The effect of residual palladium on the performance of organic electrochemical transistors

Journal article

Sophie Griggs, Adam Marks, Dilara Meli, Gonzague Rebetezc, Olivier Bardagotc, Bryan D. Paulsen, Hu Chen, Karrie Weaver, Mohamad I. Nugrahag, Emily A. Schafer, Joshua Tropp, Catherine M. Aitchison, Thomas D. Anthopoulos, Natalie Banerji, Jonathan Rivnay, Iain McCulloch
Nature Communications, vol. 13, 2022, p. 7964

DOI: 10.1038/s41467-022-35573-y

Cite

APA Click to copy
Griggs, S., Marks, A., Meli, D., Rebetezc, G., Bardagotc, O., Paulsen, B. D., … McCulloch, I. (2022). The effect of residual palladium on the performance of organic electrochemical transistors. Nature Communications, 13, 7964. https://doi.org/10.1038/s41467-022-35573-y

Chicago/Turabian Click to copy
Griggs, Sophie, Adam Marks, Dilara Meli, Gonzague Rebetezc, Olivier Bardagotc, Bryan D. Paulsen, Hu Chen, et al. “The Effect of Residual Palladium on the Performance of Organic Electrochemical Transistors.” Nature Communications 13 (2022): 7964.

MLA Click to copy
Griggs, Sophie, et al. “The Effect of Residual Palladium on the Performance of Organic Electrochemical Transistors.” Nature Communications, vol. 13, 2022, p. 7964, doi:10.1038/s41467-022-35573-y.

BibTeX Click to copy

@article{sophie2022a,
  title = {The effect of residual palladium on the performance of organic electrochemical transistors},
  year = {2022},
  journal = {Nature Communications},
  pages = {7964},
  volume = {13},
  doi = {10.1038/s41467-022-35573-y},
  author = {Griggs, Sophie and Marks, Adam and Meli, Dilara and Rebetezc, Gonzague and Bardagotc, Olivier and Paulsen, Bryan D. and Chen, Hu and Weaver, Karrie and Nugrahag, Mohamad I. and Schafer, Emily A. and Tropp, Joshua and Aitchison, Catherine M. and Anthopoulos, Thomas D. and Banerji, Natalie and Rivnay, Jonathan and McCulloch, Iain}
}

Organic electrochemical transistors are a promising technology for bioelectronic devices, with applications in neuromorphic computing and healthcare. The active component enabling an organic electrochemical transistor is the organic mixed ionic-electronic conductor whose optimization is critical for realizing high-performing devices. In this study, the influence of purity and molecular weight is examined for a p-type polythiophene and an n-type naphthalene diimide-based polymer in improving the performance and safety of organic electrochemical transistors. Our preparative GPC purification reduced the Pd content in the polymers and improved their organic electrochemical transistor mobility by ~60% and 80% for the p- and n-type materials, respectively. These findings demonstrate the paramount importance of removing residual Pd, which was concluded to be more critical than optimization of a polymer’s molecular weight, to improve organic electrochemical transistor performance and that there is readily available improvement in performance and stability of many of the reported organic mixed ionic-electronic conductors.