TY  - JOUR
AU  - Wei, Jianan
AU  - Huang, Ting
AU  - Peng, Wenjun
AU  - He, Yi
AU  - Feng, Wei
AU  - Hao, Yuying
AU  - Brabec, Christoph
AU  - Mai, Yaohua
AU  - Guo, Fei
TI  - An efficient ALD- and noble metal-free charge recombination architecture for monolithic all-perovskite tandem solar cells
JO  - Journal of materials chemistry / A
VL  - 13
IS  - 33
SN  - 2050-7488
CY  - London ˜[u.a.]œ
PB  - RSC
M1  - FZJ-2025-03666
SP  - 27101 - 27106
PY  - 2025
AB  - The currently efficient all-perovskite tandem solar cells (all-PTSCs) are built on the workhorse charge recombination layers (CRLs) composed of ALD-SnOX/noble metal/PEDOT:PSS. However, the susceptibility of optoelectronic properties of SnOX to atomic growth conditions and the use of rare metals constrain their promise for commercial deployment. Here, we design an efficient and robust CRL consisting of a layer sequence of Cr/ITO/PEDOT:PSS. The conformally grown thin Cr layer serves as a critical barrier to protect the underlying perovskite from damage during ITO sputtering. Essentially, the entire stack of the CRL exhibits superior resistance to strong polar solvents during the deposition of top narrow-bandgap perovskites. On this basis, high-performance monolithic all-PTSCs are reproducibly fabricated, yielding a state-of-the-art efficiency of 26.56%, alongside an impressive fill factor (FF) of 80.6%.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001545180200001
DO  - DOI:10.1039/D5TA04259C
UR  - https://juser.fz-juelich.de/record/1046026
ER  -