Quantum dot sensitized solar cells using type-II CdSe-Cu2Se core-shell QDs

Simi, N. J.; Bernadsha, S. Bharathi; Thomas, Ajith; Ison, V. V.

doi:10.1016/j.rio.2021.100088

Cited by 6 publications

(1 citation statement)

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“…This structure is beneficial for exciton dissociation. [ 62 ] In type III, the core has a wider bandgap than the shell, which is just the reverse of type I.…”

Section: Intrinsic Properties Of Colloidal Pvk Nanocrystalsmentioning

confidence: 99%

Perovskite Colloidal Nanocrystal Solar Cells: Current Advances, Challenges, and Future Perspectives

Yang,

Jo,

Lee

2024

Advanced Materials

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The power conversion efficiencies (PCEs) of polycrystalline perovskite (PVK) solar cells (SCs) (PC‐PeSCs) have been rapidly increased. However, PC‐PeSCs are intrinsically unstable without encapsulation, and their efficiency drops during large‐scale production; these problems hinder the commercial viability of PeSCs. Stability can be increased by using colloidal PVK nanocrystals (c‐PeNCs), which have high surface strains, low defect density, and exceptional crystal quality. Use of c‐PeNCs separates the crystallization process from film formation process, which is preponderant in large‐scale fabrication. Consequently, use of c‐PeNCs has substantial potential to overcome challenges encountered when fabricating PC‐PeSCs. Research on colloidal nanocrystal‐based PVK SCs (NC‐PeSCs) has increased their PCEs to the level greater than those of other quantum‐dot SCs, but has not reached the PCEs of PC‐PeSCs; this inferiority significantly impedes widespread application of NC‐PeSCs. This review at first introduces the distinctive properties of c‐PeNCs, then the strategies that have been used to achieve high‐efficiency NC‐PeSCs. Then it discusses in detail the persisting challenges in this domain. Specifically, the major challenge and solutions for NC‐PeSCs related to low short‐circuit current density Jsc are covered. Lastly, the article presents a perspective on future research directions and potential applications in the realm of NC‐PeSCs.This article is protected by copyright. All rights reserved

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“…This structure is beneficial for exciton dissociation. [ 62 ] In type III, the core has a wider bandgap than the shell, which is just the reverse of type I.…”

Section: Intrinsic Properties Of Colloidal Pvk Nanocrystalsmentioning

confidence: 99%