π-Conjugated 3,10-dialkyl-dinaphtho[1,2-b:2′,1′-d]chalcogenophenes incorporating S, Se, and Te as the central chalcogen atom were developed, and their optoelectronic and charge-transport properties were systematically investigated.
NON-FULLERENE ELECTRON ACCEPTORS FOR ORGANIC PHOTOVOLTAIC DEVICES
申请人:UNIVERSITY OF WASINGTON
公开号:US20170057962A1
公开(公告)日:2017-03-02
Non-fullerene electron acceptors for highly efficient organic photovoltaic devices are described. The non-fullerene electron acceptors have an extended, rigid, π-conjugated electron-deficient framework that can facilitate exciton and charge derealization. The non-fullerene electron acceptors can physically mix with a donor polymer and facilitate improved electron transport. The non-fullerene electron acceptors can be incorporated into organic electronic devices, such as photovoltaic cells.
Synthesis of Diphenylchalcogenophene Diboronic Acid Bis(pinacol) Esters and Halogen Photoelimination from Tellurium by Triplet-Triplet Annihilation
作者:Peng-Fei Li、Elisa I. Carrera、Dwight S. Seferos
DOI:10.1002/cplu.201600335
日期:2016.9
The synthesis of diphenylthiophene-, diphenylselenophene-, and diphenyltellurophene-based diboronic bis(pinacol) esters and their optoelectronic properties is reported. The addition of bromine to the borylated diaryltellurophene and subsequent photoelimination are investigated. The photochemical quantum yield of bromine photoelimination is (9.7±0.2) % at a 4.4 m trap (2,3-dimethyl-1,3-butadiene) concentration