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ResearcherID: F-9385-2018
Scopus Author ID: 57192673161

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Employment (5)

Hong Kong Polytechnic University: Hung Hom, Hong Kong, HK

2022-10-07 to present | Postodoctoral Fellow (Applied Physics )
Employment
Source: Self-asserted source
Safayet Ahmed

The Hong Kong Polytechnic University: Kowloon, Kowloon, HK

2019-08-27 to 2022-08-31 | PhD Research Student (Applied Physics )
Employment
Source: Self-asserted source
Safayet Ahmed

Amrican International University-Bangladesh : Dhaka, Dhaka , BD

2019-01-01 to 2019-08-17 | Senior Lecturer (EEE & CoE)
Employment
Source: Self-asserted source
Safayet Ahmed

American International University Bangladesh: Dhaka, Dhaka District, BD

2016-09-17 to 2018-12-31 | Lecturer (EEE & CoE)
Employment
Source: Self-asserted source
Safayet Ahmed

American International University Bangladesh: Dhaka, Dhaka District, BD

2016-02-14 to 2016-09-16 | Teaching Assistant (EEE & CoE)
Employment
Source: Self-asserted source
Safayet Ahmed

Education and qualifications (2)

American International University Bangladesh: Dhaka, Dhaka District, BD

2015-05-13 to 2017-02-11 | M.Sc. in Electrical and Electronic Engineering (Electrical and Electronic Engineering )
Education
Source: Self-asserted source
Safayet Ahmed

American International University Bangladesh: Dhaka, Dhaka District, BD

2011-03-29 to 2015-02-28 | Bachelor of Science in Electrical & Electronic Engineering (Electrical and Electronic Engineering )
Education
Source: Self-asserted source
Safayet Ahmed

Funding (1)

Service Innovation Fund

2015-12 to 2017-12 | Contract
Access to Information (Dhaka, BD)
Source: Self-asserted source
Safayet Ahmed

Works (34)

Interlayer engineered bilayered V₂O₅ NPs as saturable absorbers for infrared ultrashort pulse generation

Optical Materials
2024-11 | Journal article
DOI: 10.1016/j.optmat.2024.116082
Contributors: Muhammad Sohail; Qaisar Hayat; Areej S. Alqarni; Nasir Ud Din; Javaid Ali; Noor Zamin Khan; Asma Noor; Ikhtisham Mehmood; Sayed Ali Khan; Safayet Ahmed
Source: check_circle
Crossref

2D Semi‐Metallic Hafnium Ditelluride: A Novel Nonlinear Optical Material for Ultrafast and Ultranarrow Photonics Applications

Small Methods
2024-02 | Journal article
DOI: 10.1002/smtd.202300239
Contributors: Safayet Ahmed; Yiyu Gan; Ahmed Mortuza Saleque; Honglei Wu; Junpeng Qiao; Md. Nahian Al Subri Ivan; Sumaiya Umme Hani; Tawsif Ibne Alam; Qiao Wen; Yuen Hong Tsang
Source: check_circle
Crossref

Nonlinear Optical Activities in Two-Dimensional Gallium Sulfide: A Comprehensive Study

ACS Nano
2022-08-23 | Journal article
DOI: 10.1021/acsnano.2c03566
Contributors: Safayet Ahmed; Ping Kwong Cheng; Junpeng Qiao; Wei Gao; Ahmed Mortuza Saleque; Md. Nahian Al Subri Ivan; Ting Wang; Tawsif Ibne Alam; Sumaiya Umme Hani; Zong Liang Guo et al.
Source: check_circle
Crossref

Stable Single‐Mode Lasing from a Hybrid Perovskite–Polymer Fiber

Advanced Optical Materials
2022-05-25 | Journal article
DOI: 10.1002/adom.202200439
Part of ISSN: 2195-1071
Part of ISSN: 2195-1071
Source: Self-asserted source
Safayet Ahmed

High-temperature solar steam generation by MWCNT-HfTe2 van der Waals heterostructure for low-cost sterilization

Nano Energy
2022-04 | Journal article
DOI: 10.1016/j.nanoen.2022.106916
Part of ISSN: 2211-2855
Source: Self-asserted source
Safayet Ahmed

Natural Porous Materials for Interfacial Solar Steam Generation toward Clean Water Production

Solar RRL
2022-04 | Journal article
DOI: 10.1002/solr.202100986
Part of ISSN: 2367-198X
Part of ISSN: 2367-198X
Source: Self-asserted source
Safayet Ahmed

Nonlinear optical properties of two-dimensional palladium ditelluride (PdTe2) and its application as aerosol jet printed saturable absorbers for broadband ultrafast photonics

Applied Materials Today
2022-03 | Journal article
DOI: 10.1016/j.apmt.2021.101296
Part of ISSN: 2352-9407
Source: Self-asserted source
Safayet Ahmed

Layer dependent second harmonic generation of two-dimensional gallium sulfide (GaS)

2D Photonic Materials and Devices V
2022-03-05 | Conference paper
DOI: 10.1117/12.2623081
Source: Self-asserted source
Safayet Ahmed

