I’m Furkan Işık — material scientist
focusing on colloidal synthesis, nanocrystal optoelectronics, colloidal nanophotonics, optical gain, optoelectronic devices, nanoscience, renewable energy, catalysis
About
Materials scientist specializing in colloidal synthesis and nanocrystal optoelectronics.
Experienced researcher with a track record of publications in high-impact journals, focusing on colloidal semiconductor nanoceystals and their applications in optoelectronic devices. Skilled in advanced characterization techniques and chemical synthesis. Passionate about pushing the boundaries of nanoscience for renewable energy, optoelectronics and catalysis applications.
Projects
Experience
Researcher
Quantum Devices & Sensors Lab, Bilkent University, Ankara, Turkey
2018 — Present
Synthesis and characterization of colloidal semiconductors
Teaching
MSN-527: Quantitative Approaches in Biophysics and Life Sciences
Feb 2018 – June 2018
PHYS-101: General Physics I
Feb 2018 – June 2018
Researcher
Fuel Cell and Energy Lab, Boğaziçi University, Istanbul, Turkey
Sep 2016 – Aug 2018
Synthesis and characterization of bimetallic nanoparticles for catalysis
Research Intern
Leiden University, Netherlands
June 2015 – Sep 2015
Metals in Catalysis, Biomimetics & Inorganic Materials Group
Catalytic water oxidation on copper surfaces
Research Intern
Fuel Cell and Energy Lab, Boğaziçi University, Istanbul, Turkey
Sep 2014 – June 2015
Synthesis and characterization of PEM fuel cells
Education
Ph.D. in Materials Science and Nanotechnology
Bilkent University, Ankara, Turkey
2018 — 2024
Supervisor: Prof. Hilmi Volkan Demir
M.S. in Chemistry, CGPA: 3.77/4.00
Boğaziçi University, İstanbul, Turkey
2016 — 2018
Supervisor: Assist. Prof. Oktay Demircan
B.S. in Chemistry, CGPA: 3.06/4.00
Boğaziçi University, İstanbul, Turkey
2010 — 2016
High School Degree
İstanbul (Erkek) Highschool, İstanbul, Turkey
2005 — 2010
Conferences
Bad Honnef Physics School 2023 - Exciting nanostructures: Characterizing advanced confined systems
“Giant” Colloidal Quantum Well Heterostructures of CdSe@CdS Core@Shell Nanoplatelets Enabling Ultra-High Gain Lasing”
F. Isik, S. Delikanli, E. G. Durmusoglu, A. T. Isik, F. Shabani, H. Dehghanpour Baruj, and H. V . Demir
ICMAT 2023
“Giant” Colloidal Quantum Well Heterostructures of CdSe@CdS Core@Shell Nanoplatelets Enabling Ultra-High Gain Lasing”
F. Isik, S. Delikanli, E. G. Durmusoglu, A. T. Isik, F. Shabani, H. Dehghanpour Baruj, and H. V . Demir
UNAM NanoDay 2023
“Observation of Optical Gain from Aqueous Quantum Well Heterostructures in Water”
S. Delikanli, F. Isik, E.G. Durmusoglu, O. Erdem, F. Shabani, B. Canimkurbey, S. Kumar, H. Dehghanpour Baruj, H. V. Demir,
Best Poster and Presentation Award
UNAM NanoDay 2022
Ultra-High Gain from “Giant” Colloidal Quantum Well Heterostructures
F. Isik, S. Delikanli, E. G. Durmusoglu, A. T. Isik, F. Shabani, H. Dehghanpour Baruj, and H. V . Demir
Bad Honnef Physics School 2019 - Exciting nanostructures: Characterizing advanced confined systems
“Synthesis and Optical Properties of Colloidal Quantum Well Heterostructures”
F. Işık, F. Shabani and H. V . Demir
Best Poster Award
Contributed Projects
TUBITAK (121N395)
α-1 (1004 High-Tech Platforms Program)
TUBITAK (121N395)
Agri-Smart LEDs
TUBITAK (121C266)
Electrically-Driven Innovatively-Structured Atomically-Flat Nanocrystal QLEDs for Future Display Technologies
TUBITAK (119N343)
Highly flexible light sources of nanorod InGaN/GaN light-emitting diodes in macro to micro formats integrated with colloidal quantum dots and metal nanoparticles
TUBITAK (214Z094)
Development of Perovskite Based Superior Cathodes for Intermediate Temperature Solid Oxide Fuel Cells
First / Equally Contributing Author
Publications
