Golam Haider

Golam Haider
The Czech Academy of Sciences | AVCR · J. Heyrovský Institute of Physical Chemistry

Ph.D. in Nano-Science and Nanotechnology

About

68
Publications
18,436
Reads
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1,231
Citations
Citations since 2017
58 Research Items
1194 Citations
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2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
Introduction
Hunting for new physical phenomena, emerging technologies, love to take challenges to circumvent the shortcomings of present technologies, etc.
Additional affiliations
July 2018 - present
J Heyrovsky Institute of Physical Chemistry
Position
  • Researcher
Description
  • 2D materials: Quantum optics, Many-body correlation, Quantum transport, Spintronics, Magneto-optics, Optoelectronics...
September 2013 - July 2017
Academia Sinica
Position
  • Researcher
September 2013 - July 2017
National Tsing Hua University
Position
  • PhD Student
Description
  • Taiwan International Graduate Program Fellow
Education
September 2013 - July 2017
National Taiwan University
Field of study
  • Physics
September 2013 - July 2017
Academia Sinica
Field of study
  • Nano-Science and Nanotechnology
August 2010 - September 2013

Publications

Publications (68)
Article
Full-text available
Hybrid quantum dot–graphene photodetectors have recently attracted substantial interest because of their remarkable performance and low power consumption. However, the performance of the device greatly depends on the interfacial states and photogenerated screening field. As a consequence, the sensitivity is limited and the response time is relative...
Article
Light-emitting diodes (LEDs) have drawn tremendous potential as a replacement of traditional lighting due to its low-power consumption and longer lifetime. Nowadays, the practical white LEDs (WLED) are contingent on the photon down-conversion of phosphors containing rare-earth elements, which limits its utility, energy, and cost efficiency. In orde...
Article
Full-text available
The occurrence of zero effective mass of electrons at the vicinity of the Dirac point is expected to create new paradigms for scientific research and technological applications, but the related discoveries are rather limited. Here, we demonstrate that a simple architecture composed of graphene quantum dots sandwiched by graphene layers can exhibit...
Article
Full-text available
Production of multi-color or multiple wavelength lasers over the full visible-color spectrum from a single chip device has widespread applications, such as super-bright solid-state lighting, color laser displays, light-based version of Wi-Fi (Li-Fi), and bio-imaging, etc. However, designing such lasing devices remains a challenging issue owing to t...
Article
A stretchable, flexible, and bendable random laser system capable of lasing in a wide range of spectrum will have many potential applications in next- generation technologies, such as visible-spectrum communication, superbright solid-state lighting, biomedical studies, fluorescence, etc. However, producing an appropriate cavity for such a wide spec...
Article
Hybrid layered materials assembled from atomically thin crystals and small molecules bring great promises in pushing the current information and quantum technologies beyond the frontiers. We demonstrate here a class of layered valley-spin hybrid (VSH) materials composed of a monolayer two-dimensional (2D) semiconductor and double-decker single mole...
Article
Full-text available
Tailoring the physicochemical properties of graphene through functionalization remains a major interest for next‐generation technological applications. However, defect formation due to functionalization greatly endangers the intrinsic properties of graphene, which remains a serious concern. Despite numerous attempts to address this issue, a compreh...
Article
Full-text available
Structural phase stability and homogeneity of the electrochemically synthesized Mn2V2O7 (MVO) on nanocarbon network structures are investigated. The cup-stacked multi-walled carbon nanotubes (CNTs) and electrolytic graphene oxide (eGO) are the networks exploited in present work. It is shown that co-electrodeposition of carbonaceous network and V2O5...
Article
Full-text available
The integration of 2D materials into future applications relies on advances in their quality and production. We here report a synthesis method that achieves ultrahigh optoelectronic performance at unprecedented fabrication scales. A mediator-assisted chemical vapor deposition process yields tungsten-disulfide (WS2) with near-unity photoluminescence...
