Indolo[3,2-b]carbazole-based alternating donor–acceptor copolymers: synthesis, properties and photovoltaic application

2009 ◽  
Vol 19 (41) ◽  
pp. 7730 ◽  
Author(s):  
Erjun Zhou ◽  
Shimpei Yamakawa ◽  
Yue Zhang ◽  
Keisuke Tajima ◽  
Chunhe Yang ◽  
...  
Keyword(s):  
Photovoltaic Application ◽  
Synthesis Properties ◽  
Donor Acceptor

Star-shaped benzotriindole-based donor-acceptor molecules: Synthesis, properties and application in bulk heterojunction and single-material organic solar cells

2020 ◽  
Vol 181 ◽  
pp. 108523 ◽  
Author(s):  
Dmitry O. Balakirev ◽  
Yuriy N. Luponosov ◽  
Artur L. Mannanov ◽  
Petr S. Savchenko ◽  
Yury Minenkov ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Synthesis Properties ◽  
Donor Acceptor ◽  
Single Material ◽  
Acceptor Molecules

scholarly journals Synthesis, Properties, and Design Principles of Donor–Acceptor Nanohoops

2015 ◽  
Vol 1 (6) ◽  
pp. 335-342 ◽  
Author(s):  
Evan R. Darzi ◽  
Elizabeth S. Hirst ◽  
Christopher D. Weber ◽  
Lev N. Zakharov ◽  
Mark C. Lonergan ◽  
...  
Keyword(s):  
Design Principles ◽  
Synthesis Properties ◽  
Donor Acceptor

The theoretical investigation of the opto-electronic properties of designed molecules having 2-(2-Methylene-3-oxo-indane-1-ylidene)malononitrile as end-capped acceptors

2020 ◽  
Vol 235 (6) ◽  
pp. 785-804
Author(s):  
Amina Tariq ◽  
Hina Ramzan ◽  
Syed Waqas Ahmad ◽  
Ijaz Ahmad Bhatti ◽  
Maryam Ajmal ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Density Functional ◽  
Visible Region ◽  
Potential Surfaces ◽  
Functional Theory ◽  
Photovoltaic Application ◽  
High Ionization ◽  
Donor Acceptor ◽  
Electron Transportation ◽  
Reorganization Energies

Abstract Five acceptor-donor-acceptor molecules having different core units with 2-(2-Methylene-3-oxo-indane-1-ylidene)malononitrile as end capped terminal acceptor unit were designed. The ground state geometries and electronic properties were calculated by using density functional theory (DFT) at MPW1PW91/6-31G(d,p) level of theory. The absorption spectra were computed by using time dependent DFT at MPW1PW91/6-31G(d,p) level of theory. The designed molecules have broad absorption range in visible region. M3 shows relatively lower band gap so that having high light harvesting efficiency (LHE). The molecules consider as better hole blocking materials in term of high ionization potentials. The reorganization energies calculation of M1, M2 and M4 manifests that these molecules are the optimal candidate for electron transportation. High value of Voc has been observed for molecules which would favorably contribute in power conversion efficiency. M1, M2, M4 and M5 are more stable in terms of absolute hardness and electrostatic potential surfaces. All molecules show good opto-electronic properties in the aspect of their use in photovoltaic application.

scholarly journals Opto-Electrical Properties of Composite Materials Based on Two Benzotrithiophene Copolymers and Fullerene Derivatives

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
N. Radychev ◽  
M. L. Keshtov ◽  
H. Borchert ◽  
Y. Bondarchuk ◽  
S. A. Kuklin ◽  
...  
Keyword(s):  
Carrier Transport ◽  
Visible Region ◽  
Optimization Procedure ◽  
Chemical Similarity ◽  
Photovoltaic Application ◽  
Donor Segment ◽  
Donor Acceptor ◽  
Similar Band ◽  
Synthesis Procedure ◽  
Carrier Transport Properties

Two donor–acceptor copolymers based on a benzotrithiophene acceptor unit and an electron-donor segment of 4,8-didodecyloxybenzo[1,2-b;4,5-b′]dithiophene were investigated in the view of photovoltaic application. We provided the complete synthesis procedure supported with NMR spectra of the monomers obtained. The resulting copolymers, labeled P1 and P2 in this work, exhibit strong absorption in the visible region with a similar band gap of about 2.2 eV. In spite of the chemical similarity of both copolymers, the photovoltaic and carrier transport properties of the P1- and P2-based devices demonstrated a noticeable difference. Applying an optimization procedure, a power conversion efficiency of 4.6% has been achieved for the P2/PC71BM solar cells.

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