LIU Ya-dong, SU Zi-sheng, ZHUANG Tao-jun, CHU Bei, LI Wen-lian. Significant Enhanced Performance of Organic Solar Cells with F<sub>16</sub>CuPc as The Anode Buffer Layer[J]. Chinese Journal of Luminescence, 2011,32(11): 1176-1180
LIU Ya-dong, SU Zi-sheng, ZHUANG Tao-jun, CHU Bei, LI Wen-lian. Significant Enhanced Performance of Organic Solar Cells with F<sub>16</sub>CuPc as The Anode Buffer Layer[J]. Chinese Journal of Luminescence, 2011,32(11): 1176-1180DOI:
Significant Enhanced Performance of Organic Solar Cells with F16CuPc as The Anode Buffer Layer
Significant enhanced performance of organic solar cells with F
16
CuPc as the anode buffer layer was demonstrated. On the one hand
the adopted F
16
CuPc anode buffer layer leads to the oriented growth of the CuPc molecules
resulting in the increased crystallinity and hence the hole mobility of the CuPc film. On the other hand
a dipole layer can be formed in the F
16
CuPc/CuPc interface
which can improve the hole extraction efficiency from CuPc to ITO. Owing to these tow effects
the charge carriers collection efficiency was raised
while the series resistance and the photogenerated charge carrier recombination probability were decreased. Consequently
the short-circuit current and the fill factor were increased. Meanwhile
the built-in potential of the devices was also increased by the introduction of F
16
CuPc
leading to an increased open-circuit voltage.
关键词
Keywords
references
Tang C W. Two-layer organic photovoltaic cell [J]. Appl. Phys. Lett., 1986, 48 (2):183-185.[2] Hancox I, Sullivan P, Chauhan K V, et al. The effect of a MoOx hole-extracting layer on the performance of organic photovoltaic cells based on small molecule planar heterojunctions [J]. Org. Electron., 2010, 11 (12):2019-2025.[3] Han S, Shin W S, Seo M, et al. Improving performance of organic solar cells using amorphous tungsten oxides as an interfacial buffer layer on transparent anodes [J]. Org. Electron., 2009, 10 (5):791-797.[4] Hancox I, Rochford L A, Clare D, et al. Utilizing n-type vanadium oxide films as hole-extracting layers for small molecule organic photovoltaics [J]. Appl. Phys. Lett., 2011, 99 (1):013304-1-3.[5] Alem S, Bettignies R de, Nunzi J M, et al. Efficient polymer-based interpenetrated network photovoltaic cells [J]. Appl. Phys. Lett., 2004, 84 (12):2178-2180.[6] Wang H, Zhu F, Yang J, et al. Weak epitaxy growth affording high-mobility thin films of disk-like organic semiconductors [J]. Adv. Mater., 2007, 19 (16):2168-2171.[7] Jiang X, Dai J, Wang H, et al. Organic photovoltaic cells using hexadecafluorophthalocyaninatocopper (F16CuPc) as electron acceptor material [J]. Chem. Phys. Lett., 2007, 446 (4):329-332.[8] Zhenan B, Andrew J L, Janelle B. New air-stable n-channel organic thin film transistors [J]. J. Am. Chem. Soc., 1998, 120 (1):207-208.[9] Di C A, Yu G, Liu Y, et al. High-efficiency low operation voltage organic light-emitting diodes [J]. Appl. Phys. Lett., 2007, 90 (13):133508-1-3.[10] Dai J, Jiang X, Wang H, et al. Organic photovoltaic cell employing organic heterojunction as buffer layer [J]. Thin Solid Films, 2008, 516 (10):3320-3323.[11] Peumans P, Uchida S, Forrest S R. Efficient bulk heterojunction photovoltaic cells using smallmolecular-weight organic thin films [J]. Nature, 2003, 425 (6954):158-162.[12] Mao H Y, Bussolotti F, Qi D C, et al. Mechanism of the Fermi level pinning at organic donor-acceptor heterojunction interfaces [J]. Org. Electron., 2011, 12 (3):534-540.[13] 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 (24):243309-1-3.[14] Rand B P, Xue J, Uchida S, et al. Mixed donor acceptor molecular heterojunctions for photovoltaic applications. I. Material properties [J]. J. Appl. Phys., 2005, 98 (12):124902-1-7.