Multijunction organic photovoltaics with a broad spectral response

Jill A. MacKo, Richard R. Lunt, Timothy P. Osedach, Patrick R. Brown, Miles C. Barr, Karen K. Gleason, Vladimir Bulovic

    Research output: Research - peer-reviewArticle

    • 13 Citations

    Abstract

    We demonstrate series-integrated multijunction organic photovoltaics fabricated monolithically by vapor-deposition in a transposed subcell order with the near-infrared-absorbing subcell in front of the green-absorbing subcell. This transposed subcell order is enabled by the highly complementary absorption spectra of a near-infrared-absorbing visibly-transparent subcell and a visible-absorbing subcell and motivated by the non-spatially-uniform optical intensity in nanoscale photovoltaics. The subcell order and thicknesses are optimized via transfer-matrix formalism and short-circuit current simulations. An efficient charge recombination zone consisting of layers of BCP/Ag/MoOx leads to negligible voltage and series-resistance losses. Under 1-sun illumination the multijunction solar cells exhibit a power conversion efficiency of 5.5 ± 0.2% with an FF of 0.685 ± 0.002 and a V OC of 1.65 ± 0.02 V, corresponding to the sum of the V OC of the component subcells. These devices exhibit a broad spectral response (in the wavelength range of 350 nm to 850 nm) but are limited by subcell external quantum efficiencies between 20% and 30% over the photoactive spectrum. This journal is

    LanguageEnglish (US)
    Pages14548-14553
    Number of pages6
    JournalPhysical Chemistry Chemical Physics
    Volume14
    Issue number42
    DOIs
    StatePublished - Nov 14 2012

    Profile

    short circuit currents
    spectral sensitivity
    quantum efficiency
    sun
    solar cells
    illumination
    vapor deposition
    formalism
    absorption spectra
    electric potential
    wavelengths
    simulation
    Infrared radiation
    Vapor deposition
    Quantum efficiency
    Short circuit currents
    Sun
    Conversion efficiency
    Absorption spectra
    Lighting

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Physics and Astronomy(all)

    Cite this

    MacKo, J. A., Lunt, R. R., Osedach, T. P., Brown, P. R., Barr, M. C., Gleason, K. K., & Bulovic, V. (2012). Multijunction organic photovoltaics with a broad spectral response. Physical Chemistry Chemical Physics, 14(42), 14548-14553. DOI: 10.1039/c2cp43000b

    Multijunction organic photovoltaics with a broad spectral response. / MacKo, Jill A.; Lunt, Richard R.; Osedach, Timothy P.; Brown, Patrick R.; Barr, Miles C.; Gleason, Karen K.; Bulovic, Vladimir.

    In: Physical Chemistry Chemical Physics, Vol. 14, No. 42, 14.11.2012, p. 14548-14553.

    Research output: Research - peer-reviewArticle

    MacKo, JA, Lunt, RR, Osedach, TP, Brown, PR, Barr, MC, Gleason, KK & Bulovic, V 2012, 'Multijunction organic photovoltaics with a broad spectral response' Physical Chemistry Chemical Physics, vol 14, no. 42, pp. 14548-14553. DOI: 10.1039/c2cp43000b
    MacKo JA, Lunt RR, Osedach TP, Brown PR, Barr MC, Gleason KK et al. Multijunction organic photovoltaics with a broad spectral response. Physical Chemistry Chemical Physics. 2012 Nov 14;14(42):14548-14553. Available from, DOI: 10.1039/c2cp43000b
    MacKo, Jill A. ; Lunt, Richard R. ; Osedach, Timothy P. ; Brown, Patrick R. ; Barr, Miles C. ; Gleason, Karen K. ; Bulovic, Vladimir. / Multijunction organic photovoltaics with a broad spectral response. In: Physical Chemistry Chemical Physics. 2012 ; Vol. 14, No. 42. pp. 14548-14553
    @article{8bab8ac7319045088b4ec602f9937c60,
    title = "Multijunction organic photovoltaics with a broad spectral response",
    abstract = "We demonstrate series-integrated multijunction organic photovoltaics fabricated monolithically by vapor-deposition in a transposed subcell order with the near-infrared-absorbing subcell in front of the green-absorbing subcell. This transposed subcell order is enabled by the highly complementary absorption spectra of a near-infrared-absorbing visibly-transparent subcell and a visible-absorbing subcell and motivated by the non-spatially-uniform optical intensity in nanoscale photovoltaics. The subcell order and thicknesses are optimized via transfer-matrix formalism and short-circuit current simulations. An efficient charge recombination zone consisting of layers of BCP/Ag/MoOx leads to negligible voltage and series-resistance losses. Under 1-sun illumination the multijunction solar cells exhibit a power conversion efficiency of 5.5 ± 0.2% with an FF of 0.685 ± 0.002 and a V OC of 1.65 ± 0.02 V, corresponding to the sum of the V OC of the component subcells. These devices exhibit a broad spectral response (in the wavelength range of 350 nm to 850 nm) but are limited by subcell external quantum efficiencies between 20% and 30% over the photoactive spectrum. This journal is",
    author = "MacKo, {Jill A.} and Lunt, {Richard R.} and Osedach, {Timothy P.} and Brown, {Patrick R.} and Barr, {Miles C.} and Gleason, {Karen K.} and Vladimir Bulovic",
    year = "2012",
    month = "11",
    doi = "10.1039/c2cp43000b",
    volume = "14",
    pages = "14548--14553",
    journal = "Physical Chemistry Chemical Physics",
    issn = "1463-9076",
    publisher = "Royal Society of Chemistry",
    number = "42",

