DOI: 10.17863/cam.99879
title: Research data supporting "Effects of processing-induced contamination on organic electronic devices"

description: The repository entry contains research data supporting "Effects of Processing-Induced Contamination on Organic Electronic Devices". The DOI of the publication that cites the data is 10.1002/smtd.202300476. Nuclear Magnetic Resonance (NMR) data The “NMR data - Processed - Topspin” folder contains all the Nuclear Magnetic Resonance (NMR) spectra contained in the paper, as well as additional datasets. The data processing did not induce permanent changes to the data, so the raw data look very similar to the processed data. The "NMR data" project file contains all the NMR data. The individual batches are plotted separately, and also compared to each other to plot the Figures of the paper. The NMR data were processed by TopSpin, and then exported and plotted with Origin. We analyzed the spectra by performing phase correction, apodization with an exponential function (the line broadening weighting factor LB was set to 0.4 Hz), fifth order polynomial baseline correction, and calibration of the chemical shift axis using the CHCl3 peak (7.26 ppm), or one of the C6H5Cl peaks (6.99 ppm). The intensities of the spectra were normalized with respect to either the CHCl3 or C6H5Cl peak of the bottle reference spectrum, or the polymer aromatic signals. Each Figure in the paper mentions the type of peak normalization method that was conducted. Organic field-effect transistor (OFET) data The “Origin project files” folder contains mostly organic field effect transistor (OFET) data (I-V curves). The OFETs were characterized in a nitrogen gas-filled glovebox using an Agilent 4155B semiconductor parameter analyzer with medium power source-meter units and a current resolution of 10 fA. The Origin scripts used to analyze the transistor I-V curves can be found in the OE-FET GitHub repository. Nanomechanical mapping (PeakForce QNM) data The “Nanomechanical mapping (PeakForce QNM) Data” folder contains the raw and processed Peak Force QNM Data, which are shown in Figure 7 of the paper. The folder also contains a short summary that describes the findings. Quartz Crystal Microbalance (QCM) data There is a dataset with Quartz Crystal Microbalance (QCM) data in the “Origin project files” folder. QCM measurements were used to measure the water uptake of polymer films. Video 1 - IDTBT wetting properties modification by the PDMS contaminant from disposable needles The video demonstrates effect of PDMS on the wetting behavior of IDTBT films. It is related to the findings of Figure 6. Initially a clean IDTBT solution in spin-coated, and it dewets. The PDMS contamination is then introduced by briefly dipping a siliconized needle into an IDTBT solution, and swirling it around for 6-7 seconds. The same IDTBT solution then wets the surface and forms a uniform film. Video 2 - Method of redissolving IDTBT films The video demonstrates the method of redissolving IDTBT films, which is one of the five different NMR-based protocols that were used to detect contaminants in the glovebox, as well as leachables from laboratory consumables. The method itself is also described in the Supplementary Information. ~300 μL of deuterated solvent was drawn from the 20 mL vial using a glass pipette. The deuterated solvent was deposited on the polymer film, making sure to stay at least 5 mm away from the edge of the substrate. After the film redissolved, the deuterated solvent was drawn back inside the pipette, and placed in a clean NMR tube. The previous steps were then repeated using a new glass pipette, until the deuterated solvent inside the NMR tube reached the 4.5 cm mark. The filled NMR tube was then labeled and placed in the rack.