The latest progress and future perspectives of thin film photovoltaic kesterite technology are reviewed herein. Kesterite is currently the most promising emerging fully inorganic thin film photovoltaic technology based on critical raw‐material‐free and sustainable solutions. The positioning of kesterites in the frame of the emerging inorganic solar cells is first addressed, and the recent history of this family of materials briefly described. A review of the fast progress achieved earlier this decade is presented, toward the relative slowdown in the recent years partly explained by the large open‐circuit voltage (V_OC) deficit recurrently observed even in the best solar cell devices in the literature. Then, through a comparison with the close cousin Cu(In,Ga)Se₂ technology, doping and alloying strategies are proposed as critical for enhancing the conversion efficiency of kesterite. In the second section herein, intrinsic and extrinsic doping, as well as alloying strategies are reviewed, presenting the most relevant and recent results, and proposing possible pathways for future implementation. In the last section, a review on technological applications of kesterite is presented, going beyond conventional photovoltaic devices, and demonstrating their suitability as potential candidates in advanced tandem concepts, photocatalysis, thermoelectric, gas sensing, etc.

中文翻译：

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薄膜钾钛矿光伏技术的进展与展望：综述。

本文综述了薄膜光伏钾钛矿技术的最新进展和未来前景。基于关键的无原材料和可持续解决方案，Kesterite是目前最有前途的新兴完全无机薄膜光伏技术。首先讨论了在新兴的无机太阳能电池框架中钾钛矿的定位，并简要介绍了这一系列材料的最新历史。本文对近十年来取得的快速进展进行了回顾，对近年来的相对放缓作了部分解释，即使在文献中最好的太阳能电池设备中也经常出现大的开路电压（V _OC）不足。然后，通过与近亲表亲Cu（In，Ga）Se _2的比较提出了一种技术，掺杂和合金化策略，对于提高硅藻土的转化效率至关重要。在本文的第二部分中，对本征和非本征掺杂以及合金化策略进行了概述，提出了最相关和最新的结果，并提出了未来实施的可能途径。在最后一部分中，介绍了对硅藻土的技术应用的回顾，超越了常规的光伏设备，并证明了它们在高级串联概念，光催化，热电，气体传感等方面的潜在候选者的适用性。