Study of electrical transport properties of ZnO thin films used as front contact of solar cells

Impedance spectroscopy (IS) is used for studying the electrical transport properties of thin films used in organic solar cells with structure ITO/HTL/active layer/cathode, where PEDOT:PSS (poly(3,4-ethylenedioxythiophene):polystyrene sulfonic acid) and CuPC (tetrasulfonated copper-phthalocyanine) were investigated as HTL (hole transport layer) and P3HT:PCBM (poly-3-hexylthiophene:phenyl-C61-butyric acid methyl ester) blends prepared from mesitylene and chlorobenzene based solutions were studied as active layer and Ag and Al were used as cathode. The study allowed determining the influence of the type of solvent used for the preparation of the active layer as well as the speed at which the solvents are removed on the carriers mobility. The effect of exposing the layer of P3HT to the air on its mobility was also studied. It was established that samples of P3HT and P3HT:PCBM prepared using mesitylene as a solvent have mobility values significantly higher than those prepared from chlorobenzene which is the solvent most frequently used. It was also determined that the mobility of carriers in P3HT films strongly decreases when this sample is exposed to air. In addition, it was found that the electrical properties of P3HT:PCBM thin films can be improved by removing the solvent slowly which is achieved by increasing the pressure inside the system of spin-coating during the film growth.

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Oxygen vacancy controlled tunable magnetic and electrical transport properties of (Li, Ni)-codoped ZnO thin films

Applied Physics Letters ◽

10.1063/1.3449122 ◽

2010 ◽

Vol 96 (23) ◽

pp. 232504 ◽

Cited By ~ 36

Author(s):

E. Senthil kumar ◽

S. Venkatesh ◽

M. S. Ramachandra Rao

Keyword(s):

Thin Films ◽

Oxygen Vacancy ◽

Transport Properties ◽

Electrical Transport ◽

Zno Thin Films ◽

Electrical Transport Properties

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Study of electrical transport properties in perovskite solar cells based on MAPI grown by physical vapor deposition

2020 47th IEEE Photovoltaic Specialists Conference (PVSC) ◽

10.1109/pvsc45281.2020.9300831 ◽

2020 ◽

Author(s):

Miguel Angel Reinoso ◽

Hebert Alexander Gomez ◽

Gerardo Gordillo Guzman

Keyword(s):

Solar Cells ◽

Transport Properties ◽

Vapor Deposition ◽

Electrical Transport ◽

Physical Vapor Deposition ◽

Perovskite Solar Cells ◽

Electrical Transport Properties

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Resistive switching in diamondoid thin films

Scientific Reports ◽

10.1038/s41598-020-76093-3 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

A. Jantayod ◽

D. Doonyapisut ◽

T. Eknapakul ◽

M. F. Smith ◽

W. Meevasana

Keyword(s):

Thin Film ◽

Thin Films ◽

Transport Properties ◽

Resistive Switching ◽

Electrical Transport ◽

Hysteresis Curve ◽

Applied Potential ◽

Electrical Transport Properties ◽

Non Volatile Memory ◽

Memory Applications

Abstract The electrical transport properties of a thin film of the diamondoid adamantane, deposited on an Au/W substrate, were investigated experimentally. The current I, in applied potential V, from the admantane-thiol/metal heterstructure to a wire lead on its surface exhibited non-symmetric (diode-like) characteristics and a signature of resistive switching (RS), an effect that is valuable to non-volatile memory applications. I(V) follows a hysteresis curve that passes twice through $$I(0)=0$$ I ( 0 ) = 0 linearly, indicating RS between two states with significantly different conductances, possibly due to an exotic mechanism.

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