美国得克萨斯大学奥斯汀分校Weiguang Chi团队报道了钙钛矿型量子点作为吸收体在钙钛矿型太阳电池中的应用。相关研究成果于2021年11月3日发表于国际一流学术期刊《德国应用化学》。

钙钛矿量子点（QD）由于其量子限制效应，保持了钙钛矿体材料的吸引力，并呈现出额外的优势，从而使其可作为钙钛矿太阳能电池的吸收体。

该文从纯化、器件制作、光吸收、电荷输运和稳定性等方面分析了钙钛矿量子点存在的问题和优点。此外，基于交换化学（离子和配体交换）、钝化工程（离子和配体钝化）和结构工程（传统/倒置、平面/介观和尺寸梯度结构），阐明了增强钙钛矿量子点和量子点太阳能电池的有希望的策略。所有这些讨论将为钙钛矿量子点的进一步发展以及量子点太阳能电池的发展提供线索。

附：英文原文

Title: Application of Perovskite Quantum Dots as Absorber for Perovskite Solar Cell

Author: Weiguang Chi, Sanjay Banerjee

Issue&Volume: 2021-11-03

Abstract: Perovskite quantum dots (QDs) preserve the attractive properties of perovskite bulk materials and present additional advantages, owing to their quantum confinement effect, leading to their applicability as an absorber in perovskite solar cells. In this article, the issues and advantages of perovskite QDs are analyzed in terms of purification, device fabrication with perovskite QDs, light absorption, charge transport and stability. In addition, promising strategies to enhance perovskite QDs and QD-based solar cells are elucidated based on exchange chemistry (ion and ligand exchange), passivation engineering (ion and ligand passivation) and structure engineering (conventional/inverted, planar/mesoscopic and dimensionally graded structures). All these discussions will give a clue to the further development of perovskite QDs and thus the advancement of QD-based solar cells.

DOI: 10.1002/anie.202112412

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202112412