TITLE

Influence of codeposition on the performance of CuPc–C[sub 60] heterojunction photovoltaic devices

AUTHOR(S)
Sullivan, P.; Heutz, S.; Schultes, S.M.; Jones, T.S.
PUB. DATE
February 2004
SOURCE
Applied Physics Letters;2/16/2004, Vol. 84 Issue 7, p1210
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We investigate the effects of introducing codeposited mixed layers on the performance of copper phthalocyanine (CuPc)–fullerene (C[sub 60]) heterojunction photovoltaic devices. Significant improvements in device performance are seen when mixed layers are used compared to discrete layers. The effects of composition are examined for a series of devices incorporating mixed layers with well-defined composition ratios. Atomic force microscopy and electronic absorption spectroscopy studies show that the mixed layer films are smooth and amorphous, and undergo intermolecular intermixing. Finally, the use of multiple mixed layers leads to additional enhancements due to the creation of a gradient of donor–acceptor compositions that results in improved channels for charge transport. © 2004 American Institute of Physics.
ACCESSION #
12202298

 

Related Articles

  • High Photoelectric Conversion Efficiency of Metal Phthalocyanine/Fullerene Heterojunction Photovoltaic Device. Chi-Feng Lin; Mi Zhang; Shun-Wei Liu; Tien-Lung Chiu; Jiun-Haw Lee // International Journal of Molecular Sciences;Jan2011, Vol. 12 Issue 1, p476 

    This paper introduces the fundamental physical characteristics of organic photovoltaic (OPV) devices. Photoelectric conversion efficiency is crucial to the evaluation of quality in OPV devices, and enhancing efficiency has been spurring on researchers to seek alternatives to this problem. In...

  • Improved morphology of polymer-fullerene photovoltaic devices with thermally induced concentration gradients. Drees, M.; Davis, R. M.; Heflin, J. R. // Journal of Applied Physics;2/1/2005, Vol. 97 Issue 3, p036103 

    Gradient concentration profiles for efficient charge transfer and transport can be created in polymer-fullerene organic photovoltaics by thermally induced interdiffusion of an initial bilayer. Prior demonstrations with poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV)...

  • Molecular level control of donor/acceptor heterostructures in organic photovoltaic devices. Pradhan, Basudev; Bandyopadhyay, Anirban; Pal, Amlan J. // Applied Physics Letters;7/26/2004, Vol. 85 Issue 4, p663 

    We have fabricated donor/acceptor-type organic photovoltaic devices based on copper phthalocyanine and Rose Bengal with varied number of donor/acceptor interfaces. Device architecture, namely, the number of such interfaces in the molecular scale, has been controlled via layer-by-layer...

  • Application of metal-doped organic layer both as exciton blocker and optical spacer for organic photovoltaic devices. Chan, M. Y.; Lai, S. L.; Lau, K. M.; Lee, C. S.; Lee, S. T. // Applied Physics Letters;10/16/2006, Vol. 89 Issue 16, p163515 

    An effective optical spacer based on doping of ytterbium (Yb) metal into bathophenanthroline (BPhen) has been developed for applications in organic photovoltaic (OPV) devices. Utilizing Yb:BPhen as an optical spacer in standard copper phthalocyanine/C60 photovoltaic devices, power efficiency can...

  • Optical optimization of polyfluorene-fullerene blend photodiodes. Persson, Nils-Krister; Arwin, Hans; Inganas, Olle // Journal of Applied Physics;2/1/2005, Vol. 97 Issue 3, p034503 

    Blends of polyfluorene-fullerenes are promising materials for polymer-based photovoltaic devices (PPVD). Using spectroscopic ellipsometry we deduce the dielectric function for the blend of the fullerene derivative [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) and the alternating polyfluorene...

  • The fabrication of polyfluorene and polycarbazole-based photovoltaic devices using an air-stable process route. Bovill, E.; Yi, H.; Iraqi, A.; Lidzey, D. G. // Applied Physics Letters;2014, Vol. 105 Issue 22, p1 

    We report a comparative study based on the fabrication of polymer:fullerene photovoltaic (PV) devices incorporating carbazole, fluorene, and a PTB based co-polymer. We have explored the efficiency and performance of such devices when the active polymer:fullerene layer is deposited by...

  • Synthesis and Characterisation of High Fullerene Content Polymers and Their Use in Organic Photovoltaic Devices. Clark, Sean M.; Campbell, Jonathan A.; Lewis, David A. // Australian Journal of Chemistry;2015, Vol. 68 Issue 11, p1767 

    Narrow dispersity polymers with a high tethered fullerene content were synthesised by first polymerising poly(chloromethyl styrene) using reversible addition–fragmentation chain transfer (RAFT) polymerisation and subsequently functionalising them with pristine fullerene. The polymers...

  • On the Properties of Photovoltaic X-ray Detectors Based on GaAs Epitaxial Structures. Dvoryankin, V.F.; Dikaev, Yu M.; Kudryashov, A.A. // Technical Physics;Jun2004, Vol. 49 Issue 6, p787 

    Operation of a new photovoltaic detector of X-ray bremsstrahlung based on GaAs epitaxial structures at room temperature without bias is studied. The efficiency of the absorbed energy conversion into short-circuit current is calculated from the measured photoresponses for the photon energies in...

  • Effects of low temperature anneals on the photovoltage in Si nanocrystals. Korotchenkov, O.; Podolian, A.; Kuryliuk, V.; Romanyuk, B.; Melnik, V.; Khatsevich, I. // Journal of Applied Physics;Mar2012, Vol. 111 Issue 6, p063501 

    We report on the time decays of surface photovoltage (SPV) and SPV spectra for Si nanocrystals (nc-Si) embedded into a SiO2 matrix. After precipitation at 1150 °C anneal in Ar the SPV increases by a factor of ≈30 compared with the value observed in an oxidized Si substrate. An increase...

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