Band-Gap Engineering in ZnO-MgO Films Prepared by Combustion Flame Pyrolysis of Solution Precursors

Kavitha, R.; Jayaram, Vikram

doi:10.1007/s11664-007-0201-x

Cited by 10 publications

(5 citation statements)

References 22 publications

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“…The phenomena of two absorption edges become more pronounced when MgO cycle ratios increase to 50 and 67%. The tunable absorption edge by adjusting the MgO doping ratio is due to higher MgO mole ratios in the Mg x Zn (1– x ) O alloy phase and is consistent with previously reported results. ,,− ,− …”

Section: Resultssupporting

confidence: 91%

Nanometer-Thick Mg_xZn_(1–x)O Ternary Films for Photovoltaics

Peng

Mane

Elam

2020

ACS Appl. Nano Mater.

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Owing to their tunable bandgap with the concentration of the Mg dopant, magnesium−zinc oxide (Mg x Zn (1−x) O) ternary nanometer-thick thin films have been widely studied for applications in the fields of microelectronics and optoelectronics. There are a few reports about the promise of using atomic layer deposition (ALD) to synthesize Mg x Zn (1−x) O for applications in photovoltaics. The synthesis−structure−property relationship of Mg x Zn (1−x) O ALD thin films is not yet clear. In this work, we present a systematic study about the growth behavior of Mg x Zn (1−x) O nanometer thin films by ALD by using in-situ quartz crystal microbalance analysis and a set of ex-situ analyses. We employed diethylzinc (DEZ), biscyclopentadienyl-magnesium (MgCp 2 ), and H 2 O as the precursors for ZnO and MgO ALD chemistries in our study. We find that the nucleation of ZnO on the MgO-doped ZnO surface can be accelerated at 200 °C but be delayed at 120 °C in the growth of Mg x Zn (1−x) O. The crystal structure and optical properties of Mg x Zn (1−x) O ALD films are also different at growth temperatures of 200 and 120 °C. Such understanding can help rationally choose the deposition conditions for ALD Mg x Zn (1−x) O nanoscale thin films in various applications.

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Section: Resultssupporting

confidence: 91%

Nanometer-Thick Mg_xZn_(1–x)O Ternary Films for Photovoltaics

Peng

Mane

Elam

2020

ACS Appl. Nano Mater.

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“…Magnesium doping has the opposite effect, leading to a decrease of the c-axis lattice parameter and increase of the a-axis parameter with rising Mg 2+ content x of the films (Fig. 2a and b) in accordance with earlier results, 1,32,39 also closely conserving the unit cell volume. 1 A linear relation…”

Section: Identification Of Mn 2+ Ions Incorporated At Wurtzite and Zi...supporting

confidence: 91%

“…Although the ionic radii of Zn 2+ (0.75 Å), Mn 2+ (0.80 Å) and Mg 2+ (0.72 Å) differ only slightly, the ZnO unit cell shows clearly measurable changes in XRD. 31,32 Fig. 1 and 2 show selected XRD patterns and the dependence of the c-and a-axis lattice parameters of the Zn 1Àx Mg x O:Mn thin film samples on the magnesium content x in PLD target for two Mn 2+ concentrations c Mn and various values of the oxygen partial pressure p O 2 .…”

Section: Structural Characterizationmentioning

confidence: 99%

Local zincblende coordination in heteroepitaxial wurtzite Zn_1−xMg_xO:Mn thin films with 0.01 ≤ x ≤ 0.04 identified by electron paramagnetic resonance

et al. 2015

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“…The advantage of flame-based coating methods is the significantly lower facility costs compared to vacuum coating equipment with an equivalent coating performance [8]. The advantages compared to classical CVD [9,10]…”

Section: Ccvd Technologymentioning

confidence: 99%

Flame coatings by CCVD (Pyrosil) for R2R applications

Schimanski

Kretzschmar²

2022

Vak Forsch Prax

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SummaryMost optical, electrical, mechanical or biological active thin films are deposited using the well known and established vacuum based physical vapor deposition and chemical vapor deposition methods. The deposition of thin functional layers under atmospheric pressure conditions is an attractive alternative for especially large‐area coatings like roll to roll applications (R2R). In recent years many different methods have been established for various applications. Particularly the flame‐based techniques offer a cost‐effective solution.The basic principles of the flame‐based deposition techniques are shown and the technical realization is given by means of selected examples of the current research and developments. The formation of silicone oxide layers with a wide range of properties is investigated in detail. Applications like adhesion promotion, optical effective and barrier layers are reviewed.

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Band-Gap Engineering in ZnO-MgO Films Prepared by Combustion Flame Pyrolysis of Solution Precursors

Cited by 10 publications

References 22 publications

Nanometer-Thick Mg_xZn_(1–x)O Ternary Films for Photovoltaics

Nanometer-Thick Mg_xZn_(1–x)O Ternary Films for Photovoltaics

Local zincblende coordination in heteroepitaxial wurtzite Zn_1−xMg_xO:Mn thin films with 0.01 ≤ x ≤ 0.04 identified by electron paramagnetic resonance

Flame coatings by CCVD (Pyrosil) for R2R applications

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Band-Gap Engineering in ZnO-MgO Films Prepared by Combustion Flame Pyrolysis of Solution Precursors

Cited by 10 publications

References 22 publications

Nanometer-Thick MgxZn(1–x)O Ternary Films for Photovoltaics

Nanometer-Thick MgxZn(1–x)O Ternary Films for Photovoltaics

Local zincblende coordination in heteroepitaxial wurtzite Zn1−xMgxO:Mn thin films with 0.01 ≤ x ≤ 0.04 identified by electron paramagnetic resonance

Flame coatings by CCVD (Pyrosil) for R2R applications

Contact Info

Product

Resources

About

Nanometer-Thick Mg_xZn_(1–x)O Ternary Films for Photovoltaics

Nanometer-Thick Mg_xZn_(1–x)O Ternary Films for Photovoltaics

Local zincblende coordination in heteroepitaxial wurtzite Zn_1−xMg_xO:Mn thin films with 0.01 ≤ x ≤ 0.04 identified by electron paramagnetic resonance