Charge-selective contacts have a key role in increasing the efficiency of perovskite solar cells (PSCs). A hole-transport material (HTM) is designed based on a symmetric aromatic molecule that facilitates long-range ordered π–π stacking on substrates. This HTM shows enhanced charge-transport properties, and when incorporated into PSCs, helps to deliver good efficiency and stability.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 12 digital issues and online access to articles
$119.00 per year
only $9.92 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
References
Al-Ashouri, A. et al. Conformal monolayer contacts with lossless interfaces for perovskite single junction and monolithic tandem solar cells. Energy Environ. Sci. 12, 3356–3369 (2019). This paper reports the use of self-assembled molecules to form the HTM within PSCs.
Pauling, L. The nature of the chemical bond. Application of results obtained from the quantum mechanics and from a theory of paramagnetic susceptibility to the structure of molecules. J. Am. Chem. Soc. 53, 1367–1400 (1931). This paper discusses the fundamental nature of p–π conjugation.
Al-Ashouri, A. et al. Monolithic perovskite/silicon tandem solar cell with >29% efficiency by enhanced hole extraction. Science 370, 1300–1309 (2020). This paper reports that symmetric molecular architectures enable efficient hole-selective layers in perovskite solar cells.
Ren, J. et al. Optimizing molecular packing via steric hindrance for reducing non-radiative recombination in organic solar cells. Angew. Chem. Int. Ed. 63, e202406153 (2024). This paper reports that steric hindrance is a factor in the molecular design of organic semiconductor acceptor materials.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This is a summary of: Zhu, P. et al. Symmetry-driven engineering of long-range-ordered π–π stacking molecules for high-efficiency perovskite photovoltaics. Nat. Synth. https://doi.org/10.1038/s44160-025-00896-3 (2025).
Rights and permissions
About this article
Cite this article
Symmetric molecules for long-range ordered π–π stacked hole-transport materials. Nat. Synth (2025). https://doi.org/10.1038/s44160-025-00910-8
Published:
DOI: https://doi.org/10.1038/s44160-025-00910-8
