Role of MoO3 as an anode buffer layer in organic photovoltaic cells

Na-na WANG; Jun-sheng YU; Qi WANG; Juan SHAN; Ya-dong JIANG

[1] Kim J Y, Lee K, Coates N E, et al. Efficient tandem polymer solar cells fabricated by all-solution processing ［J］. Science, 2007, 317: 222-225.

[2] Yang Y, Wudl F. Organic electronics: from materials to devices ［J］. Adv. Mater., 2009, 21: 1401-1403.

[3] Kippelen B, Bredas J L. Organic photovoltaics ［J］. Energy and Environ. Sci., 2009, 2: 251-261.

[4] Huang J, Yu J S, Guan Z Q, et al. Improvement in open circuit voltage of organic solar cells by inserting a thin phosphorescent iridium complex layer ［J］. Appl. Phys. Lett., 2010, 97: 143301.

[5] Tang C W. Two-layer organic photovoltaic cell ［J］. Appl. Phys. Lett., 1986, 48: 183-185.

[6] Chen H Y, Hou J H, Zhang S Q, et al. Polymer solar cells with enhanced open-circuit voltage and efficiency ［J］. Nature Photon., 2009, 3: 649-653.

[7] Liang Y Y, Xu Z, Xia J B, et al. For the bright future-bulk heterojunction polymer solar cells with power conversion efficiency of 7.4% ［J］. Adv. Mater., 2010, 22: E135-E138.

[8] Heliatek and IAPP achieve production-relevant efficiency record for organic photovoltaic cells ［OL］. http://www.heliatek.com/news-19.

[9] Sista S, Hong Z, Park M H, et al. High-efficiency polymer tandem solar cells with three-terminal structure ［J］. Adv. Mater., 2009, 21: E1-E4.

[10] Wang N N, Yu J S, Zang Y, et al. Effect of buffer layers on the performance of organic photovoltaic cells based on copper phthalocyanine and C60 ［J］. Sol. Energy Mater. and Sol. Cells, 2010, 94: 263-266.

[11] Krebs F C, Gevorgyan S A, Alstrup J. A roll-to-roll process to flexible polymer solar cells: model studies, manufacture and operational stability studies ［J］. J. Mater. Chem., 2009, 19: 5442-5451.

[12] Feng Z H, Hou Y B, Lei D S. The influence of electrode buffer layers on the performance of polymer photovoltaic devices ［J］. Renew. Energ., 2010, 35: 1175-1178.

[13] Godoy A, Cattin L, Toumi L, et al. Effects of the buffer layer inserted between the transparent conductive oxide anode and the organic electron donor ［J］. Sol. Energy Mater. and Sol. Cells, 2010, 94: 648-654.

[14] Shrotriya V, Li G, Yao Y, et al. Transition metal oxides as the buffer layer for polymer photovoltaic cells ［J］. Appl. Phys. Lett., 2006, 88: 073508.

[15] Zhao D W, Liu P, Sun X W, et al. An inverted organic solar cell with an ultrathin Ca electron-transporting layer and MoO3 hole-transporting layer ［J］. Appl. Phys. Lett., 2009, 95: 153304.

[16] Kinoshita Y, Takenaka R, Murata H. Independent control of open-circuit voltage of organic solar cells by changing film thickness of MoO3 buffer layer ［J］. Appl. Phys. Lett., 2008, 92: 243309.

[17] Li N, Lassiter B E, Lunt R R, et al. Open circuit voltage enhancement due to reduced dark current in small molecule photovoltaic cells ［J］. Appl. Phys. Lett., 2009, 94: 023307.

[18] Yoo S, Domercq B, Kippelen B. Intensity-dependent equivalent circuit parameters of organic solar cells based on pentacene and C60 ［J］. J. Appl. Phys., 2005, 97: 103706.

[19] Servaites J D, Yeganeh S, Marks T J, et al. Efficiency enhancement in organic photovoltaic cells: consequences of optimizing series resistance ［J］. Adv. Funct. Mater., 2010, 20: 97-104.

[20] Wang N N, Yu J S, Lin H, et al. Organic photovoltaic cells with improved performance using bathophenanthroline as a buffer layer ［J］. Chin. J. Chem. Phys., 2010, 23: 84-88.

[21] Huang J, Yu J S, Lin H, et al. Detailed analysis of bathocuproine layer for organic solar cells based on copper phthalocyanine and C60 ［J］. J. Appl. Phys., 2009, 105: 073105.