The Synthesis and Optoelectronic Applications for Tellurophene‐Based Small Molecules and Polymers

Abstract

Tellurophene-based small molecules and polymers have received great attentions owing to their applications in thin-film transistors, solar cells, and sensors. This article reviews the current progress of the synthesis and applications of tellurophene-based small molecules and polymers. The physico-chemical properties and optoelectronic applications of tellurophene-based materials are summarized and discussed. In the end, the challenges and outlook of tellurophene-based materials are presented.[a] X.

Group 16 conjugated polymers based on furan, thiophene, selenophene, and tellurophene

“…10,250 Tellurophene halogenation in particular not only allows structural and electronic property modification in corresponding polymers, but also lays the foundation for the oxidant sensing of species such as molecular bromine. 251,252 Seferos and coworkers pioneered the bromination of tellurophene-containing polymers using the copolymer poly(bitellurophene-alt-9,9 0 -dihexylfluorene). 10 The addition of molecular bromine leads to a red-shift in the polymer's optical absorbance, and it can be reversed without sample degradation upon annealing at 150 1C.…”

“…10,250 Tellurophene halogenation in particular not only allows structural and electronic property modification in corresponding polymers, but also lays the foundation for the oxidant sensing of species such as molecular bromine. 251,252…”

Hydroelementation of diynes

“…This has been covered in previous reviews. 431,433,434,[446][447][448] This versatile class of tellurium compounds is also an important intermediate in the synthesis of tellurophenes which have applications in material chemistry 430,447,[449][450][451][452][453][454][455] and biological chemistry. 433,456 Among many synthetic strategies towards unsaturated organotellurium compounds, the hydrotelluration of diynes is a highly efficient and stereoselective method for enynyl tellurides which are useful building blocks in modern chemistry.…”

Tellura(benzo)bithiophenes: Synthesis, Oligomerization, and Phosphorescence

“…As a lesser-explored heavier element congener of sulfur and selenium, tellurium presents added opportunities in optoelectronics . For example, the presence of tellurium in a heterocyclic unit can increase the efficiency of intersystem crossing (ISC) between excited singlet to triplet states, thus facilitating light emission via long-lived phosphorescence .…”