All Outputs (11)

Optimal Identification of Be-Doped Al0.29Ga0.71As Schottky Diode Parameters Using Dragonfly Algorithm: A Thermal Effect Study (2021)
Journal Article
Filali, W., Amrani, R., Garoudja, E., Oussalah, S., Lekoui, F., Oukerimi, Z., …Henini, M. (2021). Optimal Identification of Be-Doped Al0.29Ga0.71As Schottky Diode Parameters Using Dragonfly Algorithm: A Thermal Effect Study. Superlattices and Microstructures, 160, Article 107085. https://doi.org/10.1016/j.spmi.2021.107085

In this work, a recent heuristic method called Dragonfly Algorithm (DA) has been employed for the first time to investigate the temperature effect on the Schottky diode electrical parameters. Beryllium-doped Al0.29Ga0.71As Schottky diodes grown by mo... Read More about Optimal Identification of Be-Doped Al0.29Ga0.71As Schottky Diode Parameters Using Dragonfly Algorithm: A Thermal Effect Study.

Transformation of polarons into magnetopolarons in GaAs quantum well (2021)
Journal Article
Popov, V. G., Krishtop, V. G., Henini, M., & Portal, J. C. (2022). Transformation of polarons into magnetopolarons in GaAs quantum well. Physica E: Low-dimensional Systems and Nanostructures, 136, Article 115019. https://doi.org/10.1016/j.physe.2021.115019

An experimental study is made of electron tunneling in a resonant-tunneling diode in magnetic fields directed parallel and perpendicular to the planes of the GaAs/Al xGa1-XAs heterostructure layers. In particular, phonon replicas on the current–volta... Read More about Transformation of polarons into magnetopolarons in GaAs quantum well.

Investigation of the Effect of Substrate Orientation on the Structural, Electrical and Optical Properties of n-type GaAs1-xBix Layers Grown by Molecular Beam Epitaxy (2021)
Journal Article
Alhassan, S., de Souza, D., Alhassni, A., Almunyif, A., Alotaibi, S., Almalki, A., …Henini, M. (2021). Investigation of the Effect of Substrate Orientation on the Structural, Electrical and Optical Properties of n-type GaAs1-xBix Layers Grown by Molecular Beam Epitaxy. Journal of Alloys and Compounds, 885, Article 161019. https://doi.org/10.1016/j.jallcom.2021.161019

Current-Voltage (I-V), Capacitance-Voltage (C-V), Deep Level Transient Spectroscopy (DLTS), Laplace DLTS, Photoluminescence (PL) and Micro-Raman techniques have been employed to investigate the effect of the orientation of the substrates on the struc... Read More about Investigation of the Effect of Substrate Orientation on the Structural, Electrical and Optical Properties of n-type GaAs1-xBix Layers Grown by Molecular Beam Epitaxy.

Structural And Optical Properties Of n-Type and p-Type GaAs(1−x)Bix Thin Films Grown By Molecular Beam Epitaxy On (311)B GaAs Substrates (2021)
Journal Article
de Souza, D., Alhassan, S., Alotaibi, S., Alhassni, A., Almunyif, A., Kazakov, I. P., …Henini, M. (2021). Structural And Optical Properties Of n-Type and p-Type GaAs(1−x)Bix Thin Films Grown By Molecular Beam Epitaxy On (311)B GaAs Substrates. Semiconductor Science and Technology, 36(7), Article 075018. https://doi.org/10.1088/1361-6641/abf3d1

In this paper, we report on the structural and optical properties of n-type Si-doped and p-type Be-doped GaAs(1−x)Bix thin films grown by molecular beam epitaxy on (311)B GaAs substrates with nominal Bi content x=5.4%. Similar samples without Bi were... Read More about Structural And Optical Properties Of n-Type and p-Type GaAs(1−x)Bix Thin Films Grown By Molecular Beam Epitaxy On (311)B GaAs Substrates.

Investigation of the effects of thermal annealing on the structural, morphological and optical properties of nanostructured Mn doped ZnO thin films (2021)
Journal Article
Lekoui, F., Amrani, R., Filali, W., Garoudja, E., Sebih, L., Bakouk, I. E., …Henini, M. (2021). Investigation of the effects of thermal annealing on the structural, morphological and optical properties of nanostructured Mn doped ZnO thin films. Optical Materials, 118, Article 111236. https://doi.org/10.1016/j.optmat.2021.111236

The control of the optical properties of ZnO nanostructured thin films by using different dopant elements paves the way for the development of potential materials for photonic and optoelectronic applications. In this work manganese (Mn) doped ZnO thi... Read More about Investigation of the effects of thermal annealing on the structural, morphological and optical properties of nanostructured Mn doped ZnO thin films.

