TY  - JOUR
AU  - Rocha-Ortiz, Juan S.
AU  - Wu, Jianchang
AU  - Wenzel, Jonas
AU  - Bornschlegl, Andreas J.
AU  - Perea, Jose Dario
AU  - Leon, Salvador
AU  - Barabash, Anastasia
AU  - Wollny, Anna-Sophie
AU  - Guldi, Dirk M.
AU  - Zhang, Jiyun
AU  - Insuasty, Alberto
AU  - Lüer, Larry
AU  - Ortiz, Alejandro
AU  - Hirsch, Andreas
AU  - Brabec, Christoph
TI  - Enhancing Planar Inverted Perovskite Solar Cells with Innovative Dumbbell‐Shaped HTMs: A Study of Hexabenzocoronene and Pyrene‐BODIPY‐Triarylamine Derivatives
JO  - Advanced functional materials
VL  - 33
IS  - 44
SN  - 1616-301X
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2024-00858
SP  - 2304262
PY  - 2023
AB  - Dumbbell-shaped systems based on PAHs-BODIPY-triarylamine hybrids TM-(01-04) are designed as novel and highly efficient hole-transporting materials for usage in planar inverted perovskite solar cells. BODIPY is employed as a bridge between the PAH units, and the effects of the conjugated π-system's covalent attachment and size are investigated. Fluorescence quenching, 3D fluorescence heat maps, and theoretical studies support energy transfer within the moieties. The systems are extremely resistant to UVC 254 nm germicidal light sources and present remarkable thermal stability at degradation temperatures exceeding 350 °C. Integrating these systems into perovskite solar cells results in outstanding power conversion efficiency (PCE), with TM-02-based devices exhibiting a PCE of 20.26%. The devices base on TM-01, TM-03, and TM-04 achieve PCE values of 16.98%, 17.58%, and 18.80%, respectively. The long-term stability of these devices is measured for 600 h, with initial efficiency retention between 94% and 86%. The TM-04-based device presents noticeable stability of 94%, better than the reference polymer PTAA with 91%. These findings highlight the exciting potential of dumbbell-shaped systems based on PAHs-BODIPY-triarylamine derivatives for next-generation photovoltaics.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001024900700001
DO  - DOI:10.1002/adfm.202304262
UR  - https://juser.fz-juelich.de/record/1021595
ER  -