Electrical Conductivity Cell for Organic Semiconductors

1964 ◽  
Vol 35 (9) ◽  
pp. 1193-1196 ◽  
Author(s):  
Paul M. LaFlamme
Keyword(s):  
Electrical Conductivity ◽  
Organic Semiconductors ◽  
Conductivity Cell

scholarly journals Electrical Conductivity of Doped Organic Semiconductors Limited by Carrier–Carrier Interactions

2020 ◽  
Vol 12 (50) ◽  
pp. 56222-56230
Author(s):  
Marten Koopmans ◽  
Miina A. T. Leiviskä ◽  
Jian Liu ◽  
Jingjin Dong ◽  
Li Qiu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Organic Semiconductors

A fast-screening method for the thermal and electrical conductivity in doped organic semiconductors.

2021 ◽  
Author(s):  
Osnat Zapata Arteaga ◽  
Aleksandr Perevedentsev ◽  
Sara Marina ◽  
Jaime Martin ◽  
Juan Sebastián Reparaz ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Organic Semiconductors ◽  
Screening Method ◽  
Fast Screening

Organic semiconductors: Simple and complex salts of 1-methyl-3-alkylimidazolium 7,7,8,8-tetracyano-p-quinodimethane

1983 ◽  
Vol 48 (1) ◽  
pp. 103-111 ◽  
Author(s):  
Miloslav Šorm ◽  
Stanislav Nešpůrek ◽  
Miloslav Procházka ◽  
Igor Koropecký
Keyword(s):  
Electrical Conductivity ◽  
Water Content ◽  
Organic Semiconductors ◽  
Alkyl Group ◽  
Specific Electrical Conductivity ◽  
Lithium Salts ◽  
Decomposition Products ◽  
Radical Salt ◽  
Complex Salts ◽  
Hydrolysis Of

By metathesis between lithium salts of 7,7,8,8-tetracyano-p-quinodimethane and 1-methyl-3-alkylimidazolium bromides, simple radical salts were prepared whose specific electrical conductivity values are c. 10-7-10-3, Ω-1 m-1, according to the donor structure. Combining these salts with neutral 7,7,8,8-tetracyano-p-quinodimethane (TCNQ°) gave complex salts with an electrical conductivity higher by 7-3 orders of magnitude which increase monotonically with increasing volume of the alkyl group. The compounds are stable in anhydrous conditions also in presence of oxygen, and if irradiated by daylight. The rate constant of hydrolysis of these salts is proportional to the water content in solution and inversely proportional to the content of neutral TCNQ° in the simple radical salt. The hydrolysis is predominantly activated by light absorbed by the decomposition products.

Effect of Electric-Field on Spin Injection Efficiency in the Organic Semiconductors

2016 ◽  
Vol 852 ◽  
pp. 704-707
Author(s):  
Yi Lin Mi ◽  
Jiang Nan Gao
Keyword(s):  
Electrical Conductivity ◽  
Electric Field ◽  
External Electric Field ◽  
Organic Semiconductors ◽  
Spin Diffusion ◽  
Diffusion Length ◽  
Spin Injection ◽  
Injection Efficiency ◽  
Conductivity Increase ◽  
Spin Diffusion Length

The spin injection efficiency in the ferromagnet/ organic semiconductors system (FM/OSE) was studied under an external electric-field. It is found that the spin injection efficiency can be strongly influenced by the spin-dependent electrical conductivity and the downstream spin diffusion length of polarons. With the increase of external electric-field, the downstream spin diffusion length increases and makes the spin-dependent electrical conductivity increase, too. So the spin injection efficiency is enhanced. When the external electric-field increases from 1 to 10 mV/μm at T=80K, the spin injection efficiency increases about 20%. It seems that the downstream spin diffusion length is an significant factor to affect the spin injection efficiency in the FM/ OSE under an external electric-field.

scholarly journals Electrical Conductivity of Organic Semiconductors at High Pressure

1964 ◽  
Vol 37 (9) ◽  
pp. 1378-1380 ◽  
Author(s):  
Yoshiya Harada ◽  
Yusei Maruyama ◽  
Ichimin Shirotani ◽  
Hiroo Inokuchi
Keyword(s):  
Electrical Conductivity ◽  
High Pressure ◽  
Organic Semiconductors

Spin Injection in a Ferromagnetic/Organic System

2012 ◽  
Vol 502 ◽  
pp. 416-420
Author(s):  
Yi Lin Mi ◽  
Feng Yan Liu ◽  
Jiang Nan Gao
Keyword(s):  
Electrical Conductivity ◽  
Electric Conductivity ◽  
Organic Semiconductors ◽  
Spin Injection ◽  
Injection System ◽  
Spin Dependence ◽  
Organic System ◽  
Injection Efficiency ◽  
Spin Polarized ◽  
Spin Polarons

Spin injection efficiency in the ferromagnet/ organic semiconductors system (FM/OSEs) was explored considering the spin dependence of the electric-conductivity induced by spin injection in the OSEs. It is known that the OSEs is spin polarized, once spin was injected from FM layer to OSEs layer. The up-spin polarons and the down-spin polarons have different density. The spin dependence of the electric-conductivity is so induced. In the literature, it was usually supposed that the electric-conductivity in the spin polarized OSEs is spin independent. So, it is crucial to reflect the physics in the spin injection. Our work shows that the spin-dependent electrical-conductivity is one of the significant factors which affect the spin injection efficiency. The spin injection efficiency increases obviously with the rising of the spin-dependent electrical-conductivity in the same spin injection system. And the effect becomes larger, when the polaron proportion increases. Furthermore, the effects of interfacial electrochemical-potential proportion on the spin injection efficiency in the heterojunction are also included.

Electrical conductivity and Seebeck coefficient of some new organic semiconductors

1993 ◽  
Vol 65-66 ◽  
pp. 371-375 ◽  
Author(s):  
V. Sunel ◽  
Mihaela Rusu ◽  
I. Caplanus ◽  
G.I. Rusu
Keyword(s):  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Organic Semiconductors
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