F. Isik, S. Delikanli, E. G. Durmusoglu, A. T. Isik, F. Shabani, H. Dehghanpour Baruj, H. V . Demir, ““Giant” Colloidal Quantum Well Heterostructures of CdSe@CdS Core@Shell Nanoplatelets from 9.5 to 17.5 Monolayers in Thickness Enabling Ultra-High Gain Lasing” Small, 2024
S. Delikanli, F. Isik, E.G. Durmusoglu, O. Erdem, F. Shabani, B. Canimkurbey, S. Kumar, H. Dehghanpour Baruj, H. V. Demir, “Observation of Optical Gain from Aqueous Quantum Well Heterostructures in Water, ” Nanoscale, 2022
Publications
F. Isik, S. Delikanliǂ, E. G. Durmusoglu, A. T. Isik, F. Shabani, H. Dehghanpour Baruj, H. V . Demir, ““Giant” Colloidal Quantum Well Heterostructures of CdSe@CdS Core@Shell Nanoplatelets from 9.5 to 17.5 Monolayers in Thickness Enabling Ultra-High Gain Lasing” Small, 2024
M. A. Masharin, D. Khmelevskaia, V. I. Kondratiev, D. I. Markina, A. D. Utyushev, D. Dolgintsev, A. D. Dmitriev, V. A. Shahnazaryan, A. P. Pushkarev, F. Isik, I. V. Iorsh, I. A. Shelykh, H. V. Demir, A. K. Samusev, and S. V. Makarov, “Polariton lasing in Mie-resonant perovskite nanocavity” Opto-Electronic Advances, 2024
M. A. Masharin, T. Oskolkova, F. Isik, H. V . Demir, A. K. Samusev, S. V . Makarov, “Giant Ultrafast All- Optical Modulation Based on Exceptional Points in Exciton–Polariton Perovskite Metasurfaces” ACS Nano, 2024
T. Bozkaya, F. Isik, I. Bozkaya, S. Delikanli, E. Unal, H. V. Demir, “Light-sensitive monolayer-thick nanocrystal skins of face-down self-oriented colloidal quantum wells,” Nanoscale, 2023
F. Shabani, M. Ahmad, S. Kumar, S. Delikanli, F. Isik, A. Bhattacharya, A. Petrou, H. V. Demir, “Thermodynamic Silver Doping of Core/Shell Colloidal Quantum Wells Imparted with Paramagnetic Properties Emitting at Near-Infrared” Chemistry of Materials, 2023
S. Delikanli, B. Canimkurbey, P. L. Hernández-Martínez, F. Shabani, A. T. Isik, I. Ozkan, I. Bozkaya, T. Bozkaya, F. Isik, E. G. Durmusoglu, M. Izmir, H. Akgun, H. V . Demir, “On the Rational Design of Core/(Multi)-Crown Type-II Heteronanoplatelets” Journal of the American Chemical Society, 2023
H. Dehghanpour Baruj, I. Bozkaya, B. Canimkurbey, A. T. Isik, F. Shabani, S. Delikanli, S. Shendre, O. Erdem, F. Isik, H. V . Demir, “Highly‐Directional, Highly‐Efficient Solution‐Processed Light‐Emitting Diodes of All‐Face‐Down Oriented Colloidal Quantum Well Self‐Assembly,” Small, 2023
D. A. Tatarinov, S. S. Anoshkin, I. A. Tsibizov, V . Sheremet, F. Isik, A. Y . Zhizhchenko, A. B. Cherepakhin, A. A. Kuchmizhak, A. P. Pushkarev, H. V . Demir, S. V . Makarov, “High‐Quality CsPbBr3 Perovskite Films with Modal Gain above 10,000 cm−1 at Room Temperature, ” Advanced Optical Materials, 2023
A. T. Isik, F. Shabani, F. Isik, S. Kumar, S. Delikanli, H. V . Demir, “Simultaneous Dual‐Color Amplified Spontaneous Emission and Lasing from Colloidal Quantum Well Gain Media in their Own Layered Waveguide and Cavity,” Laser & Photonics Reviews, 2023
E. G. Durmusoglu, S. Hu, P. L. Hernandez-Martinez, M. Izmir, F. Shabani, M. Guo, H. Gao, F. Isik, S. Delikanli, V . Kumar Sharma, B. Liu, H. V . Demir, “High External Quantum Efficiency Light-Emitting Diodes Enabled by Advanced Heterostructures of Type-II Nanoplatelets,” ACS Nano, 2023
F. Shabani, P. L. Hernandez Martinez, N. Shermet, H. Korkut, I. Sarpkaya, H. Dehghanpour Baruj, S. Delikanli, F. Isik, E. G. Durmusoglu, H. V . Demir “Gradient Type‐II CdSe/CdSeTe/CdTe Core/Crown/Crown Heteronanoplatelets with Asymmetric Shape and Disproportional Excitonic Properties,” Small, 2023
R. A. Babunts, Y . A. Uspenskaya, N. G. Romanov, S. B. Orlinskii, G. V . Mamin, E. V . Shornikova, D. R. Yakovlev, M. Bayer, F. Isik, S. Shendre, S. Delikanli, H. V . Demir, P. G. Baranov, “High-Frequency EPR and ENDOR Spectroscopy of Mn2+ Ions in CdSe/CdMnS Nanoplatelets,” ACS Nano, 2023
M. Izmir, E. G Durmusoglu, M. Sharma, F. Shabani, F. Isik, S. Delikanli, V . Kumar Sharma, H. V . Demir, “Near-Infrared Emission from CdSe-Based Nanoplatelets Induced by Ytterbium Doping,” The Journal of Physical Chemistry C, 2023
