Overcoming Microstructural Limitations in Water Processed Organic Solar Cells by Engineering Customized Nanoparticulate Inks

Journal article
(Original article)


Publication Details

Author(s): Xie C, Classen A, Späth A, Tang X, Min J, Meyer M, Zhang C, Li N, Osvet A, Fink R, Brabec C
Journal: Advanced Energy Materials
Publisher: Wiley-VCH Verlag
Publication year: 2018
ISSN: 1614-6832
eISSN: 1614-6840
Language: English


Abstract


The application of conjugated polymer and fullerene water-based nanoparticles

(NP) as ecofriendly inks for organic photovoltaics (OPVs) is

reported. A low bandgap polymer diketopyrrolopyrrole–quinquethiophene

(PDPP5T-2) and the methanofullerene PC71BM are processed into three types

of nanoparticles: pristine fullerene NPs, pristine polymer NPs, and mixed

polymer:fullerene NPs, allowing the formation of bulk heterojunction (BHJ)

composites with different domain sizes. Mild thermal annealing is required

to melt the nanospheres and enable the formation of interconnected pathways

within mixed phases. This BHJ is accompanied by a shrinkage of film,

whereas the more compact layers show enhanced mobility. Consistently

reduced recombination and better performance are found for mixed NP, containing

both, the polymer and the fullerene within a single NP. The optimized

solar cell processed by ultrasmall NPs delivers a power conversion efficiency

of about 3.4%. This is among the highest values reported for aqueous processed

OPVs but still lacks performance compared to those being processed

from halogenated solvents. Incomplete crystallization is identified as the main

root for reduced efficiency. It is nevertheless believed that postprocessing

does not cut attraction from printing aqueous organic NP inks as a trendsetting

strategy for the reliable and ecofriendly production of organic solar cells.



FAU Authors / FAU Editors

Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Classen, Andrej
Institute Materials for Electronics and Energy Technology (i-MEET)
Fink, Rainer Prof. Dr.
Professur für Physikalische Chemie
Li, Ning Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Meyer, Markus
Lehrstuhl für Physikalische Chemie II
Min, Jie
Institute Materials for Electronics and Energy Technology (i-MEET)
Osvet, Andres Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Späth, Andreas Dr.
Lehrstuhl für Physikalische Chemie II
Tang, Xiaofeng
Institute Materials for Electronics and Energy Technology (i-MEET)
Zhang, Chaohong
Institute Materials for Electronics and Energy Technology (i-MEET)


Research Fields

Neue Materialien und Prozesse
Research focus area of a faculty: Technische Fakultät


How to cite

APA:
Xie, C., Classen, A., Späth, A., Tang, X., Min, J., Meyer, M.,... Brabec, C. (2018). Overcoming Microstructural Limitations in Water Processed Organic Solar Cells by Engineering Customized Nanoparticulate Inks. Advanced Energy Materials. https://dx.doi.org/10.1002/aenm.201702857

MLA:
Xie, Chen, et al. "Overcoming Microstructural Limitations in Water Processed Organic Solar Cells by Engineering Customized Nanoparticulate Inks." Advanced Energy Materials (2018).

BibTeX: 

Last updated on 2019-09-08 at 09:03