Towards high-efficiency CZTS solar cell through buffer layer optimization

Jhuma, Farjana Akter; Shaily, Marshia Zaman; Rashid, Mohammad Junaebur

doi:10.1007/s40243-019-0144-1

Cited by 127 publications

(62 citation statements)

References 20 publications

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“…The maximum reported efficiency of CZTS solar cell is ~ 11% [11]. For CZTS solar cell, researchers are using different buffer layers such as CdS, ZnS and CdZnS [12]. Among them CdS turned out as a most potential buffer layer for CZTS solar cell, even though it has toxic component and wastage probability [13].…”

Section: Introductionmentioning

confidence: 99%

“…The energy bandgap of CdS 2.42 eV allows maximum absorption of photons in the absorber layer [17]. For achieving enhanced performance of the CZTS solar cell, the thickness of the CdS buffer layer should be kept around 50 nm to reduce the absorption loss in the buffer layer [12]. For getting a more efficient buffer layer, the resistivity of CdS layer needs to be reduced which can be achieved through doping with different materials such as Silver (Ag), Copper (Cu), Chlorine (Cl), Indium (In), Aluminum (Al) and others [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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Simulation study to find suitable dopants of CdS buffer layer for CZTS solar cell

Jhuma

Rashid

2019

J Theor Appl Phys

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The performance of CZTS solar cell, a promising candidate in the field of energy production from sunlight, can be improved by optimizing the parameters of most widely used CdS buffer layer. In this work, numerical study have been done on the typical CZTS solar cell structures containing Mo thin film as back contact on glass substrate using SCAPS-1D solar cell simulation software. Then, the CZTS has been used as the absorber layer followed by CdS buffer later. Following, ZnO and transparent conducting oxide n-ITO layers have been considered as window layer and front contact, respectively. In the simulations, the CdS buffer layer has been doped with three different materials such as Silver (Ag), Copper (Cu) and Chlorine (Cl) for a wide acceptable range of carrier concentration. After obtaining the suitable carrier concentration, the thickness of the doped buffer layer has been varied keeping other layer parameters constant to see the variation of performance parameters open circuit voltage (V oc), short circuit current density (J sc), fill factor (FF) and efficiency (η) of the CZTS solar cell.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simulation study to find suitable dopants of CdS buffer layer for CZTS solar cell

Jhuma

Rashid

2019

J Theor Appl Phys

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“…CdTe [35][36] CIGS [37][38][39][40] CZTS [20,41] CdS [35,38] ZnS [20,38,42] AZO [35] ITO [20] ZnTe [35] W (µ m )…”

Section: Parametersmentioning

confidence: 99%

Simulation of CdTe, CIGS and CZTS Solar Cells using WxAMPS Software

Hashmi¹,

Hossain²,

Rashid³

2021

Preprint

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Solar cells made of Cadmium telluride (CdTe), copper indium gallium selenide (CIGS) and copper zinc tin sulfide (CZTS) are currently the most widely studied thin film technologies.To increase the performance and for better understanding of the behavior of CdTe, CIGS and CZTS solar cell simulations have been performed using WxAMPS software. Moreover, all the solar cells have been simulated with different buffer layers and transparent conductive oxide (TCO) layers such as Cadmium Sulphide (CdS), Zinc Sulphide (ZnS), Aluminum Zinc Oxide (AZO) and Indium Tin Oxide (ITO).Variations in the thickness and doping concentrations of TCO layers, buffer layers, and absorber layers have been done to test the performance of the solar cells.The effects of using a Back-Surface Reflector (BSR) layer made of Zinc Telluride (ZnTe) have also been studied.Furthermore, the simulation work is exceptional in this regard since all of the layers of CdTe, CIGS, and CZTS solar cells were modeled using optical parameters (absorption coefficients) from the literature. All the solar cell's open circuit voltage (Voc), short circuit current (Isc), maximum power (Pm), fill factor (FF), and photovoltaic efficiencies have been represented in this work. The simulation results may provide valuable insight in developing and better understanding of high-efficiency thin film solar cells.

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“…However, utilization of hydrazine has limited the popularization because of the toxicity and residual of organic solvents in the film [7]. As a result, alternative solution process route using just non-toxic solvents have been reported by several groups [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Cu2ZnSnS4 Thin Films from Ball-Milled Nanoparticle inks under Various Annealing Temperatures

Zhang

Zheng

et al. 2019

Nanomaterials

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Cu2ZnSnS4 (CZTS) has been recognized as a promising thin-film absorber material of chalcopyrite-related solar cells. A two-stage method for fabricating CZTS films using CZTS nanoparticles was developed. Nanocrystal inks fabricated by a ball-milling method was utilized to °C deposit CZTS precursors by spin-coating approach. The CZTS precursors were annealed in the sulfur atmosphere under different annealing temperatures ranging from 550 °C to 650 °C. Influences of annealing temperature on grain growth, composition, crystallinity, and photovoltaic properties of CZTS films were characterized. With the increase of annealing temperature, grain growth was enhanced, while the sulfur atomic ratio fist increased then decreased. The crystallinity of the films was significantly improved after the annealing, and the obvious peak of the secondary phase of ZnS, were observed from the X-ray diffraction results, when the annealing temperature increased to 625 °C. However, the secondary phase was not detected from the surface Raman spectrum. Through comparing the Raman spectrum of different areas of the CZTS film, secondary phases of ZnS and SnS were observed, indicating the decomposition of CZTS films, due to the high temperature. The highest conversion efficiency of 7.5% was obtained when the annealing temperature was 600 °C.

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Towards high-efficiency CZTS solar cell through buffer layer optimization

Cited by 127 publications

References 20 publications

Simulation study to find suitable dopants of CdS buffer layer for CZTS solar cell

Simulation study to find suitable dopants of CdS buffer layer for CZTS solar cell

Simulation of CdTe, CIGS and CZTS Solar Cells using WxAMPS Software

Fabrication of Cu2ZnSnS4 Thin Films from Ball-Milled Nanoparticle inks under Various Annealing Temperatures

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