Research on perovskite solar cells is currently at a high level of activity and many types of special solar architectures have been derived. The fiber-shaped perovskite solar cell (FPSC) is one very important type of these architectures, as it could be a potential power source of portable/wearable electronics. For the first time, we introduce lead acetate as the lead source to improve the perovskite film morphology on highly curved fiber substrates and then enhance the FPSC performance. A large grain size and uniform perovskite film could be obtained via a simple dip-coating process. The FPSCs achieved a PCE of 7.53% and V_OC of 0.96 V under AM 1.5 illumination. This non-halide lead source could promote the development of efficient and large-sized devices with solid fiber solar cells.

中文翻译：

---

基于醋酸铅前体的高性能纤维状钙钛矿太阳能电池

钙钛矿太阳能电池的研究目前处于高水平的活动中，并且已经衍生出许多类型的特殊太阳能架构。纤维状钙钛矿太阳能电池（FPSC）是这些架构中的一种非常重要的类型，因为它可能是便携式/可穿戴电子设备的潜在电源。我们首次引入乙酸铅作为铅源，以改善高弯曲度纤维基材上的钙钛矿膜形态，然后提高FPSC性能。通过简单的浸涂工艺可以获得大晶粒尺寸和均匀的钙钛矿薄膜。FPSC实现了7.53％的PCE和V _OC在AM 1.5照度下为0.96 V. 这种非卤化物铅源可以促进具有固体纤维太阳能电池的高效，大型设备的开发。