Article
Spectroelectrochemical sensors (SPECSs) sensitive to the least amount of sample are crucial for widespread applications, including early‐stage detection of fatal diseases and other biomedical applications. However, despite the major disadvantage of biomolecule instability on noble metal nanoparticle‐assisted surface‐enhanced SPECSs, designing a sui...
Article
Full-text available
Through advanced experimental techniques on CrI3 single crystals, we derive a pressure-temperature phase diagram. We find that Tc increases to ∼66 K with pressure up to ∼3 GPa followed by a decrease to ∼10 K at 21.2 GPa. The experimental results are reproduced by theoretical calculations based on density functional theory where electron-electron in...
Article
Due to weak light-matter interaction, standard chemical vapor deposition (CVD)/exfoliated single-layer graphene-based photodetectors show low photoresponsivity (on the order of mA/W). However, epitaxial graphene (EG) offers a more viable approach for obtaining devices with good photoresponsivity. EG on 4H-SiC also hosts an interfacial buffer layer...
Preprint
Full-text available
Through advanced experimental techniques on CrI$_{3}$ single crystals, we derive a previously not discussed pressure-temperature phase diagram. We find that $T_{c}$ increases to $\sim$ 66\,K with pressure up to $\sim$ 3\,GPa followed by a decrease to $\sim$ 10\,K at 21.2\,GPa. The experimental results are reproduced by theoretical calculations base...
Article
Full-text available
Recent advancements in isolation and stacking of layered van der Waals materials have created an unprecedented paradigm for demonstrating varieties of 2D quantum materials. Rationally designed van der Waals heterostructures composed of monolayer transition‐metal dichalcogenides (TMDs) and few‐layer hBN show several unique optoelectronic features dr...
Cover Page
Full-text available
Phototransistors are extensively used in modern technology, including optical communication, imaging, etc. In article number 2000859, Golam Haider, Martin Kalbáč, Yang‐Fang Chen and co‐workers demonstrate that the synergistic effect of graphene's excellent charge mobility, the high absorption of ZnO nanoparticles, and the elasticity of Ag‐nanowires...
Article
Full-text available
Total internal reflection is one of the most important phenomena when a propagated wave strikes a medium boundary, which possesses a wide range of applications spanning from optical communication to a fluorescence microscope. It has also been widely used to demonstrate conventional laser actions with resonant cavities. Recently, cavity-free stimula...
Article
Despite being one of the most robust materials with intriguing optoelectronic properties, the practical use of single‐layer graphene (SLG) in soft‐electronic technologies is limited due to its poor native stretchability, low absorption coefficient, poor on/off ratio, etc. To circumvent these difficulties, here, a rippled gate‐tunable ultrahigh resp...
Article
Poor solubility of π-conjugated two-dimensional polymers (C2Ps) has been a significant roadblock in incorporating these emergent materials into electronic devices by simple solution processing. Here, we report a rational design of triphenylene-based building blocks that condense via a series of reversible reactions for self-error-correction and a f...
Article
Full-text available
Characterization of the type and density of defects in two-dimensional (2D) transition metal dichalcogenides (TMDs) is important as the nature of these defects strongly influences the electronic and optical properties of the material, especially its photoluminescence (PL). Defect characterization is not as straightforward as it is for graphene film...
Article
Full-text available
The dual-functional devices, which can simultaneously detect light and emit light, have a tremendous appeal for multiple applications, including display, sensors, defense, and high-speed optical communication. Despite the tremendous efforts of scientists, the progress of integration of phototransistor, where the built-in electric field separates th...
Article
Self-healing technology promises a generation of innovation in cross-cutting subjects ranging from electronic skins, wearable electronics to point-of-care biomedical sensing modules. Of late, scientists have successfully pulled off significant advances in self-healing components including sensors, energy devices, transistors, and even integrated ci...
Article