The Role of Defects on the Performance of Quantum Dot Intermediate Band Solar Cells (2021)
Journal Article
Collazos, L. J., Al Huwayz, M. M., Jakomin, R., Micha, D. N., Pinto, L. D., Kawabata, R. M. S., …Souza, P. L. (2021). The Role of Defects on the Performance of Quantum Dot Intermediate Band Solar Cells. IEEE Journal of Photovoltaics, 11(4), 1022-1031. https://doi.org/10.1109/jphotov.2021.3070433

Electrically active defects present in three InAs/GaAs quantum dots (QDs) intermediate band solar cells grown by metalorganic vapor phase epitaxy have been investigated. The devices’ structures are almost identical, differing only in the growth tempe... Read More about The Role of Defects on the Performance of Quantum Dot Intermediate Band Solar Cells.

The Role of Defects on the Performance of Quantum Dot Intermediate Band Solar Cells (2021)
Journal Article
Collazos, L. J., Al Huwayz, M. M., Jakomin, R., Micha, D. N., Dornelas Pinto, L., Kawabata, R. M., …Souza, P. L. (2021). The Role of Defects on the Performance of Quantum Dot Intermediate Band Solar Cells. IEEE Journal of Photovoltaics, 11(4), 1022-1031. https://doi.org/10.1109/JPHOTOV.2021.3070433

Electrically active defects present in three InAs/GaAs quantum dots (QDs) intermediate band solar cells grown by metalorganic vapor phase epitaxy have been investigated. The devices' structures are almost identical, differing only in the growth tempe... Read More about The Role of Defects on the Performance of Quantum Dot Intermediate Band Solar Cells.

Artificial bee colony algorithm: a novel strategy for optical constants and thin film thickness extraction using only optical transmittance spectra for photovoltaic applications (2021)
Journal Article
Garoudja, E., Amrani, R., Filali, W., Lekoui, F., Oussalah, S., Cuminal, Y., …Henini, M. (2021). Artificial bee colony algorithm: a novel strategy for optical constants and thin film thickness extraction using only optical transmittance spectra for photovoltaic applications. Optik, 241, Article 167030. https://doi.org/10.1016/j.ijleo.2021.167030

An effective approach to determine thin film thickness (d) and optical constants (n, k, ?) from transmittance spectrum with interference fringes is proposed. The developed strategy is based on applying the artificial bee colony (ABC) algorithm and... Read More about Artificial bee colony algorithm: a novel strategy for optical constants and thin film thickness extraction using only optical transmittance spectra for photovoltaic applications.

Mg:TiO2 alloy thin films based MOS capacitors grown on GaAs substrates (2021)
Journal Article
Dalal, A., Murli Manohar Dhar Dwivedi, S., Ghosh, C., Lahiri, R., Henini, M., & Mondal, A. (2021). Mg:TiO2 alloy thin films based MOS capacitors grown on GaAs substrates. Journal of Alloys and Compounds, 868, Article 159178. https://doi.org/10.1016/j.jallcom.2021.159178

Electron beam evaporation technique is employed to synthesise TiO2, Mg0.1Ti0.9O2 and Mg0.2Ti0.8O2 thin films (TFs) grown on (100) n-type GaAs substrates. Field emission gun-scanning electron microscope (FEG-SEM) results show that the TFs have a thick... Read More about Mg:TiO2 alloy thin films based MOS capacitors grown on GaAs substrates.

Luminescent MoS2 Quantum Dots with Tunable Operating Potential for Energy-Enhanced Aqueous Supercapacitors (2021)
Journal Article
Jeeva Panchu, S., Raju, K., Swart, H. C., Chokkalingam, B., Maaza, M., Henini, M., & Moodley, M. K. (2021). Luminescent MoS2 Quantum Dots with Tunable Operating Potential for Energy-Enhanced Aqueous Supercapacitors. ACS Omega, 6, 4542-4550. https://doi.org/10.1021/acsomega.0c02576

Wide band gap luminescent MoS2 quantum dots (QDs) and MoS2 nanocrystals (NCs) have been synthesized by using laser-assisted chemical vapour deposition and used as an electrode material in supercapacitors. Size-dependent properties of the MoS2 QDs and... Read More about Luminescent MoS2 Quantum Dots with Tunable Operating Potential for Energy-Enhanced Aqueous Supercapacitors.

From Cow Manure to Bioactive Carbon Dots: A Light-up Probe for Bioimaging Investigations, Glucose Detection and Potential Immunotherapy Agent for Melanoma Skin Cancer (2021)
Journal Article
Hillesheim Horst, F., Vitoria da Silva Rodrigues, C., Pimenta Rocha Carvalho, P. H., Monteiro Leite, A., Bentes Azevedo, R., Neto, B. A., …Rodrigues, M. O. (2021). From Cow Manure to Bioactive Carbon Dots: A Light-up Probe for Bioimaging Investigations, Glucose Detection and Potential Immunotherapy Agent for Melanoma Skin Cancer. RSC Advances, 2021(11), 6346-6352. https://doi.org/10.1039/D0RA10859F

Bioactive carbon dots (C-dots) with ca. 4 nm were successfully produced with singular photophysical properties, low-toxicity and interesting immunological response. The optical properties of the C-dots were investigated and the “light-up” behaviour e... Read More about From Cow Manure to Bioactive Carbon Dots: A Light-up Probe for Bioimaging Investigations, Glucose Detection and Potential Immunotherapy Agent for Melanoma Skin Cancer.