Spectroscopic Studies on Intramolecular Charge-Transfer Characteristics in Small-Molecule Organic Solar Cell Donors: A Case Study on ADA and DAD Triad Donors

2020 ◽  
Vol 124 (34) ◽  
pp. 18502-18512 ◽  
Author(s):  
Hae Yeon Chung ◽  
Juwon Oh ◽  
Jung-Hwa Park ◽  
Illhun Cho ◽  
Won Sik Yoon ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solar Cell ◽  
Small Molecule ◽  
Organic Solar Cell ◽  
Intramolecular Charge Transfer ◽  
Spectroscopic Studies ◽  
Transfer Characteristics

scholarly journals A push–pull organic semiconductor with efficient intramolecular charge transfer for solution-processed small molecule solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3435-3442 ◽  
Author(s):  
Yu Jin Kim ◽  
Gi Back Lee ◽  
Chan Woo Jeon ◽  
Yun-Hi Kim ◽  
Dae Sung Chung ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Solar Cell ◽  
Small Molecule ◽  
Organic Semiconductor ◽  
Intramolecular Charge Transfer ◽  
Cell Performance ◽  
Solution Processed ◽  
Solar Cell Performance

DMF-BP-T-MMN exhibits superior intramolecular charge transfer and excellent solar cell performance with a PCE of 3.40%.

Novel cathode buffer layer of Ag-doped bathocuproine for small molecule organic solar cell with inverted structure

2014 ◽  
Vol 15 (8) ◽  
pp. 1773-1779 ◽  
Author(s):  
Xia Hao ◽  
Shenghao Wang ◽  
Wei Fu ◽  
Takeaki Sakurai ◽  
Shigeru Masuda ◽  
...  
Keyword(s):  
Solar Cell ◽  
Buffer Layer ◽  
Small Molecule ◽  
Organic Solar Cell ◽  
Inverted Structure ◽  
Cathode Buffer Layer

A Ternary Organic Solar Cell with 15.6% Efficiency Containing a New DPP-based Acceptor

2021 ◽  
Author(s):  
Maria Privado ◽  
Hemraj Dahiya ◽  
Pilar de la Cruz ◽  
Mukhamed Lostambievich Keshtov ◽  
Fernando Langa ◽  
...  
Keyword(s):  
Solar Cell ◽  
Small Molecule ◽  
Organic Solar Cell

A new non-fullerene small molecule acceptor (MPU6) containing a diketopyrrolopyrrole (DPP) acceptor unit as core, connected to dicyanomethylene-3-ethylrhodanine end-capped units via thienylethynylselenophene bridges, has been designed and synthesized and its...

An Improved Triple-Tandem Organic Solar Cell

2009 ◽  
Vol 1212 ◽  
Author(s):  
Dewei Zhao ◽  
Xiao Wei Sun ◽  
Lin Ke ◽  
Swee Tiam Tan
Keyword(s):  
Solar Cell ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Copper Phthalocyanine ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Solar Irradiation ◽  
The Third

AbstractWe present an efficient polymer-small molecule triple-tandem organic solar cell (OSC), consisting of poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM) bulk heterojunction as the first and second cells, and small molecules copper phthalocyanine (CuPc) and fullerene (C60) as the third cell on top. These sub-cells are connected by an intermediate layer of Al(1 nm)/MoO3(15 nm), which appears to be highly transparent, structurally smooth, and electrically functional. Compared to our previous all polymer triple-tandem organic solar cells (2.03%), this polymer-small molecule triple-tandem organic solar cell achieves an improved power conversion efficiency of 2.18% with a short-circuit current density (Jsc) = 3.02 mA/cm2, open-circuit voltage (Voc) = 1.51 V, and fill factor (FF) = 47.7% under simulated solar irradiation of 100 mW/cm2 (AM1.5G), which can be attributed to the increased photocurrent generation in the third cell since the third cell has the complementary absorption with two bottom cells despite a slightly reduced Voc.

Monitoring the intramolecular charge transfer process in the Z907 solar cell sensitizer: a transient Vis and IR spectroscopy and ab initio investigation

2015 ◽  
Vol 17 (33) ◽  
pp. 21594-21604 ◽  
Author(s):  
Nicolò Azzaroli ◽  
Maria Grazia Lobello ◽  
Andrea Lapini ◽  
Alessandro Iagatti ◽  
Laura Bussotti ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Solar Cell ◽  
Ir Spectroscopy ◽  
Ab Initio ◽  
Transfer Process ◽  
Intramolecular Charge Transfer ◽  
Charge Transfer Process ◽  
Tddft Calculations ◽  
Semiconductor Substrates

The excited state dynamics of Z907 in solution and on semiconductor substrates has been studied with ultrafast UV/Vis and IR spectroscopy and DFT/TDDFT calculations.

A theoretical study on photophysical properties of triphenylamine-cored molecules with naphthalimide arms and different π-conjugated bridges as organic solar cell materials

2015 ◽  
Vol 17 (3) ◽  
pp. 2094-2103 ◽  
Author(s):  
R. F. Jin ◽  
Y. F. Chang
Keyword(s):  
Charge Transfer ◽  
Solar Cell ◽  
Organic Solar Cell ◽  
Theoretical Study ◽  
Photophysical Properties ◽  
Theoretical Investigations

Theoretical investigations show that star-shaped molecules are expected to be promising candidates for charge transfer and donor materials for OSCs.

scholarly journals A highly efficient polymer non-fullerene organic solar cell enhanced by introducing a small molecule as a crystallizing-agent

2018 ◽  
Vol 21 (1) ◽  
pp. 79-87 ◽  
Author(s):  
Yifan Zheng ◽  
Jiang Huang ◽  
Gang Wang ◽  
Jaemin Kong ◽  
Di Huang ◽  
...  
Keyword(s):  
Solar Cell ◽  
Small Molecule ◽  
Organic Solar Cell ◽  
Highly Efficient

A high-performance solution-processed small molecule: alkylselenophene-substituted benzodithiophene organic solar cell

2014 ◽  
Vol 2 (25) ◽  
pp. 4937-4946 ◽  
Author(s):  
Yu Jin Kim ◽  
Jang Yeol Baek ◽  
Jong-jin Ha ◽  
Dae Sung Chung ◽  
Soon-Ki Kwon ◽  
...  
Keyword(s):  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Small Molecule ◽  
Light Absorption ◽  
Organic Solar Cell ◽  
High Performance ◽  
Power Conversion ◽  
Strong Light ◽  
Homo Level ◽  
Photovoltaic Characteristics

A novel small molecule with alkylselenophene-substituted benzodithiophene unit,BDTSe-TTPD, showed strong light absorption, low HOMO level and photovoltaic characteristics with power conversion efficiency as high as 4.37%.

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