在用于太阳能电池应用的原始 CsSnBr3 中掺入还原氧化石墨烯 (rGO) 纳米复合材料后，结构和光学性能得到增强,ACS Applied Electronic Materials

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在用于太阳能电池应用的原始 CsSnBr3 中掺入还原氧化石墨烯 (rGO) 纳米复合材料后，结构和光学性能得到增强
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2023-05-22 , DOI: 10.1021/acsaelm.3c00224
Ajay Kumar ₁ , Nivedita Pandey ₁ , Deepak Punetha _{1,

2} , Rajib Saha ₁ , Subhananda Chakrabarti ₁

Affiliation

金属三卤化物钙钛矿材料因其具有前景和出色的光电性能而受到研究。_{这项研究表明，还原氧化石墨烯 (rGO) 与 CsSnBr 3}钙钛矿形成纳米复合材料，具有制造高效钙钛矿太阳能电池 (PSC) 的潜力。rGO 是一种非常稳定的材料，具有可调的电子特性。因此，rGO 的掺入显示出不一致且不明确的结果。_{原始 CsSnBr 3}和 rGO/CsSnBr ₃的晶体结构纳米复合材料已通过 X 射线衍射 (XRD) 进行了表征。rGO掺入钙钛矿中可以提高光子的吸收，增加表面粗糙度，并影响rGO纳米复合材料的晶体质量。我们通过扫描电子显微镜（SEM）研究了rGO、CsSnBr ₃和rGO纳米复合材料的表面形貌。我们制作了太阳能电池器件，掺入rGO后相应的计算参数得到了相对改善。最佳太阳能电池结果为 3% rGO，获得的参数为功率转换效率 (PCE) 为 5.27%、V _OC为 0.714 V、J _SC为 12.04 mA/cm ²，填充因子 (FF) 为 61.32%。因此，掺入无铅钙钛矿层中的 rGO 在开发未来光伏 (PV) 器件方面表现出非常有前景的特性。

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Enhancement in the Structural and Optical Properties after Incorporation of Reduced Graphene Oxide (rGO) Nanocomposite in Pristine CsSnBr3 for Solar Cell Application

The metal trihalide perovskite material has been studied due to its promising and outstanding optoelectronic properties. This study reveals that reduced graphene oxide (rGO) makes a nanocomposite with CsSnBr₃ perovskite and it has the potential for making efficient perovskite solar cells (PSCs). rGO is a very stable material with tunable electronic properties. For this reason, the incorporation of rGO shows inconsistent and ambiguous results. The crystal structure of the pristine CsSnBr₃ and rGO/CsSnBr₃ nanocomposite has been characterized by X-ray diffraction (XRD). rGO’s incorporation into perovskite improves the absorption of photons, increases the surface roughness, and affects the crystal quality of the rGO nanocomposite. We have studied the surface morphologies of rGO, CsSnBr₃, and rGO nanocomposite material by scanning electron microscopy (SEM). We have fabricated the solar cell device, and the corresponding calculated parameters are improved relatively after rGO incorporation. The best solar cell results are found for 3% rGO and the parameters are obtained to be a power conversion efficiency (PCE) of 5.27%, V_OC of 0.714 V, J_SC of 12.04 mA/cm², and fill factor (FF) of 61.32%. Therefore, rGO incorporated in a lead-free perovskite layer demonstrates highly promising properties for developing futuristic photovoltaic (PV) devices.

更新日期：2023-05-22

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