Anomalous change of carrier transport property of ferroelectric Hf0.5Zr0.5O2 thin films in the first poling treatment

Japanese Journal of Applied Physics ◽

10.35848/1347-4065/ac48ce ◽

2022 ◽

Author(s):

Yukinori Morita ◽

Hiroyuki OTA ◽

Shinji MIGITA

Keyword(s):

Thin Films ◽

Electric Field ◽

Transport Property ◽

Carrier Transport ◽

Current Flow ◽

Discontinuity Point ◽

Voltage Sweep ◽

Current Voltage ◽

Carrier Transport Property ◽

Carrier Transport Properties

Abstract Carrier transport properties of ferroelectric Hf0.5Zr0.5O2 (HZO) thin films have been investigated on metal-ferroelectric-metal (MFM) capacitor in the first current flow of ferroelectric poling treatment. In current–voltage (I–V) measurement of MFM capacitor, a kink or discontinuity point of derivative in I–V characteristic appears, and after the cyclic voltage sweep this kink disappears. This phenomenon is different from the ferroelectric instabilities after several thousand or million voltage cycle applies reported as the wake-up and fatigue. From the analysis using Poole-Frenkel plot of I–V characteristics, it is suggested that irreversible trap generation by electric field apply occurs in poling treatment.

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Effect of electrically degenerated layer on the carrier transport property of ZnO epitaxial thin films

Applied Surface Science ◽

10.1016/j.apsusc.2008.02.126 ◽

2008 ◽

Vol 254 (19) ◽

pp. 6248-6251 ◽

Cited By ~ 11

Author(s):

S. Sakamoto ◽

T. Oshio ◽

A. Ashida ◽

T. Yoshimura ◽

N. Fujimura

Keyword(s):

Thin Films ◽

Transport Property ◽

Carrier Transport ◽

Epitaxial Thin Films ◽

Carrier Transport Property

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Comparative Study of Photocarrier Dynamics in CVD-deposited CuWO4, CuO, and WO3 Thin Films for Photoelectrocatalysis

Zeitschrift für Physikalische Chemie ◽

10.1515/zpch-2019-1485 ◽

2020 ◽

Vol 234 (4) ◽

pp. 699-717

Author(s):

James Hirst ◽

Sönke Müller ◽

Daniel Peeters ◽

Alexander Sadlo ◽

Lukas Mai ◽

...

Keyword(s):

Thin Films ◽

Carrier Mobility ◽

Carrier Transport ◽

Terahertz Spectroscopy ◽

Chemical Vapor ◽

Photoelectrochemical Cells ◽

Time Resolved ◽

And Diffusion ◽

Wo3 Thin Films ◽

Carrier Transport Properties

AbstractThe temporal evolution of photogenerated carriers in CuWO4, CuO and WO3 thin films deposited via a direct chemical vapor deposition approach was studied using time-resolved microwave conductivity and terahertz spectroscopy to obtain the photocarrier lifetime, mobility and diffusion length. The carrier transport properties of the films prepared by varying the copper-to-tungsten stoichiometry were compared and the results related to the performance of the compositions built into respective photoelectrochemical cells. Superior carrier mobility was observed for CuWO4 under frontside illumination.

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Quinoidal bisthienoisatin based semiconductors: Synthesis, characterization, and carrier transport property

Nano Select ◽

10.1002/nano.202000053 ◽

2020 ◽

Vol 1 (3) ◽

pp. 334-345

Author(s):

Akihiro Kohara ◽

Tsukasa Hasegawa ◽

Minoru Ashizawa ◽

Yoshihiro Hayashi ◽

Susumu Kawauchi ◽

...

Keyword(s):

Transport Property ◽

Carrier Transport ◽

Carrier Transport Property

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Multi-carrier transport properties in p-type ZnO thin films

Solid State Communications ◽

10.1016/j.ssc.2009.06.030 ◽

2009 ◽

Vol 149 (39-40) ◽

pp. 1628-1632 ◽

Cited By ~ 2

Author(s):

H.B. Ye ◽

J.F. Kong ◽

W. Pan ◽

W.Z. Shen ◽

B. Wang

Keyword(s):

Thin Films ◽

Transport Properties ◽

Carrier Transport ◽

Zno Thin Films ◽

P Type ◽

Carrier Transport Properties

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Hole Transport in Self-Organized Oligosilane Thin Films with Highly Ordered Hopping Sites

MRS Proceedings ◽

10.1557/proc-707-bb10.46.1 ◽

2001 ◽

Vol 707 ◽

Author(s):

H. Okumoto ◽

T. Yatabe ◽

A. Richter ◽

M. Shimomura ◽

A. Kaito ◽

...

Keyword(s):

Thin Films ◽

Transport Properties ◽

Carrier Transport ◽

Hole Mobility ◽

Multilayered Structure ◽

Hole Transport ◽

Conjugated Molecules ◽

Disordered Structures ◽

Self Organized ◽

Carrier Transport Properties

ABSTRACTSelf-organized oligosilane thin films possess molecular orientation normal to substrates with multilayered structure. This unique order of σ-conjugated molecules results in good hole transport properties. In the present work, carrier transport properties at low temperature are studied for 1,10-diethyldecamethylsilane polycrystalline films. Even at a temperature as low as 173 K, a time-of-flight transient photocurrent waveform showed a clear plateau and a sharp decay, whose shape is similar to that at room temperature. Their hole mobility followed Arrhe-nius type temperature dependence with a small activation energy of 0.09 eV. The hole mobility of 6.3×10-5cm-2/Vs at 193 K was more than 2 orders of magnitude higher than that of typical polysilanes, which inevitably contain disordered structures hindering smooth carrier transport.

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