 (2002) 709.

S. H. Yang, T. P. Nguyen, P. Le Rendu, C. S. Hsu, Composites Part A: Appl. Sci.Manufact. 36 (2005) 509.

N. C. Greenham, X. Peng, A. P. Alivisatos, Phys. Rev. B54 (1996) 17628.

N. C. Greenham, X. Peng, A. P. Alivisatos, In Future Generation Photovoltaic Technologies: First NREL Conference;

McConnell, R., Ed.; American Institute of Physics: Melville, NY, 1997.

A. J. Nozik, Nano Lett. 10 (2010) 2735.

C.-H. M. Chuang, P. R. Brown, V. Bulovi, M. G. Bawendi, Nature Materials 13 (2014) 796.

DOI: https://doi.org/10.15625/0868-3166/25/2/6200 Display counter: Abstract : 128 views. PDF : 60 views.


  • There are currently no refbacks.

Editorial Office:

Communications in Physics

1st Floor, A16 Building, 18B Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam

Tel: (+84) 024 3791 7102 

Email: cip@vjs.ac.vn

Copyright by