Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, United States of America.
PLoS One. 2020 Mar 19;15(3):e0230299. doi: 10.1371/journal.pone.0230299. eCollection 2020.
In this review, we highlight the current advancements in the field of triplet sensitization by three-dimensional (3D) perovskite nanocrystals and bulk films. First introduced in 2017, 3D perovskite sensitized upconversion (UC) is a young fast-evolving field due to the tunability of the underlying perovskite material. By tuning the perovskite bandgap, visible-to-ultraviolet, near-infrared-to-visible or green-to-blue UC has been realized, which depicts the broad applicability of this material. As this research field is still in its infancy, we hope to stimulate the field by highlighting the advantages of these perovskite nanocrystals and bulk films, as well as shedding light onto the current drawbacks. In particular, the keywords toxicity, reproducibility and stability must be addressed prior to commercialization of the technology. If successful, photon interconversion is a means to increase the achievable efficiency of photovoltaic cells beyond its current limits by increasing the window of useable wavelengths.
在这篇综述中，我们重点介绍了三维（3D）钙钛矿纳米晶体和体膜中三重态敏化的最新进展。三维钙钛矿敏化上转换（UC）于 2017 年首次引入，由于底层钙钛矿材料的可调谐性，它是一个快速发展的新兴领域。通过调整钙钛矿能带隙，可以实现从可见光到紫外光、近红外到可见光或绿到蓝的上转换，这说明了这种材料的广泛适用性。由于这个研究领域还处于起步阶段，我们希望通过强调这些钙钛矿纳米晶体和体膜的优势，并指出当前的缺点，来激发该领域的研究。特别是，在该技术实现商业化之前，必须解决毒性、重现性和稳定性等关键词。如果成功，光子转换是一种手段，可以通过增加可用波长的窗口来提高光伏电池的效率，使其超过当前的限制。
