Tuning the Interfacial Electronic Structure at Organic Heterojunctions by Chemical Design

Quantum-chemical techniques are applied to assess the electronic structure at donor/acceptor heterojunctions of interest for organic solar cells. We show that electrostatic effects at the interface of model 1D stacks profoundly modify the energy landscape explored by charge carriers in the photoconversion process and that these can be tuned by chemical design. When fullerene C₆₀ molecules are used as acceptors and unsubstituted oligothiophenes or pentacene are used as donors, the uncompensated quadrupolar electric field at the interface provides the driving force for splitting of the charge-transfer states into free charges. This quadrupolar field can be either enhanced by switching from a C₆₀ to a perylene-tetracarboxylic-dianhydride (PTCDA) acceptor or suppressed by grafting electron-withdrawing groups on the donor

Experimental and Theoretical Study of the Effect of the Inductive-to-Capacitive Transition in Propanethiol Plasma Polymer Chemistry

The influence of the capacitive (E)-to-inductive transition (H) in inductively coupled plasma discharges is investigated for propanethiol plasma polymerization. In the E mode, at low plasma density, the sulfur content in the layers, measured by XPS, is quite high and strongly decreases after aging in the air. This phenomenon is attributed to the desorption of trapped sulfur-based molecules (e.g., H₂S). In the H mode, presumably higher surface temperature prevents the trapping scenario during the layer growth and, as a consequence, yields a lower sulfur content which is stable after aging. Mass spectrometry measurements reveal important variations of the plasma chemistry depending on the discharge mode. The major change concerns the complete disappearance of the precursor in the H mode accompanied by the large production of CS₂ molecules. Furthermore, a linear correlation is found between the concentration of the CS₂ species and the atomic sulfur content in the H-mode synthesized layers. In addition, based on DFT calculations, different pathways of fragmentation are proposed as a function of the plasma parameters. The whole set of results highlight the importance of the E–H transition for the growth of thiol-based plasma polymers

QTL for grain plumpness in three doubled haploid populations of barley at six environments in southern Australia.

<p>QTL for grain plumpness in three doubled haploid populations of barley at six environments in southern Australia.</p

Summary statistics based on BLUPs for yield and grain plumpness for three populations and variation in the parents at six different environments.

<p>Summary statistics based on BLUPs for yield and grain plumpness for three populations and variation in the parents at six different environments.</p

Yield QTL in three doubled haploid populations of barley at six environments in southern Australia.

<p>Yield QTL in three doubled haploid populations of barley at six environments in southern Australia.</p

Yield, grain plumpness and maturity QTL positions in the CF, CW and FW populations.

<p>* = closest marker to the QTL peak. ** = markers flanking a QTL peak. Known phenology genes outside of QTL intervals are shown with pink colour, while those co-located with QTL are shown in blue.</p

sj-docx-2-msj-10.1177_13524585231223880 – Supplemental material for Cancer and multiple sclerosis: 2023 recommendations from the French Multiple Sclerosis Society

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sj-docx-3-msj-10.1177_13524585231223880 – Supplemental material for Cancer and multiple sclerosis: 2023 recommendations from the French Multiple Sclerosis Society

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sj-docx-1-msj-10.1177_13524585231223880 – Supplemental material for Cancer and multiple sclerosis: 2023 recommendations from the French Multiple Sclerosis Society

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