Defects and Defect Passivation in Perovskite Solar Cells

Molecules, Journal Year: 2024, Volume and Issue: 29(9), P. 2104 - 2104

Published: May 2, 2024

Perovskite solar cells have made significant strides in recent years. However, there are still challenges terms of photoelectric conversion efficiency and long-term stability associated with perovskite cells. The presence defects materials is one the important influencing factors leading to subpar film quality. Adopting additives passivate within an effective approach. Therefore, we first discuss types that occur mechanisms their effect on performance. Then, several used discussed, including ionic compounds, organic molecules, polymers, etc. This review provides guidance for future development more sustainable improve performance

Language: Английский

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Encapsulation engineering of porous crystalline frameworks for delayed luminescence and circularly polarized luminescence

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(13), P. 6694 - 6734

Published: Jan. 1, 2024

Delayed luminescence (DF), including phosphorescence and thermally activated delayed fluorescence (TADF), circularly polarized (CPL) exhibit common broad application prospects in optoelectronic displays, biological imaging, encryption. Thus, the combination of is attracting increasing attention. The encapsulation guest emitters various host matrices to form host-guest systems has been demonstrated be an appealing strategy further enhance and/or modulate their luminescence. Compared with conventional liquid crystals, polymers, supramolecular matrices, porous crystalline frameworks (PCFs) metal-organic (MOFs), covalent-organic (COFs), zeolites hydrogen-bonded organic (HOFs) can not only overcome shortcomings such as flexibility disorder but also achieve ordered guests long-term stability chiral structures, providing new promising platforms for development DF CPL. In this review, we provide a comprehensive critical summary recent progress photochemistry

Language: Английский

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Particle‐Based Photoelectrodes for PEC Water Splitting: Concepts and Perspectives

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)

Published: April 15, 2024

Abstract This comprehensive review delves into the intricacies of photoelectrochemical (PEC) water splitting process, specifically focusing on design, fabrication, and optimization particle‐based photoelectrodes for efficient green hydrogen production. These photoelectrodes, composed semiconductor materials, potentially harness light energy generate charge carriers, driving oxidation reduction reactions. The versatility as a platform investigating enhancing various candidates is explored, particularly emerging complex oxides with compelling transfer properties. However, challenges presented by many factors influencing performance stability these including particle size, shape, composition, morphology, surface modification, electrode configuration, are highlighted. introduces fundamental principles PEC splitting, presents an exhaustive overview different synthesis methods powders their assembly discusses recent advances in photoelectrode material development. It concludes offering promising strategies improving stability, such adoption novel architectures heterojunctions.

Language: Английский

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A Multifunctional Dye Molecule as the Interfacial Layer for Perovskite Solar Cells

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(17), P. 22079 - 22088

Published: April 19, 2024

In perovskite solar cells (PSCs), defects in the interface and mismatched energy levels can damage device performance. Improving quality is an effective way to achieve efficient stable PSCs. this work, a multifunctional dye molecule, named ThPCyAc, was designed synthesized be introduced perovskite/HTM interface. On one hand, various functional groups on acceptor unit act as Lewis base reduce defect density suppress nonradiative combinations. other stepwise energy-level alignment caused by ThPCyAc decreases accumulation of carriers for facilitating charge extraction transmission. Therefore, based devices exhibit elevated open-circuit voltage fill factor, resulting best power conversion efficiency (PCE) 23.16%, outperforming control sample lacking layer (PCE = 21.49%). Excitingly, when attempting apply it self-assembled inverted devices, still exhibits attractive behavior. It worth noting that these results indicate molecules have great potential developing materials obtain higher-performance

Language: Английский

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A Review of Perovskite/Copper Indium Gallium Selenide Tandem Solar Cells

Solar RRL, Journal Year: 2024, Volume and Issue: 8(21)

Published: March 14, 2024

In recent years, perovskite solar cells (PSCs) have emerged as a focal point for numerous researchers due to their excellent photoelectric performance. comparison single‐junction devices, double‐junction exhibited the potential superior power conversion efficiency (PCE). Copper indium gallium selenide (CIGS) cells, well‐established photovoltaic technology, can be used viable bottom cell candidate tandem (TSCs). Recently, PCE of most advanced 4T perovskite/CIGS TSCs reached 29.9%, while highest 2T TSC is 24.2%, which develops relatively slowly. contrast leading perovskite/silicon (Si) in terms (PCE = 33.9%, 30.35%), exhibit distinctive advantages such adjustable bandgap, high absorption coefficient, radiation resistance, and prepared on flexible substrates. Building upon these advantages, optimization process four‐terminal two‐terminal elucidated, key technologies challenges material, structure, performance are summarized, prospective analysis future overall development this review provided. Furthermore, it hoped give readers comprehensive understanding TSCs.

Language: Английский

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