A hole‐transporting layer (HTL)‐free perovskite solar cell (PSC) with fluorine‐doped tin oxide (FTO)/nanocomposite electron‐transporting layer (ETL)/perovskite/Au structure is presented that takes advantage of a novel ternary nanocomposite constructed of zinc oxide (ZnO) nanorods, reduced graphene oxide (RGO), and copper indium sulfide quantum dots (CuInS₂ QDs), as ETL. Concisely, the photoelectric and photovoltaic properties of all the individual, binary, and ternary composites were monitored by using of the photoluminescence (PL) spectroscopy, UV‐visible (vis) spectroscopy, J‐V curves, and incident photon‐to‐current conversion efficiency (IPCE) spectra studies. The comparative values exhibited a noticeable benefit for the ZnO‐RGO5%‐CuInS₂20% ternary nanocomposite as an appropriate ETL for PCS. Also, the comparative structural studies on the individual nanoscale components, binary, and ternary nanocomposite (with different percentages of CuInS₂ QDs) were precisely performed by Fourier transform infrared (FT‐IR), energy‐dispersive X‐ray (EDX), X‐ray diffraction (XRD), Raman spectroscopy, and field emission scanning electron microscopy (FESEM), as well. Overall, after careful optimization of the ETL, a15.74% efficiency was resulted through applying the prepared ZnO‐RGO5%‐CuInS₂20% composite in a HTL‐free PCS with 0.33 cm² active area.

中文翻译：

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高性能，不含HTL的钙钛矿太阳能电池：ZnO NR，RGO和CuInS2 QD的有效组成，可作为电子传输层基质

提出了一种具有氟掺杂氧化锡（FTO）/纳米复合电子传输层（ETL）/钙钛矿/ Au结构的无空穴传输层（HTL）的钙钛矿太阳能电池（PSC），该结构利用了新型三元纳米复合材料的构造氧化锌（ZnO）纳米棒，还原氧化石墨烯（RGO）和硫化铜铟量子点（CuInS ₂ QDs）作为ETL。简而言之，通过使用光致发光（PL）光谱，紫外可见（vis）光谱，J-V曲线和入射光子-电流转换来监视所有单个，二元和三元复合材料的光电性能。效率（IPCE）光谱研究。比较值显示出ZnO‐RGO5％‐CuInS ₂的显着优势20％的三元纳米复合材料可作为PCS的合适ETL。同样，通过傅立叶变换红外（FT-IR），能量色散X射线（EDX），X精确地进行了单个纳米级成分，二元和三元纳米复合材料（具有不同百分比的CuInS ₂ QDs）的比较结构研究。射线衍射（XRD），拉曼光谱和场发射扫描电子显微镜（FESEM）。总体而言，在精心优化了ETL之后，将制备的ZnO-RGO5％-CuInS ₂ 20％复合材料应用到有效面积为0.33 cm ²的无HTL PCS中，可以达到15.74％的效率。