Journal Article

IMPULSE-2025-00064

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Regulating phase homogeneity by self-assembled molecules for enhanced efficiency and stability of inverted perovskite solar cells

Wang, X. ; Li, J. ; Guo, R. ; Yin, X. ; Luo, R. ; Guo, D. ; Ji, K. ; Dai, L. ; Liang, H. ; Jia, X. ; Chen, J. ; Jia, Z. ; Shi, Z. ; Liu, S. ; Wang, Y. ; Zhou, Q. ; Wang, T. ; Pan, G. ; Müller-Buschbaum, P.MLZ* ; Stranks, S. D. ; Hou, Y.

2024
Nature Publ. Group London [u.a.]

Please use a persistent id in citations: doi:10.1038/s41566-024-01531-x

Abstract: Heterogeneity in transporting interfaces and perovskites poses a substantial challenge in improving the efficiency of perovskite solar cells from small to large scales, a key barrier to their commercial use. Here we find that the amorphous phases of self-assembling molecules (SAMs) can realize a more homogeneous perovskite growth. Hyperspectral analysis confirms a narrower and blueshifted photoluminescence peak distribution in perovskite/amorphous SAMs. Additionally, fluence-dependent time-resolved photoluminescence reveals a reduced trap-assisted recombination rate of 0.5 × 106 s−1 in amorphous-SAM-based perovskite films. This improvement translates to p–i–n structured perovskite solar cells achieving an efficiency of 25.20% (certified at 24.35%) over a one-square-centimetre area. These cells maintain nearly 100% efficiency after 600 h of 1-sun maximum power point tracking under the ISOS-L-1 protocol, and retain 90% of their initial efficiency after 1,000 h, as evaluated by the ISOS-T-2 protocol.

Keyword(s): Energy (1st) ; Chemistry (2nd) ; Industrial Application (2nd)

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Contributing Institute(s):

1. Heinz Maier-Leibnitz Zentrum (MLZ)
2. E13 (E13)

Experiment(s):

1. No specific instrument

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Nature ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 30 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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