TITLE

Quinoxaline-based π-conjugated donor polymer for highly efficient organic thin-film solar cells

AUTHOR(S)
Kitazawa, Daisuke; Watanabe, Nobuhiro; Yamamoto, Shuhei; Tsukamoto, Jun
PUB. DATE
August 2009
SOURCE
Applied Physics Letters;8/3/2009, Vol. 95 Issue 5, p053701
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A quinoxaline-based π-conjugated donor polymer, poly[2,7-(9,9-dioctylfluorene)-alt-5,5-(5′,8′-di-2-thienyl-2′,3′-diphenylquinoxaline)] (N-P7), was synthesized to achieve a high power conversion efficiency (PCE) of bulk heterojunction (BHJ)-based solar cells. The optical band-gap and highest occupied molecular orbital level of N-P7 were 1.95 and -5.37 eV, respectively. BHJ-based solar cells using N-P7 as a donor and phenyl C71 butyric acid methyl ester as an acceptor gave a PCE as high as 5.5% under AM 1.5G 100 mW/cm2 illumination. We also investigated the effects of substituent groups of quinoxaline-based polymers on the morphology of the BHJ layer.
ACCESSION #
43593994

 

Related Articles

  • Effects of a-Si:H layer thicknesses on the performance of a-Si:H/c-Si heterojunction solar cells. Fujiwara, Hiroyuki; Kondo, Michio // Journal of Applied Physics;3/1/2007, Vol. 101 Issue 5, p054516 

    We have fabricated hydrogenated amorphous silicon (a-Si:H)/crystalline silicon (c-Si) heterojunction solar cells with different a-Si:H layer thicknesses, in order to determine effects of a-Si:H layer thicknesses on the performance of a-Si:H/c-Si solar cells. The thicknesses of a-Si:H p-i layers...

  • Highly efficient semitransparent tandem organic solar cells with complementary absorber materials. Meiss, Jan; Menke, Torben; Leo, Karl; Uhrich, Christian; Gnehr, Wolf-Michael; Sonntag, Stefan; Pfeiffer, Martin; Riede, Moritz // Applied Physics Letters;7/25/2011, Vol. 99 Issue 4, p043301 

    We present highly efficient, semitransparent small molecule organic solar cells. The devices employ an indium tin oxide-free top contact, consisting of thin metal films. An additional organic layer is used to enhance light outcoupling. The solar cell incorporates two stacked subcells, each...

  • Relation between carrier mobility and cell performance in bulk heterojunction solar cells consisting of soluble polythiophene and fullerene derivatives. Nakamura, Jun-ichi; Murata, Kazuhiko; Takahashi, Kohshin // Applied Physics Letters;9/26/2005, Vol. 87 Issue 13, p132105 

    The effect of carrier mobility on the cell performance was examined in the bulk heterojunction solar cells consisting of soluble polythiophene (PHTh) and fullerene derivatives (PCBM). The hole mobility decreased from 6.3×10-3 cm2 V-1 s-1 in the pure PHTh by blending PCBM, while the electron...

  • Efficient solar cells from light-capturing quasi-crystals.  // Engineer (Online Edition);10/25/2013, p11 

    The article reports on the development of a new method for creating high efficiency solar cells by altering the structure of quasi-crystals. The method was developed by an international team of scientists from the Universities of York and St. Andrews in Great Britain, Sun Yat-sen University and...

  • Chemical and electronic surface structure of 20%-efficient Cu(In,Ga)Se2 thin film solar cell absorbers. Bär, M.; Repins, I.; Contreras, M. A.; Weinhardt, L.; Noufi, R.; Heske, C. // Applied Physics Letters;8/3/2009, Vol. 95 Issue 5, p052106 

    The chemical and electronic surface structure of 20%-efficient Cu(In,Ga)Se2 thin film solar cell absorbers was investigated as a function of deposition process termination (i.e., ending the growth process in absence of either Ga or In). In addition to the expected In (Ga) enrichment, direct and...

  • Influence of copper excess on the absorber quality of CuInSe2. Gütay, Levent; Regesch, David; Larsen, Jes K.; Aida, Yasuhiro; Depredurand, Valérie; Siebentritt, Susanne // Applied Physics Letters;10/10/2011, Vol. 99 Issue 15, p151912 

    The compositional dependence of the optoelectronic quality of CuInSe2 thin film absorbers is investigated on single- and poly-crystalline films with varying [Cu]/[In]-ratios. We quantify the quality of the absorbers by the splitting of quasi-Fermi levels, determined by spectral...

  • The Role of Oxide Thin Layer in Inverted Structure Polymer Solar Cells. Wiranwetchayan, Orawan; Zhiqiang Liang; Qifeng Zhang; Guozhong Cao; Singjai, Pisith // Materials Sciences & Applications;Dec2011, Vol. 2 Issue 12, p1697 

    The role of wide band gap oxide thin layer in inverted structure polymer solar cells was investigated by employing oxide films of TiO2 and Nb2O5 approximately 10 nm in thickness deposited onto FTO substrates. The experimental results demonstrated that the thin oxide layer serving to separate the...

  • Enhanced light absorption in thin film solar cells with embedded dielectric nanoparticles: Induced texture dominates Mie scattering. Nagel, James R.; Scarpulla, Michael A. // Applied Physics Letters;4/15/2013, Vol. 102 Issue 15, p151111 

    We elucidate the dominant physical mechanisms for enhanced light absorption in thin film solar cells with embedded dielectric nanoparticles and conformal surface texturing. A prior work reported enhancement in short-circuit current for such a structure and attributed this gain to increased...

  • Systematic approach of nanoparticle design to enhance the broadband plasmonic scattering effect. Soohwan Byun; Hak Yong Lee; Jeonghoon Yoo // Journal of Applied Physics;2014, Vol. 116 Issue 1, p184302-1 

    To overcome low conversion efficiency of thin film solar cells, using the localized surface plasmon effect caused by the interaction between the incident beam and metallic nanoparticles inserted in or on the absorbing layer can be a promising alternative to overcome the low efficiency problem....

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics