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Semiconductor and Material Spectroscopy Laboratory
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2020

  1. Publications
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Quantifying the Transverse-Electric-Dominant 260 nm Emission from Molecular Beam Epitaxy-Grown GaN-Quantum-Disks Embedded in AlN Nanowires: A Comprehensive Optical and …
Year: 2020
Authors: Ram Chandra Subedi, Jung-Wook Min, Somak Mitra, Kuang-Hui Li, Idris Ajia, Edgars Stegenburgs, Dalaver H Anjum, Michele Conroy, Kalani Moore, Ursel Bangert, Iman S Roqan, Tien Khee Ng, Boon S OoiACS Applied Materials & Interfaces 12 (37), 41649-41658 (2020)
  • Quantifying the Transverse-Electric-Dominant 260 nm Emission
Nanoporous GaN/n-type GaN: A Cathode Structure for ITO-Free Perovskite Solar Cells
Year: 2020
Authors: Kwang Jae Lee, Jung-Wook Min, Bekir Turedi, Abdullah Y Alsalloum, Jung-Hong Min, Yeong Jae Kim, Young Jin Yoo, Semi Oh, Namchul Cho, Ram Chandra Subedi, Somak Mitra, Sang Eun Yoon, Jong H Kim, Kwangwook Park, Tae-Hoon Chung, Sung Hoon Jung, Jong H Baek, Young Min Song, Iman S Roqan, Tien Khee Ng, Boon S Ooi, Osman M BakrACS Energy Letters 5 (10), 3295-3303 (2020)
  • Nanoporous GaN/n-type GaN: A Cathode Structure for ITO-Free Perovskite Solar Cells
GaN and InGaN nanowires prepared by metal-assisted electroless etching: Experimental and theoretical studies
Year: 2020
Authors: SA Aravindh, B Xin, S Mitra, IS Roqan, A NajarResults in Physics 19
  • GaN and InGaN nanowires prepared by metal-assisted electroless
Identifying Carrier Behavior in Ultrathin Indirect‐Bandgap CsPbX3 Nanocrystal Films for Use in UV/Visible‐Blind High‐Energy Detectors
Year: 2020
Authors: B Xin, N Alaal, S Mitra, A Subahi, Y Pak, D Almalawi, N Alwadai, ..
  • Identifying Carrier Behavior in Ultrathin Indirect‐Bandgap CsPbX3 Nanocrystal Films for Use in UV/Visible‐Blind High‐Energy Detectors
Spin-sensitive ultraviolet light-based device and method
Year: 2020
Authors: IS Roqan - US Patent App. 16/880,004, 2020
Optimized performance III-nitride-perovskite-based heterojunction photodetector via asymmetric electrode configuration
Year: 2020 DOI:10.1039/C9RA08823G
Authors: Somak Mitra, Mufasila Mumthaz Muhammed, Norah Alwadai, Dhaifallah R Almalawi, Bin Xin, Yusin Pak, Iman S Roqan
  • Optimized performance III-nitride-perovskite-based heterojunction photodetector via asymmetric electrode configuration
Meso-Zn (II) porphyrins of Tailored Functional Groups for Intensifying the Photoacoustic Signal
Year: 2020 DOI:10.1039/D0TC00369G
Authors: Amina Yasin, Vijayakumar S Nair, S Assa Aravindh, Shaheen M Sarkar, Maryam Hatamimoslehabadi, Somak Mitra, Mohd Hasbi Ab Rahim, Jeffrey La, Iman Roqan, Mashitah M Yusoff, Chandra S Yelleswarapu, Rajan Jose
  • Meso-Zn (II) porphyrins of Tailored Functional Groups for Intensifying the Photoacoustic Signal
Time–Energy Quantum Uncertainty: Quantifying the Effectiveness of Surface Defect Passivation Protocols for Low-Dimensional Semiconductors
Year: 2020 DOI:https://pubs.acs.org/doi/abs/10.1021/acsaelm.9b00578
Authors: Nasir Alfaraj, Wael Alghamdi, Meshal Alawein, Idris A Ajia, Davide Priante, Bilal Janjua, Haiding Sun, Tien Khee Ng, Boon S Ooi, Iman S Roqan, Xiaohang Li
  • Time–Energy Quantum Uncertainty: Quantifying the Effectiveness of Surface Defect Passivation Protocols for Low-Dimensional Semiconductors
Modulating Electronic Structures of Armchair GaN Nanoribbons by Chemical Functionalization under an Electric Field Effect
Year: 2020 DOI:https://pubs.acs.org/doi/abs/10.1021/acsomega.9b03841
Authors: Naresh Alaal, Iman S Roqan
