ABSTRACT

Perovskite solar cells (PSCs), one of the third-generation photovoltaic (PV) technologies, have recently become a very popular topic in photovoltaic research. This technology, which is a candidate for commercialization in the future, needs to be evaluated from an environmental point of view. The amount of electricity consumption is the most important factor that directly determines the environmental impact values of photovoltaic cell manufacturing. Transparent conductive oxide (TCO) coated glass is one of the major contributors to electricity consumption in PSC architecture. It is therefore useful to investigate the environmental profile of TCO coated glass-free PSC architecture with conventional PVs. One of the solutions to this issue is manufacturing PSC on a flexible substrate. Flexible PVs are considered to be one of the most promising candidates for mass production with its advantages of low-temperature manufacturing, higher efficiency with a lower weight, portability, and compatibility with a roll to roll fabrication. In this work, we show that the environmental impacts of a representative PSCs with a flexible substrate. While the energy payback time (EPBT) of the flexible PSC is already competitive with commercial PVs, the device must reach a 25-year cell lifetime for its global warming potential (GWP) to reach a reasonable range.

摘要

钙钛矿太阳能电池 (PSC) 是第三代光伏 (PV) 技术之一，最近已成为光伏研究中非常热门的话题。这项技术是未来商业化的候选技术，需要从环境的角度进行评估。用电量是直接决定光伏电池制造环境影响值的最重要因素。透明导电氧化物 (TCO) 涂层玻璃是 PSC 架构中耗电量的主要来源之一。因此，研究具有传统 PV 的 TCO 涂层无玻璃 PSC 架构的环境特征非常有用。该问题的解决方案之一是在柔性基板上制造 PSC。柔性光伏被认为是最有前途的大规模生产候选者之一，其优点是低温制造、效率更高、重量更轻、便携性以及与卷对卷制造的兼容性。在这项工作中，我们展示了具有柔性基板的代表性 PSC 对环境的影响。虽然柔性 PSC 的能量回收时间 (EPBT) 已经可以与商业 PV 竞争，但该设备必须达到 25 年的电池寿命，才能使其全球变暖潜能值 (GWP) 达到合理范围。