Acene-based organic semiconductors for organic light-emitting diodes and perovskite solar cells

2018 ◽  
Vol 6 (33) ◽  
pp. 9017-9029 ◽  
Author(s):  
Hong Duc Pham ◽  
Hongwei Hu ◽  
Fu-Lung Wong ◽  
Chun-Sing Lee ◽  
Wen-Cheng Chen ◽  
...  

A series of strong electron-rich small molecules based on acenes were designed and synthesized for application in green/blue organic light-emitting diodes and perovskite solar cells.

2018 ◽  
Vol 11 (3) ◽  
pp. 682-691 ◽  
Author(s):  
Qiang Zhang ◽  
Wei-Ting Wang ◽  
Cheng-Yu Chi ◽  
Tobias Wächter ◽  
Jhih-Wei Chen ◽  
...  

PDTON, exhibiting either hole transporting or reducing electrode WF, can be utilized as a ‘universal’ electrode buffer layer material.


2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Nguyen Nang Dinh ◽  
Do Ngoc Chung ◽  
Tran Thi Thao ◽  
David Hui

Polymeric nanocomposite films from PEDOT and MEH-PPV embedded with surface modified TiO2nanoparticles for the hole transport layer and emission layer were prepared, respectively, for organic emitting diodes (OLEDs). The composite of MEH-PPV+nc-TiO2was used for organic solar cells (OSCs). The characterization of these nanocomposites and devices showed that electrical (I-Vcharacteristics) and spectroscopic (photoluminescent) properties of conjugate polymers were enhanced by the incorporation of nc-TiO2in the polymers. The organic light emitting diodes made from the nanocomposite films would exhibit a larger photonic efficiency and a longer lasting life. For the organic solar cells made from MEH-PPV+nc-TiO2composite, a fill factor reached a value of about 0.34. Under illumination by light with a power density of 50 mW/cm2, the photoelectrical conversion efficiency was about 0.15% corresponding to an open circuit voltageVoc= 0.126 V and a shortcut circuit current densityJsc= 1.18 mA/cm2.


2012 ◽  
Vol 9 (5) ◽  
pp. 399-406
Author(s):  
Do Chung ◽  
Nguyen Dinh ◽  
Tran Thao ◽  
Nguyen Nam ◽  
Tran Trung ◽  
...  

Polymeric nanocomposite films from PEDOT and MEH-PPV embedded with surface modified TiO2 nanoparticles were prepared, respectively for the hole transport layer (HTL) and emission layer (EL) in Organic Light Emitting Diodes (OLED). The composite of MEH-PPV + nc-TiO2 was used for Organic Solar Cells (OCS). The results from the characterization of the properties of the nanocomposites and devices showed that electrical (I-V characteristics) and spectroscopic (photoluminescent) properties of the conjugate polymers were enhanced due to the incorporation of nc-TiO2 in the polymers. The OLEDs made from the nanocomposite films would exhibit a larger photonic efficiency and a longer lasting life. For the OSC made from MEH-PPV + nc-TiO2 composite, the fill factor (FF) reached a value as high as 0.34. Under illumination of light with a power density of 50 mW/cm2, the photoelectrical conversion efficiency (PEC) was found to be of 0.15% corresponding to an open circuit voltage VOC = 1.15 V and a short-cut circuit current density JSC = 0.125 mA/cm2.


2019 ◽  
Vol 7 (13) ◽  
pp. 3934-3944 ◽  
Author(s):  
Valentin H. K. Fell ◽  
Neil J. Findlay ◽  
Benjamin Breig ◽  
Clarissa Forbes ◽  
Anto R. Inigo ◽  
...  

A series of red fluorescent materials (compounds 1–4), which each contain the symmetric fluorene–thiophene–BT–thiophene–fluorene core, is presented along with their performance in solution-processed OLED devices.


2019 ◽  
Vol 7 (26) ◽  
pp. 7900-7905 ◽  
Author(s):  
Yonghong Chen ◽  
Xiaofu Wu ◽  
Yang Liu ◽  
Liang Chen ◽  
Hua Li ◽  
...  

Water-soluble and pH neutral triazatruxene-based small molecules have been used as hole injection materials in solution-processable organic light-emitting diodes, achieving even better performance compared with PEDOT:PSS.


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