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Effect of intrinsic ZnO thickness on the performance of SnS/CdS-based thin-film solar cells
Yadav Rahul Kumar,Pawar Pravin S.,Neerugatti KrishnaRao Eswar,Nandi Raju,조재유,허재영 한국물리학회 2021 Current Applied Physics Vol.31 No.-
Tin monosulfide (SnS) has promising properties as an absorber material for thin-film solar cells (TFSCs). SnS/ CdS-based TFSCs have the following device structure: SLG/Mo/SnS/CdS/i-ZnO/AZO/Al. The optimization of thickness of intrinsic zinc oxide (i-ZnO) for SnS-absorber layers and its impact on SnS/CdS heterojunction TFSCs has been investigated at different thicknesses ranging from 39 nm to 73 nm. With the increase in thickness of i- ZnO from 39 nm to 45 nm, the overall performance improved. The highest PCE of 3.50% (with VOC of 0.334 V, JSC of 18.9 mA cm 2, and FF of 55.5%) was observed for 45 nm-thick i-ZnO layers. Upon a further increase in the i-ZnO thickness to 73 nm, the device performance deteriorated, indicating that the optimum thickness of the i- ZnO is 45 nm. The device performances were analyzed comprehensively for different i-ZnO thicknesses.
Se Incorporation in VTD-SnS by RTA and Its Influence on Performance of Thin Film Solar Cells
Rahul Kumar Yadav,Yong Tae Kim,Pravin S. Pawar,Jaeyeong Heo 한국태양광발전학회 2022 Current Photovoltaic Research Vol.10 No.2
Planner configuration thin film solar cells (TFSCs) with SnS/CdS heterojunction performed a lower short-circuit current (JSC). In this study, we have demonstrated a path to overcome deficiency in JSC by the incorporation of Se in the SnS absorber. We carried out the incorporation of Se in VTD grown SnS absorber by rapid thermal annealing (RTA). The diffusion of Se is mostly governed by RTA temperature (TRTA), also it is observed that film structure changes from cube-like to plate-like structure with TRTA. The maximum JSC of 23.1 mA cm<SUP>-2</SUP> was observed for 400°C with an open-circuit voltage (VOC) of 0.140 V for the same temperature. The highest performance of 2.21% with JSC of 18.6 mA cm<SUP>-2</SUP>, VOC of 0.290 V, and fill factor (FF) of 40.9% is observed for a TRTA of 300°C. In the end, we compare the device performance of Se- incorporated SnS absorber with pristine SnS absorber material, increment in JSC is approximately 80% while a loss in VOC of about 20% has been observed.
Swapnil Singh THAKUR(Swapnil Singh THAKUR ),Rahul Singh GAUTAM(Rahul Singh GAUTAM ),Ajay Kumar YADAV(Ajay Kumar YADAV ),Hitesh PATOLE(Hitesh PATOLE ),Aashi RAWAL(Aashi RAWAL ),Shailesh RASTOGI(Shailes 한국유통과학회 2023 The Journal of Asian Finance, Economics and Busine Vol.10 No.2
The goal of this study is to understand how financial inclusion (FI) as influenced by Internet subscribers in India, affects India’s Sustainable Development Goals (SDG). This study makes use of secondary data that was collected from 16 Indian states and one Union Territory between the fiscal years of 2018 and 2020. The goal of this study has been investigated using panel data regression analysis (PDR). And the study’s findings indicate that wages received through MNREGA accounts and post office operating accounts under the supervision of Internet subscribers have a significant negative impact on India’s SDGs, demonstrating how financial inclusion is harming the country’s efforts to achieve sustainable development. This study suggests that it is important to pay attention to rural areas’ access to the digital environment and their degree of digital literacy. These findings imply that improving the MGNREGA program and employees’ pay might help the government alleviate poverty in India. Financial inclusion also depends heavily on financial literacy. The government should improve its digital infrastructure in rural and urban areas so that people there may better understand and utilize it given that it promotes financial inclusion, digitalization, economic advancement, rural development, and poverty reduction.