Gas sensors, which play an important role in the safety of human life, cover a wide range of applications including intelligent systems and detection of harmful and toxic gases. It is known that graphene is an ideal and attractive candidate for gas sensing due to its high surface area, excellent mechanical, electrical, optical and thermal propertie...
Article
Full-text available
During last two decades spectacular development of light emitting diodes (LEDs) has been achieved owing to their widespread application possibilities. However, traditional LEDs suffer from unavoidable energy loss due to the down conversion of photons, toxicity due to the involvement of rare-earth materials in their production, higher manufacturing...
Conference Paper
A novel nanoscale core-shell hyperbolic structure possesses a remarkably coupling effect in between the multishell composite due to the remarkable density of states than the plasmonic-based pure metal nanoparticles.
Article
Full-text available
Plasmonic material has been emerged with multi-functionalities for its remarkable tailoring light emission, reshaping density of states (DOS) and focusing subwavelength light. However, restricted by its propagation loss and narrowband resonance in nature, it is a challenge issue for plasmonic material to provide a broadband DOS to advance its appli...
Article
Flexible optoelectronic devices facilitated by piezotronic effect is desperately essential in the near future for their potential application in many different field spanning from solid state lighting to biomedical usage. Two-dimensional materials possessing extraordinary mechanical strength and semiconducting properties is essential for the realiz...
Article
Printing technology has led to a multitude of revolutions in design, conception, fabrication, and application of optoelectronics nowadays especially for wearables and one‐off devices. Recent advances range from solar cells, batteries, sensors, LEDs, displays, biomedical widgets to smart tags. Inkjet‐printed random lasers (IPRLs), demonstrated here,...
Article
With the rapid development of technology, electronic devices have become omnipresent in our daily life as it brought much convenience in every aspect of human activity. Side-by-side, the electronic waste (e-waste) has become a global environmental burden creating an ever-growing ecological problem. The transient device technology in which the devic...
Article
Towards the sustainable development, optoelectronic devices with biodegradability and biocompatibility have been a desirable but challenging issue for years. In this study, an all-biomaterial random laser device based on all-marine elements has been demonstrated. Chlorophyll and blue coral skeletons serve as gain medium and scattering centers, resp...
Article
Full-text available
Multicolor random lasing phenomena from a highly porous, nest‐like epitaxial graphene‐nanowalls geometry with different metal and semiconductor nanoparticles are demonstrated by Chi‐Te Liang, Yang‐Fang Chen and co‐workers (article number 1800382). The emitted photons from semiconductor nanoparticles suffer from multiple reflections at the verticall...
Article
Full-text available
Transient technology is deemed as a paramount breakthrough for its particular functionality that can be implemented at a specific time and then totally dissolved. Hyperbolic metamaterials (HMMs) with high wave-vector modes for negative refraction or with high photonic density of states to robustly enhance the quantum transformation efficiency repre...
Article
Organic-inorganic hybrid two dimensional (2D) perovskites have recently attracted great attention in optical and optoelectronic applications due to their inherent natural quantum-well structure. We report the growth of high quality millimeter-sized single crystals belonging to homologous two-dimensional (2D) hybrid organic-inorganic Ruddelsden-Popp...
Article
Numerous investigations of photon upconversion in lanthanide doped upconversion nanoparticles (UCNPs) have led to its application in the fields of bioimaging, biodetection, cancer therapy, displays and energy conversion. Herein, we demonstrate a new approach towards lanthanide doped UCNPs and graphene hybrid planar and rippled structure photodetect...
Article
Full-text available
Random laser with intrinsically uncomplicated fabrication processes, high spectral radiance, angle-free emission, and conformal onto freeform surfaces is in principle ideal for a variety of applications, ranging from lighting to identification systems. In this work, a white random laser (White-RL) with high-purity and high-stability is designed, fa...
Article
