Prospects of potential ZnMgO front layer in CZTS solar cells

被引：16
作者：
Bahfir, A. [1 ,2 ]
Boumaour, M. [2 ]
Kechouane, M. [1 ]
机构：
[1] Sci & Technol Houari Boumediene Univ, USTHB, Algiers, Algeria
[2] Res Ctr Semicond Technol Energet, Div Semicond Convers Devices CRTSE, Algiers, Algeria
来源：
OPTIK | 2018年 / 169卷
关键词：
CZTS solar cells; Zn1-xMgxO; Conduction band offset; Numerical simulation; CONDUCTION-BAND OFFSET; SIMULATION; EFFICIENCY; CU2ZNSNS4;
D O I：
10.1016/j.ijleo.2018.05.068
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In the CZTS structure, ZnMgO alloy can be a promising alternative buffer layer candidate to toxic cadmium sulphide (CdS) material. The effects of conduction band offset (CBO) at ZnMgO/CZTS interface are investigated by numerical approach. The main factor examined is the Mg concentration of ZnMgO and at high values of this parameter, a significantly higher barrier is observed, leading to a distortion in the current-voltage curve (S-shape). This phenomenon caused by degraded open circuit voltage (V-oc) and fill factor (FF) parameters leads to overall poor performance. Zn1-xMgxO with 20% Mg concentration decreases maximally the CBO and eliminates the S-shape while increasing the conversion efficiency. The suggested design by ultimately replacing both CdS buffer and ZnO window layers by a single layer of ZnMgO leads to an optimised CZTS based solar cell exhibiting a conversion efficiency of 11.50% with Voc = 0.78 V, Jsc = 22.37 mA/cm(2) and FF = 66.11%.
引用
收藏
页码：196 / 202
页数：7
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  • [1] Alternative back contacts in kesterite Cu2ZnSn(S1-xSex)4 thin film solar cells
    Altamura, G.
    Grenet, L.
    Roger, C.
    Roux, F.
    Reita, V.
    Fillon, R.
    Fournier, H.
    Perraud, S.
    Mariette, H.
    [J]. JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY, 2014, 6 (01)
  • [2] Simulation and optimization of CdS-n/Cu2ZnSnS4 structure for solar cell applications
    Arbouz, H.
    Aissat, A.
    Vilcot, J. P.
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2017, 42 (13) : 8827 - 8832
  • [3] Advanced electrical simulation of thin film solar cells
    Burgelman, Marc
    Decock, Koen
    Khelifi, Samira
    Abass, Aimi
    [J]. THIN SOLID FILMS, 2013, 535 : 296 - 301
  • [4] Towards a CdS/Cu2ZnSnS4 solar cell efficiency improvement: A theoretical approach
    Courel, Maykel
    Andrade-Arvizu, J. A.
    Vigil-Galan, O.
    [J]. APPLIED PHYSICS LETTERS, 2014, 105 (23)
  • [5] Characterization of a CZTS thin film solar cell grown by sputtering method
    Dhakal, Tara P.
    Peng, Chien-Yi
    Tobias, R. Reid
    Dasharathy, Ramesh
    Westgate, Charles R.
    [J]. SOLAR ENERGY, 2014, 100 : 23 - 30
  • [6] Analysis of photovoltaic properties of Cu2ZnSn(S,Se)4-based solar cells
    Grenet, Louis
    Fillon, Raphael
    Altamura, Giovanni
    Fournier, Helene
    Emieux, Fabrice
    Faucherand, Pascal
    Perraud, Simon
    [J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2014, 126 : 135 - 142
  • [7] Buffer layers in Cu(In,Ga)Se2 solar cells and modules
    Hariskos, D
    Spiering, S
    Powalla, M
    [J]. THIN SOLID FILMS, 2005, 480 : 99 - 109
  • [8] Prediction of high efficiency ZnMgO/Si solar cells suppressing carrier recombination by conduction band engineering
    Knutsen, K. E.
    Schifano, R.
    Marstein, E. S.
    Svensson, B. G.
    Kuznetsov, A. Yu
    [J]. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2013, 210 (03): : 585 - 588
  • [9] Analysis of Cu2ZnSnS4/CdS based photovoltaic cell: A numerical simulation approach
    Meher, S. R.
    Balakrishnan, L.
    Alex, Z. C.
    [J]. SUPERLATTICES AND MICROSTRUCTURES, 2016, 100 : 703 - 722
  • [10] Control of conduction band offset in wide-gap Cu(In,Ga)Se2 solar cells
    Minemoto, T
    Hashimoto, Y
    Shams-Kolahi, W
    Satoh, T
    Negami, T
    Takakura, H
    Hamakawa, Y
    [J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2003, 75 (1-2) : 121 - 126
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