OOIR: Observatory of International Research

Papers

(The H4-Index of Applied Physics Express is 26. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-05-01 to 2025-05-01.)

Article	Citations
Optically pumped lasing in a single crystal cavity of thiophene/phenylene co-oligomers grown via improved crystal growth methods in solution	65
Effective suppression of interface states in recessed-gate MIS-HEMTs by TMAH wet etching	63
Thickness dependence of the spintronic terahertz emission from Ni/Pt bilayer grown on MgO via electron beam deposition	60
Room temperature demonstration of in-materio reservoir computing for optimizing Boolean function with single-walled carbon nanotube/porphyrin-polyoxometalate composite	56
Magnetic field tuning of photoelectric and photoluminescence effects in BiFe_0.9Co_0.1O₃ thin film	55
Ferromagnetic Fe-doped InAs quantum dots with high Curie temperature	55
Lightweight and high-precision materials property prediction using pre-trained Graph Neural Networks and its application to a small dataset	48
Detecting the orbital angular momentum from speckle via convolutional neural network	46
Thermoelectric measurements of nanomaterials by nanodiamond quantum thermometry	45
One-step assembly of TA-FeIII supramolecular shell on AgNPs surface for regulating fluorescence intensity of quantum dots	45
Collective residue interactions in trimer complexes of SARS-CoV-2 spike proteins analyzed by fragment molecular orbital method	44
Revealing the quadrupole radiation of liquid gallium nanospheres	43
High throughput observation of latent images on resist using laser-based photoemission electron microscopy	40
Centimeter-scale laser lift-off of an AlGaN UVB laser diode structure grown on nano-patterned AlN	36
Femtosecond Z-scan measurement of third-order nonlinear optical response of fluorine-doped tin oxide	35
Magnetism control of thin CoFeB layers by ferroelectric polarization	35
Strong light confinement and optical force enhancement in phosphorene with acoustic plasmons	29
Formation of neuron-microelectrode junction mediated by a synapse organizer	29
Evaluation and bioparticle density correlation analysis of extended gate HEMT sensors for biological detection from microscopic view	29
Enhancement of short-wavelength range responsibility for PIN silicon photodetectors using additional fluorescent carbon quantum dots nanoparticles	29
Broadband optical wavelength conversion through four-wave mixing in W3-type AlGaAs photonic crystal waveguides	28
Vertical GaN p–n diode with deeply etched mesas by contactless photo-electrochemical etching	28
Quartz-free hydride vapor phase epitaxy for production of large size GaN-on-GaN epitaxial wafers	27
Axis thermal expansion switching in transition-metal zirconides TrZr₂ by tuning the c/a ratio	27
N-polar GaN p-n junction diodes with low ideality factors	27

Vortex structure in relaxed BaTiO₃/SrTiO₃ superlattice