Understanding Triplets and Charge Carriers in Organic Photovoltaic Materials

2021 ◽  
Author(s):  
Tracey M. Clarke
Keyword(s):  
Charge Carriers ◽  
Organic Photovoltaic ◽  
Photovoltaic Materials ◽  
Organic Photovoltaic Materials

scholarly journals SEPARAZIONE DI CARICA IN MISCELE DI MATERIALI ORGANICI: VALE LA LEGGE DI COULOMB?

2020 ◽  
Author(s):  
Guido Raos
Keyword(s):  
Theoretical Model ◽  
Charge Separation ◽  
Negative Charge ◽  
Charge Carriers ◽  
Organic Photovoltaic ◽  
Quantum Mechanical ◽  
Apparent Contradiction ◽  
Photovoltaic Materials ◽  
Organic Photovoltaic Materials ◽  
Quantum Mechanical Effects

After a brief introduction to organic photovoltaic materials, I discuss the problem of charge separation in these systems. In the best devices, the excitations produced by absorption of a photon can be converted into positive and negative charge carriers (holes and electrons, respectively) with near-100% efficiency. Such efficiencies are apparently at odds with Coulomb’s law, which would lead to change recombination due to their mutual electrostatic attraction. A theoretical model developed within my group overcomes this apparent contradiction, by taking into account quantum mechanical effects such as the delocalization of the charge carriers.

Dithieno[3,2-b:2′,3′-d]pyrrole-based hole transport materials for perovskite solar cells with efficiencies over 18%

2018 ◽  
Vol 6 (17) ◽  
pp. 7950-7958 ◽  
Author(s):  
Sally Mabrouk ◽  
Mengmeng Zhang ◽  
Zhihui Wang ◽  
Mao Liang ◽  
Behzad Bahrami ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Organic Photovoltaic ◽  
Photovoltaic Materials ◽  
Organic Photovoltaic Materials

Dithieno[3,2-b:2′,3′-d]pyrrole (DTP) derivatives are one of the most important organic photovoltaic materials due to better π-conjugation across fused thiophene rings.

Selenium-Containing Organic Photovoltaic Materials

2021 ◽  
Author(s):  
Baobing Fan ◽  
Francis Lin ◽  
Xin Wu ◽  
Zonglong Zhu ◽  
Alex K.-Y. Jen
Keyword(s):  
Organic Photovoltaic ◽  
Photovoltaic Materials ◽  
Organic Photovoltaic Materials

scholarly journals Effect of Ultraviolet Radiation on Organic Photovoltaic Materials and Devices

2019 ◽  
Vol 11 (24) ◽  
pp. 21543-21551 ◽  
Author(s):  
Jay B. Patel ◽  
Priti Tiwana ◽  
Nico Seidler ◽  
Graham E. Morse ◽  
Owen R. Lozman ◽  
...  
Keyword(s):  
Ultraviolet Radiation ◽  
Organic Photovoltaic ◽  
Photovoltaic Materials ◽  
Organic Photovoltaic Materials

The Use of Deep Learning to Fast Evaluate Organic Photovoltaic Materials

2018 ◽  
Vol 2 (1) ◽  
pp. 1800116 ◽  
Author(s):  
Wenbo Sun ◽  
Meng Li ◽  
Yong Li ◽  
Zhou Wu ◽  
Yuyang Sun ◽  
...  
Keyword(s):  
Deep Learning ◽  
Organic Photovoltaic ◽  
Photovoltaic Materials ◽  
Organic Photovoltaic Materials

scholarly journals Precise control over reduction potential of fulleropyrrolidines for organic photovoltaic materials

RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 7122-7129 ◽  
Author(s):  
M. Karakawa ◽  
T. Nagai ◽  
K. Adachi ◽  
Y. Ie ◽  
Y. Aso
Keyword(s):  
Methoxy Group ◽  
Reduction Potential ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Substitution Pattern ◽  
Precise Control ◽  
Photovoltaic Materials ◽  
Organic Photovoltaic Materials

A series of fulleropyrrolidines containing fluorine- and methoxy group were synthesized. The substitution pattern influenced the reduction potential of the fulleropyrrolidines and enabled precise control over an open circuit voltage of OPV cells.

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