scholarly journals Characterization of Photophysical Properties of D−π−A−π−D Type Diketopyrrolopyrrole Based Molecules for Organic Light-Emitting diodes and Organic Solar Cells

2019 ◽  
Author(s):  
Ruifa Jin ◽  
Xiaofei Zhang ◽  
Wenmin Xiao
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Light Emitting Diodes ◽  
Photophysical Properties ◽  
Organic Light Emitting Diodes ◽  
Excited Singlet ◽  
Light Emitting ◽  
Organic Light ◽  
Ground State Geometry

A series of D–π–A diketopyrrolopyrrole (DPP)-based small molecules have been designed for organic light-emitting diodes (OLEDs) and organic solar cells (OSCs) applications. Appling the PBE0/6-31G(d,p) method, the ground state geometry and relevant electronic properties were investigated. The first excited singlet state geometry and the absorption and fluorescent spectra were simulated at the TD-PBE0/6-31G(d,p) level. The calculated results reveal that the photophysical properties are affected through the introduction of different end groups. Furthermore, the electronic transitions corresponding to absorption and emission exhibit intramolecular charge transfer feature. It was disclosed that the designed molecules act not only as luminescent for OLEDs, but also donor materials in OSCs. Moreover, they also can be used as potential electron transfer materials using for OLEDs and OSCs.

scholarly journals Theoretical Studies of Photophysical Properties of D−π−A−π−D-Type Diketopyrrolopyrrole-Based Molecules for Organic Light-Emitting Diodes and Organic Solar Cells

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 667 ◽  
Author(s):  
Ruifa Jin ◽  
Xiaofei Zhang ◽  
Wenmin Xiao
Keyword(s):  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Light Emitting Diode ◽  
Photophysical Properties ◽  
Organic Light Emitting Diodes ◽  
Excited Singlet ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Ground State Geometry

A series of D–π–A diketopyrrolopyrrole(DPP)-based small molecules were designed for organic light-emitting diode(OLEDs) and organic solar cell(OSCs) applications. Applying the PBE0/6-31G(d,p) method, the ground state geometry and relevant electronic properties were investigated. The first excited singlet state geometry and the absorption and fluorescent spectra were simulated at the TD-PBE0/6-31G(d,p) level. The calculated results revealed that the photophysical properties were affected through the introduction of different end groups. Furthermore, the electronic transitions corresponding to absorption and emission exhibited an intramolecular charge transfer feature. Our results suggest that the designed molecules acted not only as luminescent for OLEDs, but also as donor materials in OSCs. Moreover, they can also be used as potential electron transfer materials for OLEDs and OSCs.

scholarly journals Study of Nanostructured Polymeric Composites Used for Organic Light Emitting Diodes and Organic Solar Cells

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Nguyen Nang Dinh ◽  
Do Ngoc Chung ◽  
Tran Thi Thao ◽  
David Hui
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Organic Light Emitting Diodes ◽  
Transport Layer ◽  
Nanocomposite Films ◽  
Hole Transport Layer ◽  
Light Emitting ◽  
Organic Light

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.

Study of nanostructured polymeric composites used for organic light emitting diodes and organic solar cells

2012 ◽  
Vol 9 (5) ◽  
pp. 399-406
Author(s):  
Do Chung ◽  
Nguyen Dinh ◽  
Tran Thao ◽  
Nguyen Nam ◽  
Tran Trung ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Organic Light Emitting Diodes ◽  
Transport Layer ◽  
Nanocomposite Films ◽  
Hole Transport Layer ◽  
Light Emitting ◽  
Organic Light

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.

Bathocuproine as a cathode interlayer for nonfullerene organic solar cells with efficiency over 17%

2021 ◽  
Author(s):  
Tiefeng Liu ◽  
Lulu Sun ◽  
Cong Xie ◽  
Wen Wang ◽  
Fei Qin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Cathode Interlayer

Bathocuproine (BCP) is a classic cathode interlayer (CIL) in organic light-emitting diodes and fullerene-based bilayer-structured organic solar cells (OSC). However, the BCP hasn’t yet been reported in recently emerging nonfullerene-based...

Nano-particle based scattering layers for optical efficiency enhancement of organic light-emitting diodes and organic solar cells

2013 ◽  
Vol 113 (20) ◽  
pp. 204502 ◽  
Author(s):  
Hong-Wei Chang ◽  
Jonghee Lee ◽  
Simone Hofmann ◽  
Yong Hyun Kim ◽  
Lars Müller-Meskamp ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Nano Particle ◽  
Efficiency Enhancement ◽  
Optical Efficiency ◽  
Light Emitting ◽  
Organic Light

Naphthalimide end-capped diphenylacetylene: a versatile organic semiconductor for blue light emitting diodes and a donor or an acceptor for solar cells

2019 ◽  
Vol 43 (23) ◽  
pp. 9243-9254 ◽  
Author(s):  
Thu-Trang Do ◽  
Sudam Chavhan ◽  
Jegadesan Subbiah ◽  
Tsu-Hao Ou ◽  
Sergei Manzhos ◽  
...  
Keyword(s):  
Solar Cells ◽  
Blue Light ◽  
Organic Semiconductor ◽  
Organic Solar Cells ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Emissive Layer ◽  
Organic Light

A novel compound NAI-PVP-NAI was utilized as a blue emissive layer for organic light emitting diodes and as an acceptor and a donor for organic solar cells.

Sign in / Sign up

Export Citation Format

Share Document