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Effects of Ag2O Nanosheets on the Structural, Optical, and Dielectric Properties of GeO2 Stacked Layers
Physica Status Solidi (B) - Basic Solid State Physics ( IF 1.5 ) Pub Date : 2021-02-19 , DOI: 10.1002/pssb.202000578 Seham R. Alharbi 1 , A. F. Qasrawi 2, 3 , Sabah E. Algarni 1
Physica Status Solidi (B) - Basic Solid State Physics ( IF 1.5 ) Pub Date : 2021-02-19 , DOI: 10.1002/pssb.202000578 Seham R. Alharbi 1 , A. F. Qasrawi 2, 3 , Sabah E. Algarni 1
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Herein, the effects of insertion of Ag2O nanosheets of thicknesses 25–75 nm between stacked layers of GeO2 on the structural, morphological, and optical properties of germanium dioxide are explored. While the stacking of GeO2/Ag2O/GeO2 layers does not alter the amorphous nature of the structure, significant effects on the transmittance, reflectance, absorption coefficient, Urbach's tails, and dielectric constant are observed. Silver oxide nanosheets successfully enhance the light absorbability of germanium dioxide in the visible and the infrared (IR) range of light. The light absorbability is increased by more than 12 times after the insertion of 75 nm‐thick Ag2O nanosheets. In addition, a widening in Urbach's tails and narrowing in the indirect bandgap of GeO2 are detected as a result of increasing Ag2O layer thickness. The dielectric constant and optical conductivity are also increased by ≈59.6% and 191.4% in the IR range of light. The enhancement in the optical properties of GeO2 that results from the insertion of Ag2O nanosheets makes germanium dioxide more appropriate for optoelectronic applications.
中文翻译：
Ag2O纳米片对GeO2堆叠层的结构，光学和介电性能的影响
在本文中，探索了厚度为25-75 nm的Ag 2 O纳米片在GeO 2的堆叠层之间的插入对二氧化锗的结构，形态和光学性质的影响。尽管GeO 2 / Ag 2 O / GeO 2层的堆叠不会改变结构的非晶性质，但观察到对透射率，反射率，吸收系数，Urbach尾部和介电常数的显着影响。氧化银纳米片成功地提高了可见光和红外（IR）范围内的二氧化锗的光吸收能力。插入75 nm厚的Ag 2后，吸光率提高了12倍以上O纳米片。另外，由于Ag 2 O层厚度的增加，检测到了Urbach尾巴的变宽和GeO 2的间接带隙变窄。在红外光范围内，介电常数和光导率也分别提高了约59.6％和191.4％。Ag 2 O纳米片的插入导致GeO 2光学性能的增强，使得二氧化锗更适合光电应用。
更新日期：2021-02-19
中文翻译：
Ag2O纳米片对GeO2堆叠层的结构，光学和介电性能的影响
在本文中，探索了厚度为25-75 nm的Ag 2 O纳米片在GeO 2的堆叠层之间的插入对二氧化锗的结构，形态和光学性质的影响。尽管GeO 2 / Ag 2 O / GeO 2层的堆叠不会改变结构的非晶性质，但观察到对透射率，反射率，吸收系数，Urbach尾部和介电常数的显着影响。氧化银纳米片成功地提高了可见光和红外（IR）范围内的二氧化锗的光吸收能力。插入75 nm厚的Ag 2后，吸光率提高了12倍以上O纳米片。另外，由于Ag 2 O层厚度的增加，检测到了Urbach尾巴的变宽和GeO 2的间接带隙变窄。在红外光范围内，介电常数和光导率也分别提高了约59.6％和191.4％。Ag 2 O纳米片的插入导致GeO 2光学性能的增强，使得二氧化锗更适合光电应用。
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