Localized surface plasmon resonance induced temperature enhancement by MWCNT-HfTe2 van der Waals heterostructure

2D Photonic Materials and Devices V
2022-03-05 | Conference paper
DOI: 10.1117/12.2623411
Source: Self-asserted source
Safayet Ahmed

Waste Egg Tray and Toner-Derived Highly Efficient 3D Solar Evaporator for Freshwater Generation

ACS Applied Materials & Interfaces
2022-02-16 | Journal article
DOI: 10.1021/acsami.1c22215
Contributors: Md. Nahian Al Subri Ivan; Ahmed Mortuza Saleque; Safayet Ahmed; Ping Kwong Cheng; Junpeng Qiao; Tawsif Ibne Alam; Yuen Hong Tsang
Source: check_circle
Crossref

Two-Dimensional Gallium Sulfide as a Novel Saturable Absorber for Broadband Ultrafast Photonics Applications

ACS Applied Materials & Interfaces
2021-12-29 | Journal article
DOI: 10.1021/acsami.1c18155
Part of ISSN: 1944-8244
Part of ISSN: 1944-8252
Source: Self-asserted source
Safayet Ahmed

Near field control for enhanced photovoltaic performance and photostability in perovskite solar cells

Nano Energy
2021-11 | Journal article
DOI: 10.1016/j.nanoen.2021.106388
Part of ISSN: 2211-2855
Source: Self-asserted source
Safayet Ahmed

Improved Nanophotonic Front Contact Design for High‐Performance Perovskite Single‐Junction and Perovskite/Perovskite Tandem Solar Cells

Solar RRL
2021-10 | Journal article
DOI: 10.1002/solr.202100509
Part of ISSN: 2367-198X
Part of ISSN: 2367-198X
Source: Self-asserted source
Safayet Ahmed

Tin telluride quantum dots as a new saturable absorber for a mode-locked Yb+ doped fiber laser

Optics & Laser Technology
2021-10 | Journal article
DOI: 10.1016/j.optlastec.2021.107258
Contributors: Junpeng Qiao; Safayet Ahmed; Ping Kwong Cheng; Long-Hui Zeng; Jia Zhao; Yuen Hong Tsang
Source: check_circle
Crossref

Solar Driven Interfacial Steam Generation Derived from Biodegradable Luffa Sponge

Advanced Sustainable Systems
2021-05 | Journal article
DOI: 10.1002/adsu.202000291
Contributors: Ahmed Mortuza Saleque; Sainan Ma; Safayet Ahmed; Mohammad Ismail Hossain; Wayesh Qarony; Yuen Hong Tsang
Source: check_circle
Crossref

Solar Evaporation: Solar Driven Interfacial Steam Generation Derived from Biodegradable Luffa Sponge (Adv. Sustainable Syst. 5/2021)

Advanced Sustainable Systems
2021-05 | Journal article
DOI: 10.1002/adsu.202170009
Part of ISSN: 2366-7486
Part of ISSN: 2366-7486
Source: Self-asserted source
Safayet Ahmed

Tin Telluride Quantum Dots as a Novel Saturable Absorber for Q‐Switching and Mode Locking in Fiber Lasers

Advanced Optical Materials
2021-03 | Journal article
DOI: 10.1002/adom.202001821
Contributors: Safayet Ahmed; Junpeng Qiao; Ping Kwong Cheng; Ahmed Mortuza Saleque; Mohammad Ismail Hossain; Long‐Hui Zeng; Jia Zhao; Wayesh Qarony; Yuen Hong Tsang
Source: check_circle
Crossref

Perovskite/perovskite planar tandem solar cells: A comprehensive guideline for reaching energy conversion efficiency beyond 30%

Nano Energy
2021-01 | Journal article
DOI: 10.1016/j.nanoen.2020.105400
Part of ISSN: 2211-2855
Source: Self-asserted source
Safayet Ahmed

Optics of Perovskite-based Highly Efficient Tandem Solar Cells

2020 IEEE Region 10 Symposium (TENSYMP)
2020 | Conference paper
DOI: 10.1109/tensymp50017.2020.9230870
Source: Self-asserted source
Safayet Ahmed

Ultrafast Yb-Doped Fiber Laser Using Few Layers of PdS2 Saturable Absorber

Nanomaterials
2020-12-06 | Journal article
DOI: 10.3390/nano10122441
Contributors: Ping Kwong Cheng; Shunxiang Liu; Safayet Ahmed; Junle Qu; Junpeng Qiao; Qiao Wen; Yuen Hong Tsang
Source: check_circle
Crossref

Utilization of group 10 2D TMDs-PdSe2 as a nonlinear optical material for obtaining switchable laser pulse generation modes

Nanotechnology
2020-10-15 | Journal article
DOI: 10.1088/1361-6528/abc1a2
Part of ISSN: 0957-4484
Part of ISSN: 1361-6528
Source: Self-asserted source
Safayet Ahmed

Photon management in perovskite solar cells by nanohole front contact

Organic, Hybrid, and Perovskite Photovoltaics XXI
2020-08-20 | Conference paper
DOI: 10.1117/12.2579343
Source: Self-asserted source
Safayet Ahmed

