Antimony selenide (Sb₂Se₃) emerges as a promising sunlight absorber in thin film photovoltaic applications due to its excellent light absorption properties and carrier transport behavior, attributed to the quasi-one-dimensional Sb₄Se₆-nanoribbon crystal structure. Overcoming the challenge of aligning Sb₂Se₃-nanoribbons normal to substrates for efficient photogenerated carrier extraction, we employed a solution-processed nanocrystalline Sb₂(S,Se)₃-seeds on the CdS buffer layer. These seeds facilitated superstrated Sb₂Se₃ thin film solar cell growth through a close-space sublimation approach. The Sb₂(S,Se)₃-seeds guided the Sb₂Se₃ absorber growth along a [002]-preferred crystal orientation, ensuring a smoother interface with the CdS window layer. Remarkably, Sb₂(S,Se)₃-seeds improved carrier transport, reduced series resistance, and increased charge recombination resistance, resulting in an enhanced power conversion efficiency of 7.52%. This cost-effective solution-processed seeds planting approach holds promise for advancing chalcogenide-based thin film solar cells in large-scale manufacturing.

中文翻译：

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用于高效太阳能电池的溶液处理 Sb2(S, Se)3 种子辅助 Sb2Se3 薄膜生长

硒化锑（Sb ₂ Se ₃）由于其准一维Sb ₄ Se ₆纳米带晶体结构而具有优异的光吸收性能和载流子传输行为，因此成为薄膜光伏应用中很有前途的阳光吸收剂。为了克服将 Sb ₂ Se ₃纳米带垂直于基底排列以实现高效光生载流子提取的挑战，我们在 CdS 缓冲层上采用了溶液处理的纳米晶 Sb ₂ (S,Se) _{3 晶}种。这些种子通过近距离升华方法促进了超层Sb ₂ Se ₃薄膜太阳能电池的生长。 Sb ₂ (S,Se) _{3 晶}种引导Sb ₂ Se ₃吸收体沿着[002]-优选晶体方向生长，确保与CdS窗口层的更平滑的界面。值得注意的是，Sb ₂ (S,Se) ₃种子改善了载流子传输，降低了串联电阻，并增加了电荷复合电阻，从而使功率转换效率提高了7.52%。这种经济高效的溶液处理种子种植方法有望推动硫属化物薄膜太阳能电池的大规模制造。