Effect on Electrode Work Function by Changing Molecular Geometry of Conjugated Polymer Electrolytes and Application for Hole-Transporting Layer of Organic Optoelectronic Devices

2017 ◽  
Vol 9 (50) ◽  
pp. 44060-44069 ◽  
Author(s):  
Eui Jin Lee ◽  
Min Hee Choi ◽  
Yong Woon Han ◽  
Doo Kyung Moon
Keyword(s):  
Work Function ◽  
Polymer Electrolytes ◽  
Conjugated Polymer ◽  
Optoelectronic Devices ◽  
Molecular Geometry ◽  
Hole Transporting ◽  
Organic Optoelectronic Devices ◽  
Organic Optoelectronic

scholarly journals Revealing molecular conformation–induced stress at embedded interfaces of organic optoelectronic devices by sum frequency generation spectroscopy

2021 ◽  
Vol 7 (16) ◽  
pp. eabf8555
Author(s):  
Zhongwu Wang ◽  
Hongzhen Lin ◽  
Xi Zhang ◽  
Jie Li ◽  
Xiaosong Chen ◽  
...  
Keyword(s):  
Molecular Conformation ◽  
Optoelectronic Devices ◽  
Sum Frequency Generation ◽  
Interface Stress ◽  
Sum Frequency ◽  
Device Stability ◽  
Induced Stress ◽  
Organic Optoelectronic Devices ◽  
Organic Devices ◽  
Organic Optoelectronic

Interface stresses are pervasive and critical in conventional optoelectronic devices and generally lead to many failures and reliability problems. However, detection of the interface stress embedded in organic optoelectronic devices is a long-standing problem, which causes the unknown relationship between interface stress and organic device stability (one key and unsettled issue for practical applications). In this study, a kind of previously unknown molecular conformation–induced stress is revealed at the organic embedded interface through sum frequency generation (SFG) spectroscopy technique. This stress can be greater than 10 kcal/mol per nm2 and is sufficient to induce molecular disorder in the organic semiconductor layer (with energy below 8 kcal/mol per nm2), finally causing instability of the organic transistor. This study not only reveals interface stress in organic devices but also correlates instability of organic devices with the interface stress for the first time, offering an effective solution for improving device stability.

scholarly journals Strong Plasmon–Exciton Coupling in Ag Nanoparticle—Conjugated Polymer Core-Shell Hybrid Nanostructures

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2141
Author(s):  
Christopher E. Petoukhoff ◽  
Keshav M. Dani ◽  
Deirdre M. O’Carroll
Keyword(s):  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Optoelectronic Devices ◽  
Hybrid Nanostructures ◽  
Oscillator Strengths ◽  
Metal Nanostructures ◽  
Core Shell ◽  
Exciton Coupling ◽  
J Aggregates ◽  
Organic Optoelectronic

Strong plasmon–exciton coupling between tightly-bound excitons in organic molecular semiconductors and surface plasmons in metal nanostructures has been studied extensively for a number of technical applications, including low-threshold lasing and room-temperature Bose-Einstein condensates. Typically, excitons with narrow resonances, such as J-aggregates, are employed to achieve strong plasmon–exciton coupling. However, J-aggregates have limited applications for optoelectronic devices compared with organic conjugated polymers. Here, using numerical and analytical calculations, we demonstrate that strong plasmon–exciton coupling can be achieved for Ag-conjugated polymer core-shell nanostructures, despite the broad spectral linewidth of conjugated polymers. We show that strong plasmon–exciton coupling can be achieved through the use of thick shells, large oscillator strengths, and multiple vibronic resonances characteristic of typical conjugated polymers, and that Rabi splitting energies of over 1000 meV can be obtained using realistic material dispersive relative permittivity parameters. The results presented herein give insight into the mechanisms of plasmon–exciton coupling when broadband excitonic materials featuring strong vibrational–electronic coupling are employed and are relevant to organic optoelectronic devices and hybrid metal–organic photonic nanostructures.

Performance Enhancement in Polymer-Based Organic Optoelectronic Devices Enabled By Discontinuous Metal Interlayer

2016 ◽  
Vol 6 (6) ◽  
pp. 1522-1529 ◽  
Author(s):  
Peng-Qing Bi ◽  
Fei Zheng ◽  
Han-Dong Jin ◽  
Wei-long Xu ◽  
Lin Feng ◽  
...  
Keyword(s):  
Performance Enhancement ◽  
Optoelectronic Devices ◽  
Organic Optoelectronic Devices ◽  
Organic Optoelectronic

Organic Optoelectronic Devices

2004 ◽  
Vol 11 (2) ◽  
pp. 44-52
Author(s):  
A B Djuris˘Ić ◽  
W K Chan
Keyword(s):  
Optoelectronic Devices ◽  
Organic Optoelectronic Devices ◽  
Organic Optoelectronic
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