Crystalline grain engineered CsPbIBr2 films for indoor photovoltaics

Ghosh, Paheli; Bruckbauer, Jochen; Trager-Cowan, C.; Jagadamma, Lethy Krishnan

doi:10.1016/j.apsusc.2022.152865

Cited by 11 publications

(7 citation statements)

References 52 publications

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“…20 Previously the authors have reported CsPbBr 2 I-based perovskite composition for indoor photovoltaics. 21 CsPbBr 2 I also suffers phase instability under ambient air conditions (due to a lower tolerance factor of ∼0.8) and yielded a steady state PCE of only about 9% under indoor lighting. The mixed cation (FA/Cs and FA/Cs/MA) perovskite compositions mostly require 30–60 minutes of thermal annealing and can cause the escape of Cl from the perovskite composition unless complex fabrication procedures as reported by Xu et al 18 are followed which in turn can lead to issues with the reproducibility of perovskite active layer preparation and properties.…”

Section: Introductionmentioning

confidence: 99%

Chlorine retention enables the indoor light harvesting of triple halide wide bandgap perovskites

et al. 2023

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Section: Introductionmentioning

confidence: 99%

Chlorine retention enables the indoor light harvesting of triple halide wide bandgap perovskites

et al. 2023

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“…Recent EBSD measurements with LHPs have shown that greater misorientation results in increased nonradiative recombination. 148,149 Similar investigations with Cu-Ag-Bi-I can reveal the true size of grains (as opposed to assuming that the microstructure found in SEM images are grains), and guide the optimisation of film processing to improve optoelectronic properties.…”

Section: Important Fundamental Questionsmentioning

confidence: 99%

Progress and applications of (Cu–)Ag–Bi–I semiconductors, and their derivatives, as next-generation lead-free materials for photovoltaics, detectors and memristors

Zhu,

Turkevych,

Lohan

et al. 2024

International Materials Reviews

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The search for efficient but inexpensive photovoltaics over the past decade has been disrupted by the advent of lead-halide perovskite solar cells. Despite impressive rises in performance, the toxicity and stability concerns of these materials have prompted a broad, interdisciplinary community across the world to search for lead-free and stable alternatives. A set of such materials that have recently gained attention are semiconductors in the CuI–AgI–BiI3 phase space and their derivatives. These materials include ternary silver bismuth iodide compounds (Ag aBi bI a+3 b), ternary copper bismuth iodide Cu–Bi–I compounds and quaternary Cu–Ag–Bi–I materials, as well as analogues with Sb substituted into the Bi site and Br into the I site. These compounds are comprised of a cubic close-packed sub-lattice of I, with Ag and Bi occupying octahedral holes, while Cu occupies tetrahedral holes. The octahedral motifs adopted by these compounds are either spinel, CdCl2-type, or NaVO2-type. NaVO2-type Ag aBi bI a+3 b compounds are also known as rudorffites. Many of these compounds have thus far demonstrated improved stability and reduced toxicity compared to halide perovskites, along with stable bandgaps in the 1.6–1.9 eV range, making them highly promising for energy harvesting and detection applications. This review begins by discussing the progress in the development of these semiconductors over the past few years, focusing on their optoelectronic properties and process–property–structure relationships. Next, we discuss the progress in developing Ag–Bi–I and Cu–Bi–I compounds for solar cells, indoor photovoltaics, photodetectors, radiation detectors and memristors. We conclude with a discussion of the critical fundamental questions that need to be addressed to push this area forward, and how the learnings from the wider metal-halide semiconductor field can inform future directions.

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“…The intensity of the indoor light source is three orders of magnitude lower than that of AM 1.5G, thus leading to a lower concentration of photogenerated carriers, where a higher concentration of carriers are trapped relative to photogenerated carrier ratios. [63][64][65] In addition, it has been reported that abundant defects are formed due to the rapid crystal growth from the solution process of perovskite films, which may cause notorious nonradiative recombination and thus lower the device performance (Fig. 5a).…”

Section: Film Engineering Of Perovskitesmentioning

confidence: 99%

Perspectives for the conversion of perovskite indoor photovoltaics into IoT reality

Zhu

Cen

et al. 2023

Nanoscale

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Crystalline grain engineered CsPbIBr2 films for indoor photovoltaics

Cited by 11 publications

References 52 publications

Chlorine retention enables the indoor light harvesting of triple halide wide bandgap perovskites

Chlorine retention enables the indoor light harvesting of triple halide wide bandgap perovskites

Progress and applications of (Cu–)Ag–Bi–I semiconductors, and their derivatives, as next-generation lead-free materials for photovoltaics, detectors and memristors

Perspectives for the conversion of perovskite indoor photovoltaics into IoT reality

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