TITLE

Optimizing the light absorption of graphene-based organic solar cells by tailoring the weak microcavity with dielectric/graphene/dielectric multilayer

AUTHOR(S)
Chen, Yi; Long, Yongbing; Liu, Yangtian; Shen, Liang; Zhang, Yangdong; Deng, Qiguang; Zheng, Zhuoshen; Yu, Wenjuan; Ruan, Shenping
PUB. DATE
August 2013
SOURCE
Applied Physics Letters;8/5/2013, Vol. 103 Issue 6, p063301
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Investigation into the organic solar cells (OSCs) with graphene electrode demonstrates that the weak-microcavity (WMC) constructed between the transparent electrode and top metal electrode plays an important role in the absorption properties of the devices. If the WMC structure is not optimized, the absorption of the graphene-based devices cannot surpass that of OSC devices with indium tin oxide electrode. By employing dielectric/graphene/dielectric multilayer to optimize the WMC, the absorption can be improved by a maximum value of 21.1% within a broad wavelength range of 410-636 nm. Correspondingly, an improvement of 12.1% in total absorbed photons is achieved for the device.
ACCESSION #
89656932

 

Related Articles

  • Graphene as a transparent electrode for amorphous silicon-based solar cells. Vaianella, F.; Rosolen, G.; Maes, B. // Journal of Applied Physics;6/28/2015, Vol. 117 Issue 24, p243102-1 

    The properties of graphene in terms of transparency and conductivity make it an ideal candidate to replace indium tin oxide (ITO) in a transparent conducting electrode. However, graphene is not always as good as ITO for some applications, due to a non-negligible absorption. For amorphous silicon...

  • Enhanced ultraviolet response using graphene electrodes in organic solar cells. Zhao, Zhouying; Fite, John D.; Haldar, Pradeep; Ung Lee, Ji // Applied Physics Letters;8/6/2012, Vol. 101 Issue 6, p063305 

    We demonstrate enhanced ultraviolet (UV) response in organic photovoltaic devices using few-layer graphene as the transparent and conducting electrode. This is compared to the same device stack fabricated on a conventional indium tin oxide (ITO) electrode. The enhanced UV response was confirmed...

  • Top illuminated inverted organic ultraviolet photosensors with single layer graphene electrodes. Burkhardt, Martin; Liu, Wei; Shuttle, Christopher G.; Banerjee, Kaustav; Chabinyc, Michael L. // Applied Physics Letters;7/16/2012, Vol. 101 Issue 3, p033302 

    Inverted, top-illuminated organic photodiodes are demonstrated using transparent electrodes including single layer graphene (SLG) and thin gold or silver with poly(3-hexylthiophene) and 1 -(3-methoxycarboyl)-propyl-1-phenyl-(6,6)C61 as active layer. The devices are free of both indium-tin-oxide...

  • Large-area functionalized CVD graphene for work function matched transparent electrodes. Bointon, Thomas H.; Jones, Gareth F.; De Sanctis, Adolfo; Hill-Pearce, Ruth; Craciun, Monica F.; Russo, Saverio // Scientific Reports;11/13/2015, p16464 

    The efficiency of flexible photovoltaic and organic light emitting devices is heavily dependent on the availability of flexible and transparent conductors with at least a similar workfunction to that of Indium Tin Oxide. Here we present the first study of the work function of large area (up to 9...

  • Improved photovoltaic effects in InGaN-based multiple quantum well solar cell with graphene on indium tin oxide nanodot nodes for transparent and current spreading electrode. Hoon Seo, Tae; Shim, Jae-Phil; Jin Chae, Seung; Shin, GangU; Kyoung Kim, Bo; Lee, Dong-Seon; Hee Lee, Young; Suh, Eun-Kyung // Applied Physics Letters;1/21/2013, Vol. 102 Issue 3, p031116 

    We implemented graphene network on indium tin oxide (ITO) nanodots to a transparent and current-spreading electrode in InGaN-based solar cell to improve power conversion efficiency. The external quantum efficiency and short circuit current density (Jsc) of solar cells with graphene network on...

  • n-Si bifacial concentrator solar cell. Untila, G.; Kost, T.; Chebotareva, A.; Zaks, M.; Sitnikov, A.; Solodukha, O.; Shvarts, M. // Semiconductors;Sep2012, Vol. 46 Issue 9, p1194 

    Various approaches have been developed for reducing the cost of the photoelectricity produced by silicon solar cells (SCs). Of highest priority among these approaches are improvement of the efficiency of the SCs, transition from p-Si to n-Si, light concentration, and use of bifacial SCs. In the...

  • Polyvinylpyrrolidone-modified indium tin oxide as an electron-collecting electrode for inverted polymer solar cells. Shim, J. W.; Cheun, H.; Meyer, J.; Fuentes-Hernandez, C.; Dindar, A.; Zhou, Y. H.; Hwang, D. K.; Kahn, A.; Kippelen, B. // Applied Physics Letters;8/13/2012, Vol. 101 Issue 7, p073303 

    We report on the photovoltaic properties of inverted polymer solar cells that use a polyvinylpyrrolidone (PVP) modified indium tin oxide (ITO) layer as the electron-collecting electrode. An ultrathin PVP layer, prepared by spin-coating, on top of ITO, was used to induce a reduction of its work...

  • Generation of transparent conductive electrodes by laser consolidation of LIFT printed ITO nanoparticle layers. Baum, M.; Kim, H.; Alexeev, I.; Piqué, A.; Schmidt, M. // Applied Physics A: Materials Science & Processing;Jun2013, Vol. 111 Issue 3, p799 

    Indium tin oxide (ITO) is one of the few materials available that display a high transparency in the visible wavelength region and at the same time can conduct electrical currents. Thus it is widespread in many optoelectronic applications such as displays or solar cells. Layers of this material...

  • Indium tin oxide-free transparent and conductive electrode based on SnOx∣ Ag ∣ SnOx for organic solar cells. Bou, A.; Torchio, Ph.; Barakel, D.; Thierry, F.; Sangar, A.; Thoulon, P.-Y.; Ricci, M. // Journal of Applied Physics;2014, Vol. 116 Issue 2, p023105-1 

    A SnOx ∣ Ag ∣ SnOx multilayer deposited by E-beam evaporation is proposed as transparent anode for a (poly-3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) bulk heterojunction based Organic Solar Cell (OSC). Such multilayers are studied and manufactured with the...

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