Finite difference time domain analysis of the light extraction efficiency in organic light-emitting field-effect transistors

2008 ◽  
Vol 104 (3) ◽  
pp. 033116 ◽  
Author(s):  
Robert Gehlhaar ◽  
Masayuki Yahiro ◽  
Chihaya Adachi
Keyword(s):  
Time Domain ◽  
Finite Difference Time Domain ◽  
Field Effect ◽  
Extraction Efficiency ◽  
Field Effect Transistors ◽  
Time Domain Analysis ◽  
Light Extraction Efficiency ◽  
Light Emitting ◽  
Organic Light ◽  
Difference Time

scholarly journals Oligofuran–Benzothiadiazole Co-oligomers: Synthesis, Optoelectronic Properties and Reactivity

2021 ◽  
Vol 03 (02) ◽  
pp. 303-308
Author(s):  
Dror Ben Abba Amiel ◽  
Choongik Kim ◽  
Ori Gidron
Keyword(s):  
Organic Solar Cells ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Light Emitting Diodes ◽  
Organic Field Effect Transistors ◽  
Active Materials ◽  
Light Emitting ◽  
Organic Light ◽  
Donor Acceptor ◽  
Optical Bandgaps

Donor–acceptor–donor (DAD) triad systems are commonly applied as active materials in ambipolar organic field-effect transistors, organic solar cells, and NIR-emitting organic light-emitting diodes. Often, these triads utilize oligothiophenes as donors, whereas their oxygen-containing analogs, oligofurans, are far less studied in this setup. Here we introduce a family of DAD triads in which the donors are oligofurans and the acceptor is benzothiadiazole. In a combined computational and experimental study, we show that these triads display optical bandgaps similar to those of their thiophene analogs, and that a bifuran donor is sufficient to produce emission in the NIR spectral region. The presence of a central acceptor unit increases the photostability of oligofuran-based DAD systems compared with parent oligofurans of the similar length.

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