H2020Индивидуална стипендия2016–2018

CyclAr · Cyclic Arylenevinylene Polymers

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2016-03-01 → 2018-06-30
Финансиране от ЕС: 195 455 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Цикличните полимери се изследват като алтернатива на линейните за използване в OLED дисплеи и слънчеви панели. Липсата на крайни групи в тези структури може да намали деградацията и да подобри работата на електронните устройства.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Cyclic Arylenevinylene Polymers

This project was directed towards solving some of the crucial problems associated with the usage of linear conjugated polymers with end groups in electronic applications such as organic photovoltaics (OPVs), organic field effect transistors (OFETs) and organic light emitting diodes (OLEDs). Even though the physical and optoelectronic properties of most of the linear conjugated polymers are in the desirable range for electronic applications the performance is not up to the expected level. This is partially due to the presence of end groups that can act as charge traps and source for degradation pathways resulting in poor device performance. Through this project we tried to address this issue by proposing cyclic conjugated polymers without end groups which can potentially exhibit better performance than the linear polymers due to lack of end groups. Also, a novel catalytic method was developed for the preparation these cyclic conjugated polymers. Development of high performing conjugated polymers for electronic applications is an essential area of research for technological advancement of the society. The cyclic polymers with optimal optoelectronic will be used as active layer in OPVs, OFETs and OLEDs for light harvesting, sensor applications and display technology respectively. The main objective of this project was to develop efficient synthetic methods to prepare novel conjugated cyclic polymers to address the limitations of their linear congeners. The overall objectives of this project were to design and synthesis of novel polymeric structures, studying their physical, optical and electrochemical properties. Eventually, testing performance of these novel materials in device fabrication. In order to achieve these objectives novel catalytic polymerisation methods were developed for the preparation of fully conjugated cyclic polymers (p-arylenevinylene polymers) and novel polymeric topologies. In addition, some of these methods were used to prepare poly(p-arylenevinylene) block copolymers.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Research work at the University of Manchester (UNIMAN) has developed an efficient synthetic method to prepare arylenevinylene polymers with control of molecular weight and end-group functionality by the ring-opening metathesis polymerization (ROMP) of strained 1,9-cyclophanedienes. The CyclAr project will use this methodology to deliver conjugated polymers of novel topologies, including rings, 8-shapes, trefoils and others. Macromolecular rings will be prepared by ring expansion metathesis polymerization (REMP) using a tethered ruthenium carbene complex and more complex topologies from telechelic polymers prepared from a bifunctional ruthenium carbene complex. Electron rich (p-type) and electron poor (n-type) polymer topologies will be prepared from the appropriate functionalised cyclophanedienes and topological heterojunctions examined. These molecules will be screened for their photovoltaic performance as the novel molecular topologies can lead to an enhanced charge separation and fewer loss mechanisms - key factors in achieving higher power conversion efficiency in OPVs. The synthetic methodology to be adopted is novel and application of these topological arylenevinylene polymers as semiconducting materials in device fabrication is unprecedented.The overall aim of the project is to develop novel topologies for arylenevinylene polymers and to investigate the influence of the molecular shape on the physical, optical and electronic properties.

Оригинален текст от CORDIS (на английски).

Участници

THE UNIVERSITY OF MANCHESTER · ManchesterКоординаторОбединеното кралство