PMID- 35014146
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220322
IS  - 1521-3773 (Electronic)
IS  - 1433-7851 (Linking)
VI  - 61
IP  - 14
DP  - 2022 Mar 28
TI  - Homogeneously Large Polarons in Aromatic Passivators Improves Charge Transport 
      between Perovskite Grains for >24 % Efficiency in Photovoltaics.
PG  - e202116308
LID - 10.1002/anie.202116308 [doi]
AB  - Aromatic passivators, such as porphyrin, with large pi-backbones have attracted 
      considerable attention to boost the charge carrier in polycrystalline perovskite 
      films, thus enabling the fabrication of efficient and stable perovskite solar 
      cells (PSCs). However, they often self-assemble into supramolecules that probably 
      influence the charge-transfer process in the perovskite grain boundary. Here, by 
      doping a monoamine Cu porphyrin into perovskite films, two porphyrin-based 
      self-assembled supramolecules were successfully prepared between perovskite 
      grains. Crystal structures and theoretical analyses reveal the presence of a 
      stronger interaction between the amine units and the central Cu ions of 
      neighbouring porphyrins in one of the supramolecules. This has a modified effect 
      on the dipole direction of the porphyrins to be quantized as homogeneously large 
      polarons (HLPs) in a periodic lattice. The porphyrin supramolecules can stabilize 
      perovskite grain boundaries to greatly improve the stability of PSCs, while the 
      HLPs-featured supramolecule facilitates hole transport across perovskite grains 
      to remarkably increase the cell performance to as high as 24.2 %. This work 
      proves that the modulation of the intermolecular interaction of aromatic 
      passivators to yield HLPs is crucial for the cascaded acceleration of charge 
      transport between perovskite grains.
CI  - (c) 2022 Wiley-VCH GmbH.
FAU - Zhao, Jia-Hui
AU  - Zhao JH
AD  - State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous 
      Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry 
      and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P.R. China.
FAU - Mu, Xijiao
AU  - Mu X
AD  - State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous 
      Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry 
      and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P.R. China.
FAU - Wang, Luyao
AU  - Wang L
AD  - State School of Materials Science and Engineering, Shanghai Jiao Tong University, 
      Shanghai, 200240, P.R. China.
FAU - Fang, Zihan
AU  - Fang Z
AD  - State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous 
      Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry 
      and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P.R. China.
FAU - Zou, Xiaoxin
AU  - Zou X
AD  - State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of 
      Chemistry, Jilin University, Changchun, 130012, P.R. China.
FAU - Cao, Jing
AU  - Cao J
AUID- ORCID: 0000-0003-3978-911X
AD  - State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous 
      Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry 
      and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P.R. China.
LA  - eng
GR  - 22075116/National Natural Science Foundation of China/
GR  - 2021YFA1501101/National Key R&D Program of China/
GR  - lzujbky-2021-ey10/Fundamental Research Funds for the Central Universities of 
      China/
GR  - 20JR5RA305/Science and Technology program of Gansu Province/
PT  - Journal Article
DEP - 20220215
PL  - Germany
TA  - Angew Chem Int Ed Engl
JT  - Angewandte Chemie (International ed. in English)
JID - 0370543
SB  - IM
OTO - NOTNLM
OT  - Aromatic Passivators
OT  - Homogeneously Large Polarons
OT  - Perovskites
OT  - Porphyrin
OT  - Solar Cells
EDAT- 2022/01/12 06:00
MHDA- 2022/01/12 06:01
CRDT- 2022/01/11 07:11
PHST- 2021/11/30 00:00 [received]
PHST- 2022/01/12 06:00 [pubmed]
PHST- 2022/01/12 06:01 [medline]
PHST- 2022/01/11 07:11 [entrez]
AID - 10.1002/anie.202116308 [doi]
PST - ppublish
SO  - Angew Chem Int Ed Engl. 2022 Mar 28;61(14):e202116308. doi: 
      10.1002/anie.202116308. Epub 2022 Feb 15.