Issue 18, 2023

Small molecule dopant-free dual hole transporting material for conventional and inverted perovskite solar cells

Abstract

Interfacial layers play very important roles in perovskite solar cells and the enormous diversity of reported materials has contributed to the outstanding progress of these photovoltaic devices. Nevertheless, the interfacial materials are commonly developed to be used in solar cells with a specific architecture, either conventional (n–i–p) or inverted (p–i–n). We report the exceptional performance of a small molecule, whose structural features, based on hydrogen bond-directed self-assembly, allow its application as hole transporting layer (HTL) in n–i–p and p–i–n perovskite solar cells with the same efficiency. This particularity has been investigated through a comparative study with a very similar molecule that cannot self-assemble, evidencing the benefits of the structural integrity of hydrogen bonded HTLs in terms of charge extraction and recombination, independently on the device architecture.

Graphical abstract: Small molecule dopant-free dual hole transporting material for conventional and inverted perovskite solar cells

Supplementary files

Article information

Article type
Research Article
Submitted
20 apr 2023
Accepted
27 jun 2023
First published
27 jun 2023
This article is Open Access
Creative Commons BY-NC license

Mater. Chem. Front., 2023,7, 4019-4028

Small molecule dopant-free dual hole transporting material for conventional and inverted perovskite solar cells

M. Más-Montoya, P. Gómez, J. Wang, R. A. J. Janssen and D. Curiel, Mater. Chem. Front., 2023, 7, 4019 DOI: 10.1039/D3QM00425B

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