Bulky organic cations engineered lead-halide perovskites: a review on dimensionality and optoelectronic applications. (September 2021)

• Record Type: Journal Article
• Authors: Lee, H.B.; Kumar, N.; Tyagi, B.; He, S.; Sahani, R.; Kang, J.-W.
• Is Part Of: Materials today energy. Volume 21(2021)
• Publication Date: 2021-09
• Subjects: Surface passivation -- Defects -- Solar cells -- Light-emitting diodes -- Stability; Energy development -- Periodicals; Energy industries -- Periodicals; Power resources -- Periodicals; Energy policy -- Periodicals; Energy development; Energy industries; Energy policy; Power resources; Electronic journals; Periodicals; 621.042
• DOI: 10.1016/j.mtener.2021.100759
• Languages: English
• ISSNs: 2468-6069

Abstract

Abstract: Hybrid lead-halide perovskites are widely used in a variety of optoelectronic applications, including perovskite solar cells (PSCs), perovskite light-emitting diodes (PeLEDs), perovskite photodetectors (PPDs), and scintillators. Recently, it was demonstrated that bulky organic cations (BOCs) can be used as surface passivation agents to fine-tune the dimensionality of lead-halide perovskites, making it possible to tailor their optoelectronic properties and enhance their stability. This special feature has further improved the commercialization potential of perovskite-based optoelectronic devices. In this article, we provide a comprehensive review of the recent progress in low/multidimensional perovskites prepared via BOC treatment and their performance in various optoelectronic devices. We begin by introducing the special features and fundamental properties of lead-halide perovskites with different dimensionalities and the working mechanism of BOC treatments. Thereafter, we separately highlight and discuss the device architecture and performance breakthroughs of BOC-treated perovskites in (i) PSCs, (ii) PeLEDs, and (iii) PPDs and scintillators, emphasizing works published from 2018 till now. For each application, the influence of BOC treatments on device performance and stability is discussed. At the end of this review, we provide our insights on future challenges and commercialization opportunities for BOC-treated perovskites in the field of optoelectronics. Graphical abstract: This review paper provides an overview on the use of bulky organic cations (BOC) in the preparation of low/multidimensional perovskite films, and the optoelectronic device application of the BOC-modified perovskites. Image 1 Highlights: Dimensionalities and crystal phases of perovskite films modified with bulky organic cations. Fundamental and optoelectronic properties of low/multidimensional perovskite films. Performance of low/multidimensional perovskites in various optoelectronic devices. Strategies to improve the performance and stability of low/multidimensional perovskites.