Synergy of Bis(Sulfanylidene)Tungsten and Spiro-Ometad for an Efficient Perovskite Solar Cell
Srishtee Chaudhary1, Rajesh Mehra2

1Srishtee Chaudhary*, Department of Technical Education (DTE), Punjab Government, Punjab, India.
2Dr. Rajesh Mehra,  Professor and Head Department of Electronics & Communication Engineering, Centre at National Institute of Technical Teachers’ Training & Research, Chandigarh, India.
Manuscript received on September 25, 2019. | Revised Manuscript received on October 20, 2019. | Manuscript published on October 30, 2019. | PP: 4011-4016 | Volume-9 Issue-1, October 2019 | Retrieval Number: A1149109119/2019©BEIESP | DOI: 10.35940/ijeat.A1149.109119
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Abstract: The researchers now days are avid of solar cells despite the efficiency issues. As lead-based halide perovskite exhibit toxic nature alternatives for the anti- toxic perovskite solar cells(PSCs) are gaining much research. Bis(sulfanylidene )tungsten is a toxic free feasible emerging option with direct band gap of value 1.8 eV. Tungsten disulfide is other chemical name of Bis(sulfanylidene)tungsten. In this paper, perovskite solar cell (PSC) with Bis(sulfanylidene)tungsten (WS2 ) as electron transport layer and spiro-OMeTAD as hole transport layer is modelled and simulated using SCAPS software to analyze performance parameters. The device simulations results are compared for comprehensive defect study of WS2 as ETL. With integration of WS2 and spiro-OMeTAD in the perovskite design, the outcomes are proficient enough with 25.96% of PCE, 22.06 mA/cm2 Jsc, 1.280V Voc and 91.76% FF. Launching the batch setup for absorber layer thickness further resulted with competent PCE 27.78%. The outcomes signified that the toxic-free WS2 based PSC can be a prominent upcoming perspective in terms of environmentally pristine nature and capitulate comparative high efficiency.
Keywords: Bis(sulfanylidene)tungsten, Electron transport layer (ETL), Fill factor (FF), hole transport layer(HTL), Perovskite solar cells, Power conversion efficiency (PCE), Spiro-OMeTAD, Tungsten disulfide.