In:
Advanced Functional Materials, Wiley, Vol. 32, No. 47 ( 2022-11)
Kurzfassung:
2D perovskites are relatively stable but possess poor charge transport compared to 3D perovskites. To boost charge transport, novel 2D perovskites mixed with 3D perovskites are developed, where Pb 2+ are partially substituted by the heterovalent neodymium cations (Nd 3+ ) within both 2D and 3D perovskites (termed Nd 3+ ‐substituted 2D:3D mixed perovskites. Systematical studies reveal that the Nd 3+ ‐substituted 2D:3D mixed perovskites possess larger crystals, superior crystallinity, suppressed non‐radiative charge recombination, and enhanced and balanced charge transport compared to the 2D:3D mixed perovskites. As a result, perovskite photovoltaics based on the Nd 3+ ‐substituted 2D:3D mixed perovskites exhibit a power conversion efficiency of 22.11%, a photoresponsibility of over 700 mA W −1 , a photodetectivity of 4.29 × 10 14 cm Hz 1/2 W −1 , a linear dynamic range of 165 dB at room temperature, and dramatically boosted stability. These results demonstrate that, a facile way is developed to realize high‐performance perovskite photovoltaics through partially heterovalent substituted Pb 2+ by Nd 3+ within 2D:3D mixed perovskites.
Materialart:
Online-Ressource
ISSN:
1616-301X
,
1616-3028
DOI:
10.1002/adfm.202207911
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2022
ZDB Id:
2029061-5
ZDB Id:
2039420-2
SSG:
11
