OOIR: Observatory of International Research

Papers

(The H4-Index of Nature Photonics is 85. 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 2020-08-01 to 2024-08-01.)

Article	Citations
Photonics for artificial intelligence and neuromorphic computing	850
Comprehensive defect suppression in perovskite nanocrystals for high-efficiency light-emitting diodes	660
Structured light	659
Deep learning for the design of photonic structures	583
Stable pure-blue hyperfluorescence organic light-emitting diodes with high-efficiency and narrow emission	500
Organic light emitters exhibiting very fast reverse intersystem crossing	385
High-efficiency, long-lifetime deep-blue organic light-emitting diodes	372
Fast spin-flip enables efficient and stable organic electroluminescence from charge-transfer states	372
Large-scale neuromorphic optoelectronic computing with a reconfigurable diffractive processing unit	324
Hertz-linewidth semiconductor lasers using CMOS-ready ultra-high-Q microresonators	309
Suppression of temperature quenching in perovskite nanocrystals for efficient and thermally stable light-emitting diodes	296
Stable and low-photovoltage-loss perovskite solar cells by multifunctional passivation	291
Quantum-size-tuned heterostructures enable efficient and stable inverted perovskite solar cells	284
Organic phosphors with bright triplet excitons for efficient X-ray-excited luminescence	281
Twin-field quantum key distribution over 830-km fibre	277
Photonics and thermodynamics concepts in radiative cooling	256
Perovskite-filled membranes for flexible and large-area direct-conversion X-ray detector arrays	256
Efficient and bright white light-emitting diodes based on single-layer heterophase halide perovskites	254
Integrated optical frequency comb technologies	253
Metasurface optics for on-demand polarization transformations along the optical path	251
Efficient selenium-integrated TADF OLEDs with reduced roll-off	249
High-power portable terahertz laser systems	247
NIR II-responsive photon upconversion through energy migration in an ytterbium sublattice	239
CsPbBr3 perovskite detectors with 1.4% energy resolution for high-energy γ-rays	239
Machine learning and applications in ultrafast photonics	236

Metasurfaces for quantum photonics	231
Prospects for metal halide perovskite-based tandem solar cells	229
Solution-processed green and blue quantum-dot light-emitting diodes with eliminated charge leakage	209
Synergistic strain engineering of perovskite single crystals for highly stable and sensitive X-ray detectors with low-bias imaging and monitoring	189
Exceptionally stable blue phosphorescent organic light-emitting diodes	173
Achieving the full-wavelength phase-matching for efficient nonlinear optical frequency conversion in C(NH2)3BF4	172
Twin-field quantum key distribution over a 511 km optical fibre linking two distant metropolitan areas	169
Ultrastable near-infrared perovskite light-emitting diodes	168
Sub-nanometre resolution in single-molecule photoluminescence imaging	166
Advances in solution-processed near-infrared light-emitting diodes	163
A wavelength-scale black phosphorus spectrometer	159
Generalized Kramers–Kronig receiver for coherent terahertz communications	158
A compact and cost-effective hard X-ray free-electron laser driven by a high-brightness and low-energy electron beam	150
Sensitive, small, broadband and scalable optomechanical ultrasound sensor in silicon photonics	149
Large-area perovskite solar cells employing spiro-Naph hole transport material	147
Defect engineering in wide-bandgap perovskites for efficient perovskite–silicon tandem solar cells	147
Optical soliton formation controlled by angle twisting in photonic moiré lattices	146
The role of host–guest interactions in organic emitters employing MR-TADF	145
600-km repeater-like quantum communications with dual-band stabilization	144
Detecting ionizing radiation using halide perovskite semiconductors processed through solution and alternative methods	143
Ultra-fast germanium photodiode with 3-dB bandwidth of 265 GHz	138
Digital photoprogramming of liquid-crystal superstructures featuring intrinsic chiral photoswitches	138
Ultrapure green organic light-emitting diodes based on highly distorted fused π-conjugated molecular design	137
Nanoscale terahertz scanning probe microscopy	131
Synthetic helical dichroism for six-dimensional optical orbital angular momentum multiplexing	131
Bright and stable light-emitting diodes made with perovskite nanocrystals stabilized in metal–organic frameworks	130
Directly modulated membrane lasers with 108 GHz bandwidth on a high-thermal-conductivity silicon carbide substrate	129
Electrically driven acousto-optics and broadband non-reciprocity in silicon photonics	126
Cation disorder engineering yields AgBiS2 nanocrystals with enhanced optical absorption for efficient ultrathin solar cells	120
Ultrahigh-resolution quantum-dot light-emitting diodes	117
Multispectral graphene-based electro-optical surfaces with reversible tunability from visible to microwave wavelengths	116
Mid-infrared semimetal polarization detectors with configurable polarity transition	114
Engineering the buried interface in perovskite solar cells via lattice-matched electron transport layer	110
Composite fast scintillators based on high-Z fluorescent metal–organic framework nanocrystals	109
High-speed programmable photonic circuits in a cryogenically compatible, visible–near-infrared 200 mm CMOS architecture	108
Characterization of stability and challenges to improve lifetime in perovskite LEDs	107
Electrically driven mid-submicrometre pixelation of InGaN micro-light-emitting diode displays for augmented-reality glasses	105
Low-chirp isolator-free 65-GHz-bandwidth directly modulated lasers	105
Pockels soliton microcomb	104
A photonic integrated quantum secure communication system	103
Hydrogen-bond-bridged intermediate for perovskite solar cells with enhanced efficiency and stability	101
Real-space observation of vibrational strong coupling between propagating phonon polaritons and organic molecules	100
Dissipative solitons in photonic molecules	99
Topological-cavity surface-emitting laser	98
Efficient photoinduced second-harmonic generation in silicon nitride photonics	98
Intensity-based holographic imaging via space-domain Kramers–Kronig relations	97
Heavy-atom engineering of thermally activated delayed fluorophores for high-performance X-ray imaging scintillators	97
High harmonic generation in condensed matter	95
Two-step absorption instead of two-photon absorption in 3D nanoprinting	93
Progress on table-top isolated attosecond light sources	92

MINSTED fluorescence localization and nanoscopy	92
Transverse spinning of unpolarized light	92
Ultrastrong plasmon–phonon coupling via epsilon-near-zero nanocavities	89
Magnetic-free silicon nitride integrated optical isolator	89
Quantum optics of soliton microcombs	88
Anomalous upconversion amplification induced by surface reconstruction in lanthanide sublattices	87
Toroidal vortices of light	87
Optical parametric amplification by monolayer transition metal dichalcogenides	87
Ultra-coherent Fano laser based on a bound state in the continuum	86
Reconfigurable metasurfaces towards commercial success	85