Influence of the TiO<sub>2</sub> Compact Electron Transport Layer on the Planar Perovskite Solar Cell Performance

2020 47th IEEE Photovoltaic Specialists Conference (PVSC)
2020-06-14 | Conference paper
DOI: 10.1109/pvsc45281.2020.9300875
Source: Self-asserted source
Safayet Ahmed

A new device architecture with embedded gate oxide gate work function for double gate MOSFETs

1st International Conference on Robotics, Electrical and Signal Processing Techniques, ICREST 2019
2019 | Conference paper
DOI: 10.1109/ICREST.2019.8644078
EID:

2-s2.0-85063099644
Contributors: Ahsan-Uz-Zaman, M.; Ahmed, S.; Ali, M.T.
Source: Self-asserted source
Safayet Ahmed via Scopus - Elsevier

A smart home automation and metering system using internet of things (IoT)

1st International Conference on Robotics, Electrical and Signal Processing Techniques, ICREST 2019
2019 | Conference paper
DOI: 10.1109/ICREST.2019.8644232
EID:

2-s2.0-85063107764
Contributors: Mahmud, S.; Ahmed, S.; Shikder, K.
Source: Self-asserted source
Safayet Ahmed via Scopus - Elsevier

Assistive exoskeleton for paralyzed people

1st International Conference on Robotics, Electrical and Signal Processing Techniques, ICREST 2019
2019 | Conference paper
DOI: 10.1109/ICREST.2019.8644229
EID:

2-s2.0-85063101603
Contributors: Khan, J.I.; Moshiur Rahman Songlap, K.M.; Mizan, A.M.; Farhan Sahar, M.; Ahmed, S.
Source: Self-asserted source
Safayet Ahmed via Scopus - Elsevier

Autonomous railway crack detector robot for Bangladesh: SCANOBOT

5th IEEE Region 10 Humanitarian Technology Conference 2017, R10-HTC 2017
2018 | Conference paper
DOI: 10.1109/R10-HTC.2017.8289014
EID:

2-s2.0-85047500369
Contributors: Mahfuz, N.; Dhali, O.A.; Ahmed, S.; Nigar, M.
Source: Self-asserted source
Safayet Ahmed via Scopus - Elsevier

Autonomous railway crack detector robot for bangladesh: SCANOBOT

2017 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)
2017 | Conference paper
Source: Self-asserted source
Safayet Ahmed

GaN-based Double Gate MOSFETs: Effect of gate length

IEEE Region 10 Annual International Conference, Proceedings/TENCON
2017 | Conference paper
DOI: 10.1109/TENCON.2016.7848446
EID:

2-s2.0-85015451186
Contributors: Ahmed, S.; Taher, M.I.B.; Hasan, M.T.; Islam, M.S.
Source: Self-asserted source
Safayet Ahmed via Scopus - Elsevier

GaN-based Sub-10 nm Metal-oxide-semiconductor Field-effect Transistors

Journal of Semiconductor Devices and Circuits
2017 | Journal article
Source: Self-asserted source
Safayet Ahmed

Effect of oxide thickness on GaN-based DG-MOSFETs

AIUB JOURNAL OF SCIENCE AND ENGINEERING
2016 | Journal article
Source: Self-asserted source
Safayet Ahmed

Effect of symmetrical underlap length on device performance of a GaN-based double gate MOSFET

2016 5th International Conference on Informatics, Electronics and Vision, ICIEV 2016
2016 | Conference paper
DOI: 10.1109/ICIEV.2016.7760149
EID:

2-s2.0-85007199713
Contributors: Ahmed, S.; Hasan, M.T.; Islam, M.S.
Source: Self-asserted source
Safayet Ahmed via Scopus - Elsevier

GaN-based Double Gate MOSFETs: Effect of gate length

Region 10 Conference (TENCON), 2016 IEEE
2016 | Conference paper
Source: Self-asserted source
Safayet Ahmed

Electronic speaking system for speech impaired people: Speak up

2nd International Conference on Electrical Engineering and Information and Communication Technology, iCEEiCT 2015
2015 | Conference paper
DOI: 10.1109/ICEEICT.2015.7307401
EID:

2-s2.0-84962178588
Contributors: Ahmed, S.; Islam, R.; Zishan, M.S.R.; Hasan, M.R.; Islam, M.N.
Source: Self-asserted source
Safayet Ahmed via Scopus - Elsevier

Peer review (34 reviews for 13 publications/grants)

Review activity for Chaos, solitons and fractals. (1)
Review activity for Chemical engineering journal. (6)
Review activity for Infrared physics & technology. (7)
Review activity for Journal of alloys and compounds. (1)
Review activity for Journal of environmental chemical engineering. (3)
Review activity for Journal of luminescence. (2)
Review activity for Materials today physics. (2)
Review activity for Materials today sustainability. (1)
Review activity for Micro and nanostructures. (1)
Review activity for Optical materials. (3)
Review activity for Optics and Laser Technology. (1)
Review activity for Photonics and nanostructures. (4)
Review activity for Separation and purification technology. (2)
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