Carbon dots emerge as popular materials in various research fields, including biological and photovoltaic areas, while there lacks significant reports related to their applications in laser devices, which play a significant role in our daily life. In this work, we demonstrate the first controllable random laser assisted by the surface plasmon effec...
Article
Full-text available
Hyperbolic metamaterials have emerged as novel materials with exciting functionalities, especially for optoelectronic devices. Here, we provide the first attempt to integrate hyperbolic metamaterials with light emitting nanostructures, which enables to strongly enhance random laser action with reduced lasing threshold. Interestingly, the differenti...
Article
Toward practical applications of random lasers, controllability is a key factor. Here, magnetically controllable random lasers (MCRLs) are designed, fabricated, and demonstrated. Under a prescribed magnetic field, the MCRLs composed of stilbene 420 laser dye, TiO2 nanoparticles, and Fe3O4 nanoparticles possess magnetic controllability and switchabi...
Article
Full-text available
Lasing in self-assembled hybrid organic−inorganic lead halide perovskites semiconductors has attained intensive research for low cost and high performance optoelectronic devices due to their inherent outstanding optical response. However, to achieve the controllable laser action from a small single crystal remains as a challenging issue. Here, we p...
Conference Paper
The LEM can read the encoded signal electrically and enable the signal communication via optical detection and provides the capability for parallel reading process, which enables to raise the transmission rate of signal dramatically.
Article
We develop graphene-based multiple heterojunctions to realize sensors with a very high sensitivity (<10?ppm), ultra-fast sensing time (<10?ms), and stable repeatability. The sensing mechanism solely depends on the large change in the Fermi energy (EF) of graphene resulting from the absorbed molecules, which produces a large change in the output cur...
Article
Full-text available
A novel bistable light-emitting memory device is demonstrated not only to read the encoded signal electrically, but to enable signal communication by optical detection; this facilitates the capability for a parallel reading process and raises the transmission rate of the signal dramatically. The ON/OFF ratio can be extremely large, based on optical...
Article
Natural white light from a single component, a novel strontium(II)-based metal-organic framework, {[Sr(ntca)(H2O)2]?H2O}n (1) was achieved. Compound 1 exhibited a remarkable continuous broad band emission with a highest sensitivity at around 550 nm, making it more physically comfortable for the human eye. The continuous spectrum of compound 1 also...
Article
Stretchable devices possess a great potential in a wide range of application, such as bio-medical, wearable gadget, and smart skin, which can be integrated with human body. Due to their excellent flexibility, two-dimensional materials are expected to play an important role for the fabrication of stretchable devices. However, only a limited number o...
Data
Full-text available
Hybrid quantum dot-graphene photodetectors have recently attracted substantial interest owing to their remarkable performance and low power consumption. However, the performance of the device greatly depends on the interfacial states and photogenerated screening field. As a consequence, the sensitivity is limited and the response time is relatively...
Article
The self-assembly of a three-dimensional strontium-based metal-organic framework [Sr(Hbtc)(H2O)]n (1) was achieved through the reaction of Sr(NO3)2 with a 1,2,4-benzenetricarboxylic acid (1,2,4-H3btc) ligand under hydrothermal conditions. This Sr-based metal-organic framework exhibits remarkable semiconducting behavior, as evidenced by theoretical...
Conference Paper
Full-text available
We have recently demonstrated [1] p-i-n structure diodes with the intrinsic (i) layers comprising of periodic depositions of silicon quantum dot embedded microcrystalline silicon carbide and silicon rich microcrystalline silicon carbide layers by rf (13.56 MHz) plasma enhanced chemical vapour deposition method. The rf power was toggled between 80 m...
Article
Full-text available
The influence of space charge regions on effective charge carrier lifetime in thin films and resulting opportunities for materials characterization J. Appl. Phys. 113, 044510 (2013) Detection of electrically formed photosensitive area in Ca-doped BiFeO3 thin films Appl. Phys. Lett. 102, 012908 (2013) Local photocurrent generation in thin films of t...

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