Self-assembled molecules as selective contacts for efficient and stable perovskite solar cells

Li, Wenhui; Martínez-Ferrero, Eugenia; Palomares, Emilio

doi:10.1039/d3qm01017a

Cited by 17 publications

(2 citation statements)

References 56 publications

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“…85,112,113 Eminent research groups reviewed the development and prospects of organic HSMs for p-i-n PSCs in recent years. 84,112–121 As most of the organic HSMs incorporated phenylamine derivatives as donor units, understanding the influence of the different types of central core structural units in determining photovoltaic and stability performance will provide important information for selecting core units in future HSM molecular design for p-i-n PSCs. However, so far, comprehensive analyses of these central core units for p-i-n PSCs are limited in the literature.…”

Section: Introductionmentioning

confidence: 99%

Structural divergence of molecular hole selective materials for viable p-i-n perovskite photovoltaics: a comprehensive review

Ganesan,

Nazeeruddin,

Gao

2024

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Structural divergence of molecular hole selective materials for viable p-i-n perovskite photovoltaics: a comprehensive review

Ganesan,

Nazeeruddin,

Gao

2024

J. Mater. Chem. A

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“…Overall, SAMs influence the morphology of the perovskite layer, the charge transport kinetics, and the stability of the devices. [8] Many SAMs have been developed and employed as hole-selective contacts in iPSCs. [9][10][11][12][13][14] These applications encompass interfacial studies at the substrate/SAM, to enhance hole-extraction efficiency.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Interactions at the Interface: Tailoring Carbazole‐Based Self‐Assembled Molecules with Varying Functional Groups for Enhancing the Performance of Inverted Perovskite Solar Cells

González,

Puerto Galvis,

et al. 2024

Solar RRL

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Four different carbazole‐based self‐assembled molecules with different terminal groups have been designed and synthesised as hole‐selective contacts for inverted perovskite solar cells to investigate their interfacial interactions and, consequently, the performance of the devices. Using the carbazole core as a reference, we compared the effect of the thiophen‐2‐yl phenyl, or the hydroxymethyl phenyl attached to the core through a phenyl moiety, with that of the thiophene directly linked to the carbazole. These new self‐assembled molecules have been successfully synthesized using cost‐effective starting materials and a straightforward synthetic method, eliminating the need for expensive and complex purification processes. Subsequently, they have been applied as efficient hole‐selective contact in inverted perovskite solar cells, leading to an outstanding power conversion efficiency of 19.67% in the case of SAM5, containing a carbazole‐core substituted with double 2‐phenylthiophene side arms as functional group. The detailed characterization of the interface and the charge kinetics has allowed us to determine the effect of each substituent.This article is protected by copyright. All rights reserved.

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Improving Buried Interface Contact for Inverted Perovskite Solar Cells via Dual Modification Strategy

Zhang,

Liu,

Zhao

et al. 2024

Adv Funct Materials

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The non‐wetting issue of the self‐assembled monolayer (SAM) layer can complicate subsequent perovskite deposition and impact device efficiency. This study addresses this challenge using a dual approach involving co‐self‐assembly and a buffer layer to enhance the wettability and interfacial contact of the buried perovskite film. A weakly acidic boronic acid derivative, 4‐N, N‐dimethylbenzeneboronic acid hydrochloride (4NPBA), is used to co‐self‐assemble with the regular SAM molecule on ITO and the subsequent FAI buffer layer further increased perovskite film coverage to 89%. This dual buried interface strategy—SAM‐4NPBA/FAI—results in a flat and dense perovskite interface. The optimized device demonstrates a high fill factor of 88.35%, a power conversion efficiency of 25.29%, and retains over 99% of its initial efficiency after 500 h of maximum power point testing.

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Self-assembled molecules as selective contacts for efficient and stable perovskite solar cells

Abstract: In this review, we summarize the recent advances about self-assembled molecules (SAMs) applied as selective hole or electron contacts for perovskite solar cells.

Cited by 17 publications

References 56 publications

Structural divergence of molecular hole selective materials for viable p-i-n perovskite photovoltaics: a comprehensive review

Structural divergence of molecular hole selective materials for viable p-i-n perovskite photovoltaics: a comprehensive review

Exploring the Interactions at the Interface: Tailoring Carbazole‐Based Self‐Assembled Molecules with Varying Functional Groups for Enhancing the Performance of Inverted Perovskite Solar Cells

Improving Buried Interface Contact for Inverted Perovskite Solar Cells via Dual Modification Strategy

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