  • Modulating Electronic Structures of Armchair GaN Nanoribbons by Chemical Functionalization under an Electric Field Effect
Density Functional Theory Studies of Zn12O12 Clusters Doped with Mg/Eu and Defect Complexes
Year: 2020 DOI:https://doi.org/10.1007/s10876-020-01758-y(0123456789().,-volV) (0123456789().,-volV)
Authors: SA Aravindh, IS Roqan, H Alawadhi
  • Density functional theory ZnO cluster Density of states Magnetism Optical property
Low-Temperature Crystallization Enables 21.9% Efficient Single-Crystal MAPbI3 Inverted Perovskite Solar Cells
Year: 2020 DOI:https://pubs.acs.org/doi/abs/10.1021/acsenergylett.9b02787
Authors: Abdullah Y Alsalloum, Bekir Turedi, Xiaopeng Zheng, Somak Mitra, Ayan A Zhumekenov, Kwang Jae Lee, Partha Maity, Issam Gereige, Ahmed AlSaggaf, Iman S Roqan, Omar F Mohammed, Osman M Bakr
  • Low-Temperature Crystallization Enables 21.9% Efficient Single-Crystal MAPbI3 Inverted Perovskite Solar Cells
Titanium Carbide MXene Nucleation Layer for Epitaxial Growth of High-Quality GaN Nanowires on Amorphous Substrates
Year: 2020 DOI:https://pubs.acs.org/doi/abs/10.1021/acsnano.9b09126
Authors: Aditya Prabaswara, Hyunho Kim, Jung-Wook Min, Ram Chandra Subedi, Dalaver H Anjum, Bambar Davaasuren, Kalani Moore, Michele Conroy, Somak Mitra, Iman S Roqan, Tien Khee Ng, Husam N Alshareef, Boon S Ooi
  • Titanium Carbide MXene Nucleation Layer for Epitaxial Growth of High-Quality GaN Nanowires on Amorphous Substrates
Enhanced Photoresponse of WS2 Photodetectors through Interfacial Defect Engineering Using a TiO2 Interlayer
Year: 2020 DOI:https://doi.org/10.1021/acsaelm.0c00011
Authors: Yusin Pak, Woojin Park, Naresh Alaal, Yogeenth Kumaresan, S Assa Aravindh, Somak Mitra, Bin Xin, Jung-Wook Min, Hyeonghun Kim, Namsoo Lim, Byungjin Cho, Gun-Young Jung, Muhammad M Hussain, Iman S Roqan
  • Enhanced Photoresponse of WS2 Photodetectors through Interfacial Defect Engineering Using a TiO2 Interlayer
Dark-current reduction accompanied photocurrent enhancement in p-type MnO quantum-dot decorated n-type 2D-MoS2-based photodetector
Year: 2020
Authors: Yusin Pak, Somak Mitra, Naresh Alaal, Bin Xin, Sergei Lopatin, Dhaifallah Almalawi, J-W Min, H Kim, W Kim, G-Y Jung, Iman S Roqan
  • Dark-current reduction accompanied photocurrent enhancement in p-type MnO quantum-dot decorated n-type 2D-MoS2-based photodetector
Methods and apparatuses for fabricating perovskite-based devices on cost-effective flexible conductive substrates
Year: 2020
Authors: Iman Salem ROQAN ,Norah Mohammed ALWADAI, Somak Mitra
  • Methods and apparatuses for fabricating perovskite-based devices on cost-effective flexible conductive substrates
Sub-quantum-well influence on carrier dynamics in high efficiency DUV dislocation-free AlGaN/AlGaN-based multiple-quantum-wells
Year: 2020
Authors: Idris A. Ajia, Dhaifallah Almalawi, ·        Yi Lu, Sergei Lopatin, Xiaohang Li, Zhiqiang Liu, Iman S. Roqan
  • Sub-quantum-well influence on carrier dynamics in high efficiency DUV dislocation-free AlGaN/AlGaN-based multiple-quantum-wells
Method and apparatus for fabricating high performance optoelectronic devices
Year: 2020
Authors: Somak Mitra, Iman S Roqan, Yusin Pak
Enhanced UV Emission of GaN Nanowires Functionalized by Wider Band Gap Solution-Processed p-MnO Quantum Dots
Year: 2020 DOI:doi.org/10.1021/acsami.0c07029
Authors: Dhaifallah Almalawi, Sergei Lopatin, Somak Mitra, Tahani Flemban, Alexandra-Madalina Siladie, Bruno Gayral, Bruno Daudin, Iman S. Roqan
  • III-Nitrides
  • semiconductor nanowires
  • light-emitting devices
  • p-type MnO quantum dots
  • electron energy loss spectroscopy
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