科学通识与工程精读·英语30篇（1）
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Why Perovskite Solar Cells Exhibit Rapid Efficiency Gains Yet Face Stability Challenges
为何钙钛矿太阳能电池效率迅速提升却面临稳定性挑战
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Perovskite photovoltaics achieved 26.1% lab efficiency in under a decade—surpassing silicon’s historical trajectory—due to tunable bandgaps and defect-tolerant crystal structures.钙钛矿光伏电池在不到十年内实验室效率达26.1%，超越硅基电池历史发展轨迹，得益于可调带隙与缺陷容忍型晶体结构。
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However, operational stability remains limited by ion migration under electric fields, moisture-induced lattice decomposition, and thermal phase segregation.然而，其运行稳定性仍受限于电场诱导的离子迁移、湿气导致的晶格分解及热致相分离。
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Encapsulation strategies now prioritize atomic-layer deposition of Al₂O₃ barriers over polymer films—reducing water vapor transmission rates to <10⁻⁶ g/m²/day.当前封装策略优先采用原子层沉积Al₂O₃阻隔层，替代聚合物薄膜，使水蒸气透过率降至<10⁻⁶ g/m²/天。
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Industrial scaling introduces new failure modes: solvent residue from blade-coating processes accelerates interfacial degradation at module edges.产业化放大引入新失效模式：刮涂工艺残留溶剂加速组件边缘界面退化。
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Accelerated lifetime testing protocols combine thermal cycling, UV exposure, and maximum-power-point stress—revealing failure mechanisms absent in single-junction validation.加速寿命测试协议融合热循环、紫外辐照与最大功率点应力，揭示单结器件验证中未显现的失效机制。
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Grid integration studies show perovskite–silicon tandem modules improve levelized cost of electricity by 18% despite 20% higher initial manufacturing cost.并网应用研究表明，钙钛矿–硅叠层组件虽制造成本高20%，但平准化度电成本降低18%。
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Supply chain constraints center on lead-free alternatives: tin-based perovskites offer eco-compatibility but suffer rapid oxidation without inert-atmosphere processing.供应链瓶颈集中于无铅替代方案：锡基钙钛矿具生态友好性，但若不依赖惰性气氛加工则迅速氧化。
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Building-integrated PV applications favor semi-transparent perovskite cells, where stability correlates more strongly with UV-filtering interlayers than bulk composition.建筑一体化光伏倾向采用半透明钙钛矿电池，其稳定性更取决于紫外滤光中间层，而非体相成分。
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Regulatory frameworks lag behind innovation—no IEC standard yet addresses perovskite-specific degradation pathways like halide segregation.监管框架滞后于技术创新——尚无IEC标准专门涵盖卤素偏析等钙钛矿特有退化路径。
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Cross-sector collaboration between photovoltaic researchers and semiconductor reliability engineers is closing knowledge gaps in ion diffusion kinetics.光伏研究人员与半导体可靠性工程师跨领域协作，正弥合离子扩散动力学方面的知识缺口。
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This duality—breakthrough efficiency versus systemic durability—mirrors earlier transitions in OLED and lithium-ion technologies.这种效率突破与系统耐久性之间的张力，恰如早年OLED与锂离子电池技术演进历程。
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Success hinges not on incremental material tweaks but on co-designing optoelectronic properties, encapsulation physics, and system-level reliability metrics.成功关键不在材料的渐进式优化，而在于光电特性、封装物理与系统级可靠性指标的协同设计。