Ordered bulk heterojunction solar cells with vertically aligned TiO2 nanorods embedded in a conjugated polymer

Kuo, C. Y.; Tang, W. C.; Gau, C.; Guo, T. F.; Jeng, D. Z.
July 2008
Applied Physics Letters;7/21/2008, Vol. 93 Issue 3, p033307
Academic Journal
Vertically aligned TiO2 nanorods were prepared by its sol-gel which is spun coat onto aluminum anodic oxide template pregrown on an indium tin oxide glass substrate. The poly(3-hexylthiophene) (P3HT), a conjugate polymer infiltrated into the nanorod arrays, and the combined system were used as the active layer. The nanorods/P3HT solar cell with cell size of 0.06 cm2 demonstrated a power conversion efficiency of 0.512% while the bilayer TiO2 film/P3HT cell was 0.12%. The current work provides fabrication method for a stable well aligned nanorods/polymer hybrid solar cell production.


Related Articles

  • Kinetics of interfacial charges in hybrid GaAs/oligothiophene semiconducting heterojunctions. Cabanillas-Gonzalez, Juan; Gambetta, Alessio; Zavelani-Rossi, Margherita; Lanzani, Guglielmo // Applied Physics Letters;9/17/2007, Vol. 91 Issue 12, p122113 

    The authors report on pump-probe measurements in a hybrid heterostructure consisting of a modified oligothiophene layer deposited over a GaAs substrate. Upon photoexcitation of the bilayer with 100 fs, a new photoinduced absorption band (PA2) appeared being attributed to oligothiophene cations...

  • Tailoring organic heterojunction interfaces in bilayer polymer photovoltaic devices. Tada, Akira; Yanfang Geng; Qingshuo Wei; Hashimoto, Kazuhito; Tajima, Keisuke // Nature Materials;Jun2011, Vol. 10 Issue 6, p450 

    In an ideal model, a p-n junction is formed by two stacked slabs of semiconductors. Although the construction of actual devices is generally more complex, we show that such a simple method can in fact be applied to the formation of organic heterojunctions. Two films of the organic semiconductors...

  • Tilted bulk heterojunction organic photovoltaic cells grown by oblique angle deposition. Ning Li; Forrest, Stephen R. // Applied Physics Letters;9/21/2009, Vol. 95 Issue 12, p123309 

    We demonstrate small molecule bulk heterojunction organic photovoltaic cells using oblique angle vacuum deposition. Obliquely deposited donor chloroaluminum phthalocyanine (ClAlPc) films on indium tin oxide have surface feature sizes of ∼30 nm, resulting in ClAlPc/C60 donor-acceptor...

  • Three-dimensional simulations of a thin film heterojunction solar cell with a point contact/defect passivation structure at the heterointerface. Allsop, N.; Nürnberg, R.; Lux-Steiner, M. Ch.; Schedel-Niedrig, Th. // Applied Physics Letters;9/21/2009, Vol. 95 Issue 12, p122108 

    Thin film heterojunction solar cells such as those based on the chalcopyrites or amorphous silicon are often limited by interface recombination at the active heterointerface. A new strategy to overcome this limitation is described, replacing the conventional wider band gap contact material with...

  • Impact of epitaxial growth at the heterointerface of a-Si:H/c-Si solar cells. Fujiwara, Hiroyuki; Kondo, Michio // Applied Physics Letters;1/1/2007, Vol. 90 Issue 1, p013503 

    The authors have demonstrated that interface structures of heterojunction solar cells consisting of hydrogenated amorphous silicon (a-Si:H) and crystalline silicon (c-Si) have quite large impact on the solar cell performance. In particular, unintentional epitaxial growth was found to occur...

  • Combined optical and electrical modeling of polymer:fullerene bulk heterojunction solar cells. Kotlarski, Jan D.; Blom, Paul W. M.; Koster, Lambert. J. A.; Lenes, Martijn; Slooff, Lenneke H. // Journal of Applied Physics;Apr2008, Vol. 103 Issue 8, p084502 

    Optical interference effects are important for the total absorption as well as the profile of the exciton generation rate in polymer:fullerene bulk heterojunction solar cells. For solar cells with an active layer of poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene] as...

  • Nano exploration of conducting polymers for highly conjugated electronic configuration organic semiconductors and PV cells. Choudhary, R. B. // Popular Plastics & Packaging;Feb2008, Vol. 53 Issue 2, p35 

    The article focuses on nano exploration of conducting polymers for highly conjugated electronic configuration of organic semiconductors and photovoltaic (PV) cells. It presents the characteristics of conjugated polymers and examines the mode of storing the charge along the polymer chain. It also...

  • Intensity-dependent equivalent circuit parameters of organic solar cells based on pentacene and C60. Yoo, Seunghyup; Domercq, Benoit; Kippelen, Bernard // Journal of Applied Physics;5/15/2005, Vol. 97 Issue 10, p10P109 

    We present studies of the current–voltage characteristics of organic solar cells based on heterojunctions of pentacene and C60 as a function of illumination intensity. The photovoltaic response at a given illumination level is parameterized and modeled using the equivalent circuit model...

  • Nanoimprinted large area heterojunction pentacene-C60 photovoltaic device. Dissanayake, D. M. Nanditha M.; Adikaari, A. A. D. T.; Curry, Richard J.; Hatton, Ross A.; Silva, S. R. P. // Applied Physics Letters;6/18/2007, Vol. 90 Issue 25, p253502 

    A pentacene-C60 bilayer heterojunction organic photovoltaic device with interpenetrating donor-acceptor interface was fabricated by nanoimprinting the pentacene layer prior to C60 deposition. An amorphous silicon substrate nanostructured using an excimer laser was imprinted onto the pentacene...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics