Transparent photovoltaic device shows great potential in future, and interfacial quantum dots transition layer with high quantum yield and appropriate potential transition provides new sights. Self-cleaning transparent device in LaCrO3 quantum dots (QDs)-surface plasma (SP) synergistically modified ZnCo2O4/LaAlO3 pn junction is prepared via sol–gel-hydrothermal-freeze drying-annealing-surface plasma method. ZnCo2O4/LaCrO3 QDs/LaAlO3 device exhibits a transparency of approximately 85 % and a photovoltaic enhancement by a factor of approximately 4.1 × 10−3 (power conversion efficiency of ∼1.24 %), stable output over 5 months and good self-cleaning via hydrophobicity (contact angle ∼121.6°). It’s mainly attributed to LaCrO3 QDs-SP synergetic modification. Besides appropriate potential and high quantum yield, LaCrO3 QDs can improve kinetic equilibrium for transparency-PCE balance through increased p-type conductivity by the synergism of Cr2+/Cr3+–Co2+/Co3+ mixed state. Moreover, SP modification can enhance solar and carrier efficiency via surface optimization, meanwhile achieving self-cleaning via its hydrophobicity, including providing surface passivation to maintain structural stability for actual applications.

中文翻译：

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通过界面钙钛矿 LaCrO3 量子点和表面等离子体协同改性在 ZnCo2O4/LaAlO3 pn 结中自清洁透明光伏器件


透明光伏器件在未来显示出巨大的潜力，具有高量子产率和适当电位转变的界面量子点过渡层提供了新的前景。采用溶胶-凝胶-水热-冷冻干燥-退火-表面等离子体法制备了LaCrO ₃ 量子点（QDs）-表面等离子体（SP）协同改性ZnCo ₂ O ₄ /LaAlO ₃ pn结中的自清洁透明器件。ZnCo ₂ O ₄ /LaCrO ₃ QDs/LaAlO ₃ 器件具有约 85% 的透明度和约 4.1 × 10 倍的光伏增强 ⁻³ （功率转换效率 ∼1.24%），输出稳定 5 个月，并通过疏水性（接触角 ∼121.6°）具有良好的自清洁性。它主要归因于 LaCrO ₃ QDs-SP 协同修饰。除了适当的电位和高量子产率外，LaCrO ₃ QD 还可以通过 Cr ²⁺ /Cr ³⁺ –Co ²⁺ /Co ³⁺ 混合态的协同作用增加 p 型电导率来改善透明度-PCE 平衡的动力学平衡。此外，SP 改性可以通过表面优化来提高太阳能和载流子效率，同时通过其疏水性实现自清洁，包括提供表面钝化以保持实际应用的结构稳定性。