    }

    TY - JOUR

    T1 - Multijunction organic photovoltaics with a broad spectral response

    AU - MacKo,Jill A.

    AU - Lunt,Richard R.

    AU - Osedach,Timothy P.

    AU - Brown,Patrick R.

    AU - Barr,Miles C.

    AU - Gleason,Karen K.

    AU - Bulovic,Vladimir

    PY - 2012/11/14

    Y1 - 2012/11/14

    N2 - We demonstrate series-integrated multijunction organic photovoltaics fabricated monolithically by vapor-deposition in a transposed subcell order with the near-infrared-absorbing subcell in front of the green-absorbing subcell. This transposed subcell order is enabled by the highly complementary absorption spectra of a near-infrared-absorbing visibly-transparent subcell and a visible-absorbing subcell and motivated by the non-spatially-uniform optical intensity in nanoscale photovoltaics. The subcell order and thicknesses are optimized via transfer-matrix formalism and short-circuit current simulations. An efficient charge recombination zone consisting of layers of BCP/Ag/MoOx leads to negligible voltage and series-resistance losses. Under 1-sun illumination the multijunction solar cells exhibit a power conversion efficiency of 5.5 ± 0.2% with an FF of 0.685 ± 0.002 and a V OC of 1.65 ± 0.02 V, corresponding to the sum of the V OC of the component subcells. These devices exhibit a broad spectral response (in the wavelength range of 350 nm to 850 nm) but are limited by subcell external quantum efficiencies between 20% and 30% over the photoactive spectrum. This journal is

    AB - We demonstrate series-integrated multijunction organic photovoltaics fabricated monolithically by vapor-deposition in a transposed subcell order with the near-infrared-absorbing subcell in front of the green-absorbing subcell. This transposed subcell order is enabled by the highly complementary absorption spectra of a near-infrared-absorbing visibly-transparent subcell and a visible-absorbing subcell and motivated by the non-spatially-uniform optical intensity in nanoscale photovoltaics. The subcell order and thicknesses are optimized via transfer-matrix formalism and short-circuit current simulations. An efficient charge recombination zone consisting of layers of BCP/Ag/MoOx leads to negligible voltage and series-resistance losses. Under 1-sun illumination the multijunction solar cells exhibit a power conversion efficiency of 5.5 ± 0.2% with an FF of 0.685 ± 0.002 and a V OC of 1.65 ± 0.02 V, corresponding to the sum of the V OC of the component subcells. These devices exhibit a broad spectral response (in the wavelength range of 350 nm to 850 nm) but are limited by subcell external quantum efficiencies between 20% and 30% over the photoactive spectrum. This journal is

    UR - http://www.scopus.com/inward/record.url?scp=84867346153&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84867346153&partnerID=8YFLogxK

    U2 - 10.1039/c2cp43000b

    DO - 10.1039/c2cp43000b

    M3 - Article

    VL - 14

    SP - 14548

    EP - 14553

    JO - Physical Chemistry Chemical Physics

    T2 - Physical Chemistry Chemical Physics

    JF - Physical Chemistry Chemical Physics

    SN - 1463-9076

    IS - 42

    ER -