Role of the Dielectric Nature of the Transparent Contact in Charge Injection and Collection in Organic Optoelectronic Devices

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Dor Gotleyb ◽  
Rafi Shikler
Keyword(s):  
Optoelectronic Devices ◽  
Charge Injection ◽  
Organic Optoelectronic Devices ◽  
Organic Optoelectronic ◽  
Transparent Contact

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.

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
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