24 citations · 117 across the 17 of their papers we have counts for
17 papers
Telecom-Wavelength-Compatible Quantum Information Transcription Using Nitrogen-Vacancy Centers
B. Göblyös, S. Kollarics, R. Kucsera +5
Nitrogen-vacancy (NV) centers in diamond are a leading platform for solid-state quantum sensing and quantum information processing. While most optical studies rely on the visible f…
Transient Plastic Spin Labeling with Chlorine Dioxide
Bence G. Márkus, Sándor Kollarics, Kristóf Kály-Kullai +5
Plastic waste, being one of the most important problems for humankind, poses severe threats to ecosystems, wildlife, and human health. Tracing, quantifying, and identifying types o…
Materials and Spin Characteristics of Nanodiamonds Partially Covered with Amino Groups and Embedded with Nitrogen-Vacancy Color Centers
Nikoletta Jegenyes, Vladimir Verkhovlyuk, Szabolcs Czene +5
Fluorescent nanodiamonds (FNDs) with optically read qubits hold great potential for detecting electric and magnetic fields, temperature, and other nanoscale physicochemical quantit…
A Versatile System for Photoconductance Decay Measurement Across a Wide Range of Semiconductor Materials
A. Bojtor, D. Krisztian, G. Parada +6
Time-resolved photoconductivity is widely used to characterize non-equilibrium charge-carrier lifetime, impurity content, and solar cell efficiency in a broad range of semiconducto…
Dynamics of Photoinduced Charge Carriers in Metal-Halide Perovskites
A. Bojtor, D. Krisztian, F. Korsos +8
The measurement and description of the charge-carrier lifetime (tauc) is crucial for the wide-ranging applications of lead-halide perovskites. We present time-resolved microwave-de…
Terahertz Emission From Diamond Nitrogen-Vacancy Centers
Sándor Kollarics, Bence Gábor Márkus, Robin Kucsera +6
Coherent light sources emitting in the terahertz range are highly sought after for fundamental research and applications. THz lasers rely on achieving population inversion. We demo…
Beyond 1 ms Charge-Carrier Recombination Dynamics in the CsPbBr3 Perovskite
A. Bojtor, D. Krisztián, F. Korsós +8
Knowledge of the charge-carrier recombination lifetime, tau, is crucial for the various applications of photovoltaic perovskites. We studied the novel inorganic perovskite, CsPbBr3…
Ultra-long charge carrier recombination time in methylammonium lead halide perovskites
A. Bojtor, S. Kollarics, B. G. Markus +4
Due to their exceptional photovoltaic properties, metal halide perovskites (MHPs) are extensively studied for their potential applications in solar cells. In recent years, the powe…
Ultrahigh nitrogen-vacancy center concentration in diamond
S. Kollarics, F. Simon, A. Bojtor +19
High concentration of negatively charged nitrogen-vacancy () centers was created in diamond single crystals containing approximately 100 ppm nitrogen using electron…
Optical-microwave pump-probe studies of electronic properties in novel materials
S. Kollarics, A. Bojtor, K. Koltai +6
Combined microwave-optical pump-probe methods are emerging to study the quantum state of spin qubit centers and the charge dynamics in semiconductors. A major hindrance is the limi…
Incidence of Quantum Confinement on Dark Triplet Excitons in Carbon Nanotubes
J. Palotas, M. Negyedi, S. Kollarics +4
Photophysics of single-wall carbon nanotubes (SWCNTs) is intensively studied due to their potential application in light harvesting and optoelectronics. Excited states of SWCNTs fo…
Tuning Conductivity and Spin Dynamics in Few-Layer Graphene via In Situ Potassium Exposure
B. G. Márkus, O. Sági, S. Kollarics +7
Chemical modification, such as intercalation or doping of novel materials is of great importance for exploratory material science and applications in various fields of physics and…
Non-exponential magnetic relaxation in magnetic nanoparticles for hyperthermia
I. Gresits, Gy. Thuroczy, O. Sagi +6
Magnetic nanoparticle based hyperthermia emerged as a potential tool for treating malignant tumours. The efficiency of the method relies on the knowledge of magnetic properties of…
Ultrafast sensing of photoconductivity decay using microwave resonators
B. Gyüre-Garami, B. Blum, O. Sági +6
Microwave reflectance probed photoconductivity (or -PCD) measurement represents a contactless and non-invasive method to characterize impurity content in semiconductors. Major d…
Improved alkali intercalation of carbonaceous materials in ammonia solution
B. G. Márkus, S. Kollarics, P. Szirmai +5
Alkali intercalated graphite compounds represent a compelling modification of carbon with significant application potential and various fundamentally important phases. We report on…
Improved laser based photoluminescence on single-walled carbon nanotubes
S. Kollarics, J. Palotás, A. Bojtor +4
Photoluminescence (PL) has become a common tool to characterize various properties of single-walled carbon nanotube (SWCNT) chirality distribution and the level of tube individuali…
An optically detected magnetic resonance spectrometer with tunable laser excitation and wavelength resolved infrared detection
M. Negyedi, J. Palotás, B. Gyüre +5
We present the development and performance of an optically detected magnetic resonance (ODMR) spectrometer. The spectrometer represents advances over similar instruments in three a…