K. Onbasli, G. Demirci, F. Isik, E. G. Durmusoglu, H. V . Demir, H. Y . Acar, “Aqueous Colloidal Nanoplatelets for Imaging and Improved ALA-Based Photodynamic Therapy of Prostate Cancer Cells,” Chemical Communications, 2023
R. Azizov, I. Sinev, F. Isik, F. Shabani, A. Pushkarev, I. Yurdakul, S. Delikanli, H. V. Demir, S. Makarov, “Direct Laser Writing of Resonant Periodic Nanostructures in Thin Light-Emitting Films of CdSe/CdZnS Core/Shell Nanoplatelets,” Applied Physics Letters, 2022
T. Erdem, Z. Soran‐Erdem, F. Isik, F. Shabani, A. F. Yazici, E. Mutlugün, N. Gaponik, H. V. Demir, “Color Enrichment Solids of Spectrally Pure Colloidal Quantum Wells for Wide Color Span in Displays, ” Advanced Optical Materials, 2022
F. Shabani, H. Dehghanpour Baruj, I. Yurdakul, S. Delikanli, N. Gheshlaghi, F. Isik, B. Liu, Y. Altintas, B. Canımkurbey, H. V. Demir, “Deep‐Red‐Emitting Colloidal Quantum Well Light‐Emitting Diodes Enabled through a Complex Design of Core/Crown/Double Shell Heterostructure,” Small, 2022
S. Delikanli, F. Isik, E.G. Durmusoglu, O. Erdem, F. Shabani, B. Canimkurbey, S. Kumar, H. Dehghanpour Baruj, H. V. Demir, “Observation of Optical Gain from Aqueous Quantum Well Heterostructures in Water, ” Nanoscale, 2022
S. Delikanli, O. Erdem, F. Isik, H. Dehghanpour Baruj, F. Shabani, H. B. Yagci, E. G. Durmusoglu, H. V. Demir, “Ultrahigh Green and Red Optical Gain Cross Sections from Solutions of Colloidal Quantum Well Heterostructures,” The Journal of Physical Chemistry Letters, 2021
S. Delikanli, F. Isik, F. Shabani, H. Dehghanpour Baruj, N. Taghipour, H. V. Demir, “Ultralow Threshold Optical Gain Enabled by Quantum Rings of Inverted Type‐I CdS/CdSe Core/Crown Nanoplatelets in the Blue,” Advanced Optical Materials, 2021
J. Maskoun, N. Gheshlaghi, F. Isik, S. Delikanli, O. Erdem, E. Y. Erdem, H. V. Demir, “Optical Microfluidic Waveguides and Solution Lasers of Colloidal Semiconductor Quantum Wells,” Advanced Materials, 2021
N. Taghipour, S. Delikanlı, S. Shendre, M. Sak, M. Li, F. Işık, B. Guzelturk, T. C. Sum, H. V. Demir, “Sub-Single Exciton Level of Stimulated Emission in Colloidal Semiconductor Quantum Wells,” Nature Communications, 2020
D. O. Tolmachev, V. Yu. Ivanov, D. R. Yakovlev, E. V. Shornikova, B. Witkowski, S. Shendre, F. Isik, S. Delikani, H. V. Demir and Manfred Bayer, “Optically Detected Magnetic Resonance in CdSe/CdMnS Nanoplatelets,” Nanoscale, 2020
R. Fainblat, S. Delikanli, L. Spee, T. Czerny, F. Işık, H. V. Demir, G. Bacher, “Impurity Incorporation and Exchange Interactions in Co2+ -Doped CdSe/CdS Core/Shell Nanoplatelets,” The Journal of Chemical Physics, 2019
C.J.M. van der Ham, F. Işık, T.W.G.M. Verhoeven, J.W. (Hans) Niemantsverdriet, D.G.H. Hetterscheid, “Activation Pathways Taking Place at Molecular Copper Precatalysts for the Oxygen Evolution Reaction,” Catalysis Today, 2017
Research Capabilities
Chemical synthesis of colloidal nanocrystals
Group II-VI nanoplatelets, quantum dots, nanorods and their heterostructures
Metallic and bimetallic nanoparticles
Optical characterization techniques
Optical Gain Measurements
Transient Absorption Measurements
Femtosecond Lasers
Optical Table Setups
UV-Vis and fluorescence spectroscopy
Quantum yield measurements
Time resolved fluorescence spectroscopy
Materials characterization and processing techniques
Synchrotron based X-ray Absorption Spectroscopy (EXAFS/XANES)
Scanning Electron Microscopy (SEM)
X-Ray Photoelectron Spectroscopy (XPS)
X-Ray Diffraction (XRD)
Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
Nuclear Magnetic Resonance (NMR)
Dynamic Light Scattering (DLS)
Fourier Transform Infrared Spectroscopy (FTIR)
Raman Spectroscopy
On-line Mass Spectrometry
Focused Ion Beam (FIB)
Electochemical characterization techniques
Cyclic Voltammetry (CV)
Chrono-Amperometry/-V oltammetry
