Halide perovskites show ubiquitous presences in growing fields at both fundamental and applied levels. Discovery, investigation, and application of innovative perovskites are heavily dependent on the synthetic methodology in terms of time-/yield-/effort-/energy- efficiency. Conventional wet chemistry method provides the easiness for growing thin film samples, but represents as an inefficient way for bulk crystal synthesis. To overcome these, here we report a universal solid state-based route for synthesizing high-quality perovskites, by means of simultaneously applying both electric and mechanical stress fields during the synthesis, i.e., the electrical and mechanical field-assisted sintering technique. We employ various perovskite compositions and arbitrary geometric designs for demonstration in this report, and establish such synthetic route with uniqueness of ultrahigh yield, fast processing and solvent-free nature, along with bulk products of exceptional quality approaching to single crystals. We exemplify the applications of the as-synthesized perovskites in photodetection and thermoelectric as well as other potentials to open extra chapters for future technical development.

卤化物钙钛矿在基础和应用层面的生长领域中无处不在。创新钙钛矿的发现、调查和应用在很大程度上取决于时间/产量/努力/能量效率方面的合成方法。传统的湿化学方法为薄膜样品的生长提供了便利，但对于块状晶体合成来说是一种低效的方法。为了克服这些问题，我们在这里报告了一种通用的基于固态的合成高质量钙钛矿的途径，通过在合成过程中同时应用电场和机械应力场，即电场和机械场辅助烧结技术。我们在本报告中采用各种钙钛矿成分和任意几何设计进行演示，并建立具有超高收率、快速加工、无溶剂等独特性的合成路线，以及质量接近单晶的大块产品。我们举例说明了合成后的钙钛矿在光电探测和热电以及其他潜力方面的应用，为未来的技术发展打开了额外的篇章。