Martin R. Bryce

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We determine and compare, at the single molecule level and under identical environmental conditions, the electrical conductance of four conjugated phenylene oligomers comprising terminal sulfur anchor groups with simple structural and conjugation variations. The comparison shows that the conductance of oligo(phenylene vinylene) (OPV) is slightly higher than(More)
Understanding of the effects of fundamental molecular structure on material characteristics in conducting polymers' requires the construction of materials with very well-defined physical structures.2 Efforts to prepare regioregular head-to-tail (HT) poly(3-alkylthiophene~)~ (PATS) led to the development, in our lab4 and then el~ewhere,~ of a method for the(More)
Electrical and mechanical properties of elongated gold-molecule-gold junctions formed by tolane-type molecules with different anchoring groups (pyridyl, thiol, amine, nitrile and dihydrobenzothiophene) were studied in current-sensing force spectroscopy experiments and density functional simulations. Correlations between forces, conductances and junction(More)
Although persistent room-temperature phosphorescence (RTP) emission has been observed for a few pure crystalline organic molecules, there is no consistent mechanism and no universal design strategy for organic persistent RTP (pRTP) materials. A new mechanism for pRTP is presented, based on combining the advantages of different excited-state configurations(More)
Here, a comprehensive photophysical investigation of a the emitter molecule DPTZ-DBTO2, showing thermally activated delayed fluorescence (TADF), with near-orthogonal electron donor (D) and acceptor (A) units is reported. It is shown that DPTZ-DBTO2 has minimal singlet-triplet energy splitting due to its near-rigid molecular geometry. However, the electronic(More)
N(1)-O(2) distance is 2.85 (2)A, whilst the N(2)-O(1) distance is 2.88 (2) A. In both cases the hydrogen-bond distance is less than 3.0 A, hence these bonds play an important role in the packing of the molecules in a unit cell. The unit cell consists of four molecules with CI(1) and C1(2) as terminal atoms. The molecules are arranged in two pairs held by(More)
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