Anion-Dependent Molecular Doping and Charge Transport in Ferric Salt-Doped P3HT for Thermoelectric Application

2021 ◽  
Author(s):  
Lili Wu ◽  
Hui Li ◽  
Haoyu Chai ◽  
Qing Xu ◽  
Yanling Chen ◽  
...  
Keyword(s):  
Charge Transport ◽  
Ferric Salt ◽  
Molecular Doping ◽  
Thermoelectric Application

scholarly journals The impact of molecular weight, air exposure and molecular doping on the charge transport properties and electronic defects in dithienyl-diketopyrrolopyrrole-thieno[3,2-b]thiophene copolymers

2016 ◽  
Vol 4 (46) ◽  
pp. 10827-10838 ◽  
Author(s):  
Riccardo Di Pietro ◽  
Tim Erdmann ◽  
Naixiang Wang ◽  
Xuhai Liu ◽  
David Gräfe ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Charge Transport ◽  
Transport Properties ◽  
Hole Transport ◽  
Trap States ◽  
Air Exposure ◽  
Molecular Doping ◽  
Electronic Defects ◽  
The Impact

Optimization of hole transport via passivation of trap states.

Theoretical study on the charge transport and metallic conducting properties in organic complexes

2019 ◽  
Vol 21 (24) ◽  
pp. 13304-13318 ◽  
Author(s):  
Ya-Rui Shi ◽  
Yu-Fang Liu
Keyword(s):  
Charge Transfer ◽  
Electrical Properties ◽  
Charge Transport ◽  
Organic Semiconductors ◽  
Electron Acceptor ◽  
Transfer Process ◽  
Theoretical Study ◽  
Charge Transfer Process ◽  
Organic Complexes ◽  
Molecular Doping

The charge transfer process between substrate molecular and dopant always appears in doped organic semiconductors, so that molecular doping is a common method to improve the electrical properties by combining appropriate complexes of electron acceptor and donor molecules.

Naphthalenetetracarboxylic Diimide Derivatives: Molecular Structure, Thin Film Properties and Solar Cell Applications

2018 ◽  
Vol 232 (9-11) ◽  
pp. 1717-1732 ◽  
Author(s):  
Christiane Falkenberg ◽  
Markus Hummert ◽  
Rico Meerheim ◽  
Christoph Schünemann ◽  
Selina Olthof ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Electron Transport ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Film Growth ◽  
Side Chain ◽  
Film Properties ◽  
Custom Made ◽  
Molecular Doping

Abstract The effciency of organic solar cells is not only determined by their absorber system, but also strongly dependent on the performance of numerous interlayers and charge transport layers. In order to establish new custom-made materials, the study of structure-properties relationships is of great importance. This publication examines a series of naphthalenetetracarboxylic diimide molecules (NTCDI) with varying side-chain length intended for the use as n-dopable electron transport materials in organic solar cells. While all compounds basically share very similar absorption spectra and energy level positions in the desired range, the introduction of alkyl chains has a large impact on thin film growth and charge transport properties: both crystallization and the increase of conductivity by molecular doping are suppressed. This has a direct influence on the series resistance of corresponding solar cells comprising an NTCDI derivative as electron transport material (ETM) as it lowers the power conversion efficiency to ≪1%. In contrast, using the side-chain free compound it is possible to achive an efficiency of 6.5%, which is higher than the efficiency of a comparable device comprising n-doped C60 as standard ETM.

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