Intermediate reflectors for enhanced top cell performance in photovoltaic thin-film tandem cells

被引：55
作者：
Bielawny, Andreas [1 ]
Rockstuhl, Carsten [2 ]
Lederer, Falk [2 ]
Wehrspohn, Ralf B. [1 ]
机构：
[1] Univ Halle Wittenberg, Inst Phys, D-06120 Halle, Germany
[2] Univ Jena, Inst Festkorpertheorie & Opt, D-07743 Jena, Germany
来源：
OPTICS EXPRESS | 2009年 / 17卷 / 10期
关键词：
MICROCRYSTALLINE SILICON; PHOTONIC CRYSTAL; EFFICIENCY; DESIGN;
D O I：
10.1364/OE.17.008439
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have investigated the impact of three types of intermediate reflectors on the absorption enhancement in the top cell of micromorph tandem solar cells using rigorous diffraction theory. As intermediate reflectors we consider homogenous dielectric thin-films and 1D and 3D photonic crystals. Besides the expected absorption enhancements in cases where photonic band gaps are matched to the absorption edge of the semiconductor, our results distinguish between the impact of zero order Bragg-resonances and diffraction-based enhancement at larger lattice constants of the 3D photonic crystal. Our full-spectrum analysis permits for a quantitative prediction of the photovoltaic conversion efficiency increase of the a-Si: H top cell. (C) 2009 Optical Society of America
引用
收藏
页码：8439 / 8446
页数：8
相关论文
共 22 条
  • [1] [Anonymous], P IEEE PHOT EN CONV
  • [2] Improving thin-film crystalline silicon solar cell efficiencies with photonic crystals
    Bermel, Peter
    Luo, Chiyan
    Zeng, Lirong
    Kimerling, Lionel C.
    Joannopoulos, John D.
    [J]. OPTICS EXPRESS, 2007, 15 (25) : 16986 - 17000
  • [3] BIELAWNY A, 2007, P SPIE OPTICS PHOTON
  • [4] 3D photonic crystal intermediate reflector for micromorph thin-film tandem solar cell
    Bielawny, Andreas
    Uepping, Johannes
    Miclea, Paul T.
    Wehrspohn, Ralf B.
    Rockstuhl, Carsten
    Lederer, Falk
    Peters, Marius
    Steidl, Lorenz
    Zentel, Rudolf
    Lee, Seung-Mo
    Knez, Mato
    Lambertz, Andreas
    Carius, Reinhard
    [J]. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2008, 205 (12): : 2796 - 2810
  • [5] Self-assembly approach to optical metamaterials
    Galisteo, JF
    García-Santamaría, F
    Golmayo, D
    Juárez, BH
    López, C
    Palacios, E
    [J]. JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, 2005, 7 (02): : S244 - S254
  • [6] Optically enhanced absorption in thin silicon layers using photonic crystals
    Gee, JM
    [J]. CONFERENCE RECORD OF THE TWENTY-NINTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE 2002, 2002, : 150 - 153
  • [7] Green M. A., 2003, Third Generation Photovoltaics
  • [8] Solar cell efficiency tables (Version 30)
    Green, Martin A.
    Emery, Keith
    Hisikawa, Yoshihiro
    Warta, Wilhelm
    [J]. PROGRESS IN PHOTOVOLTAICS, 2007, 15 (05): : 425 - 430
  • [9] Joannopoulos JD, 2008, PHOTONIC CRYSTALS: MOLDING THE FLOW OF LIGHT, 2ND EDITION, P1
  • [10] Microcrystalline silicon and micromorph tandem solar cells
    Keppner, H
    Meier, J
    Torres, P
    Fischer, D
    Shah, A
    [J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1999, 69 (02): : 169 - 177
123