Scholarlink

<p>The present investigation delved into examining the myriad factors influencing the efficacy of double-layered FAPbI<sub>3</sub> and MAPbI<sub>3</sub> perovskite solar cells (PSCs) utilizing the SCAPS-1D simulation tool. The fundamental device scrutinized in this study adhered to a configuration of FTO/SnO<sub>2</sub>/FAPbI<sub>3</sub>/MAPbI<sub>3</sub>/CsSnI<sub>3</sub>/Au. Parameters such as thickness, electron affinity, doping density, and defect density of each layer (electron transport layer [ETL], perovskite absorption layers [PAL], and hole transport layer [HTL]) were meticulously investigated and optimized. The optimized parameters resulting in the highest light conversion efficiency included an ETL (SnO<sub>2</sub>) thickness of 40&#xa0;nm, FAPbI<sub>3</sub> thickness of 300&#xa0;nm, MAPbI<sub>3</sub> thickness of 350&#xa0;nm, an HTL (CsSnI<sub>3</sub> ) thickness of 40&#xa0;nm, electron affinity in SnO<sub>2</sub> of 3.90&#xa0;eV, electron affinity in FAPbI<sub>3</sub> of 4.06&#xa0;eV, electron affinity in MAPbI<sub>3</sub> of 3.60&#xa0;eV, and electron affinity in CsSnI<sub>3</sub> of 4.20&#xa0;eV. Furthermore, a defect density of 10<sup>10</sup>&#xa0;cm<sup>−3</sup> was observed in both FAPbI<sub>3</sub> and MAPbI<sub>3</sub> layers. The most favorable simulation outcome, achieving power conversion efficiency (PCE) of 28.06%, was accompanied by an open-circuit voltage (<i>V</i><sub>OC</sub>) of 1.2667&#xa0;V, a short-circuit current (<i>J</i><sub>SC</sub>) of 24.74&#xa0;mA&#xa0;cm<sup>−2</sup>, and a fill factor (FF) of 89.55% for the proposed FTO/SnO<sub>2</sub>/FAPbI<sub>3</sub>/MAPbI<sub>3</sub>/CsSnI<sub>3</sub>/Au structure. Additionally, the proposed structure exhibited commendable thermal stability at 300&#xa0;K. These findings are anticipated to significantly contribute to the optimization and enhancement of perovskite solar cell efficiency.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Perovskite Solar Cells, Featuring a Double Layer of FAPbI3 and MAPbI3, with CsSnI3 as the Hole Transport Layer, Achieved Remarkable Efficiency and Stability of 28.06%

  • 期刊论文

  • 发表日期：

    2025年1月3日

查看全文
  • K. C. Dubey,
  • Anchal Srivastava,
  • Navina Wadhwani,
  • R. K. Shukla

摘要

The present investigation delved into examining the myriad factors influencing the efficacy of double-layered FAPbI3 and MAPbI3 perovskite solar cells (PSCs) utilizing the SCAPS-1D simulation tool. The fundamental device scrutinized in this study adhered to a configuration of FTO/SnO2/FAPbI3/MAPbI3/CsSnI3/Au. Parameters such as thickness, electron affinity, doping density, and defect density of each layer (electron transport layer [ETL], perovskite absorption layers [PAL], and hole transport layer [HTL]) were meticulously investigated and optimized. The optimized parameters resulting in the highest light conversion efficiency included an ETL (SnO2) thickness of 40 nm, FAPbI3 thickness of 300 nm, MAPbI3 thickness of 350 nm, an HTL (CsSnI3 ) thickness of 40 nm, electron affinity in SnO2 of 3.90 eV, electron affinity in FAPbI3 of 4.06 eV, electron affinity in MAPbI3 of 3.60 eV, and electron affinity in CsSnI3 of 4.20 eV. Furthermore, a defect density of 1010 cm−3 was observed in both FAPbI3 and MAPbI3 layers. The most favorable simulation outcome, achieving power conversion efficiency (PCE) of 28.06%, was accompanied by an open-circuit voltage (VOC) of 1.2667 V, a short-circuit current (JSC) of 24.74 mA cm−2, and a fill factor (FF) of 89.55% for the proposed FTO/SnO2/FAPbI3/MAPbI3/CsSnI3/Au structure. Additionally, the proposed structure exhibited commendable thermal stability at 300 K. These findings are anticipated to significantly contribute to the optimization and enhancement of perovskite solar cell efficiency.