OOIR: Observatory of International Research

Papers

(The H4-Index of Nature Photonics is 80. 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 2020-05-01 to 2024-05-01.)

Article	Citations
Photonics for artificial intelligence and neuromorphic computing	778
Comprehensive defect suppression in perovskite nanocrystals for high-efficiency light-emitting diodes	612
Structured light	594
Deep learning for the design of photonic structures	537
Stable pure-blue hyperfluorescence organic light-emitting diodes with high-efficiency and narrow emission	464
Organic light emitters exhibiting very fast reverse intersystem crossing	361
High-efficiency, long-lifetime deep-blue organic light-emitting diodes	350
Fast spin-flip enables efficient and stable organic electroluminescence from charge-transfer states	346
A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator	320
Hertz-linewidth semiconductor lasers using CMOS-ready ultra-high-Q microresonators	277
Large-scale neuromorphic optoelectronic computing with a reconfigurable diffractive processing unit	276
Stable and low-photovoltage-loss perovskite solar cells by multifunctional passivation	272
Suppression of temperature quenching in perovskite nanocrystals for efficient and thermally stable light-emitting diodes	270
Overcoming the energy gap law in near-infrared OLEDs by exciton–vibration decoupling	259
Organic phosphors with bright triplet excitons for efficient X-ray-excited luminescence	257
Twin-field quantum key distribution over 830-km fibre	254
Quantum-size-tuned heterostructures enable efficient and stable inverted perovskite solar cells	254
Generating optical vortex beams by momentum-space polarization vortices centred at bound states in the continuum	248
Efficient and bright white light-emitting diodes based on single-layer heterophase halide perovskites	241
Perovskite-filled membranes for flexible and large-area direct-conversion X-ray detector arrays	238
High-power portable terahertz laser systems	236
Integrated optical frequency comb technologies	229
Machine learning and applications in ultrafast photonics	226
Metasurface optics for on-demand polarization transformations along the optical path	224
NIR II-responsive photon upconversion through energy migration in an ytterbium sublattice	223

CsPbBr3 perovskite detectors with 1.4% energy resolution for high-energy γ-rays	215
Photonics and thermodynamics concepts in radiative cooling	213
Efficient selenium-integrated TADF OLEDs with reduced roll-off	205
Prospects for metal halide perovskite-based tandem solar cells	204
Metasurfaces for quantum photonics	199
Strain-engineered high-responsivity MoTe2 photodetector for silicon photonic integrated circuits	179
Solution-processed green and blue quantum-dot light-emitting diodes with eliminated charge leakage	166
Twin-field quantum key distribution over a 511 km optical fibre linking two distant metropolitan areas	157
Sub-nanometre resolution in single-molecule photoluminescence imaging	156
Synergistic strain engineering of perovskite single crystals for highly stable and sensitive X-ray detectors with low-bias imaging and monitoring	152
Exceptionally stable blue phosphorescent organic light-emitting diodes	146
A compact and cost-effective hard X-ray free-electron laser driven by a high-brightness and low-energy electron beam	146
Advances in solution-processed near-infrared light-emitting diodes	145
Generalized Kramers–Kronig receiver for coherent terahertz communications	141
Ultrastable near-infrared perovskite light-emitting diodes	141
A wavelength-scale black phosphorus spectrometer	139
Sensitive, small, broadband and scalable optomechanical ultrasound sensor in silicon photonics	137
600-km repeater-like quantum communications with dual-band stabilization	137
Large-area perovskite solar cells employing spiro-Naph hole transport material	132
Optical soliton formation controlled by angle twisting in photonic moiré lattices	131
Achieving the full-wavelength phase-matching for efficient nonlinear optical frequency conversion in C(NH2)3BF4	130
Detecting ionizing radiation using halide perovskite semiconductors processed through solution and alternative methods	129
The role of host–guest interactions in organic emitters employing MR-TADF	127
Defect engineering in wide-bandgap perovskites for efficient perovskite–silicon tandem solar cells	125
Digital photoprogramming of liquid-crystal superstructures featuring intrinsic chiral photoswitches	124
The pure-quartic soliton laser	122
Bright and stable light-emitting diodes made with perovskite nanocrystals stabilized in metal–organic frameworks	121
Nanoscale terahertz scanning probe microscopy	120
Synthetic helical dichroism for six-dimensional optical orbital angular momentum multiplexing	118
Ultra-fast germanium photodiode with 3-dB bandwidth of 265 GHz	118
Directly modulated membrane lasers with 108 GHz bandwidth on a high-thermal-conductivity silicon carbide substrate	114
Electrically driven acousto-optics and broadband non-reciprocity in silicon photonics	113
Ultrapure green organic light-emitting diodes based on highly distorted fused π-conjugated molecular design	111
Mid-infrared semimetal polarization detectors with configurable polarity transition	107
Characterization of stability and challenges to improve lifetime in perovskite LEDs	103
Ultrahigh-resolution quantum-dot light-emitting diodes	102
Multispectral graphene-based electro-optical surfaces with reversible tunability from visible to microwave wavelengths	101
High-speed programmable photonic circuits in a cryogenically compatible, visible–near-infrared 200 mm CMOS architecture	101
Cation disorder engineering yields AgBiS2 nanocrystals with enhanced optical absorption for efficient ultrathin solar cells	101
Exceptional polarization purity in antiresonant hollow-core optical fibres	101
Pockels soliton microcomb	100
Low-chirp isolator-free 65-GHz-bandwidth directly modulated lasers	99
Composite fast scintillators based on high-Z fluorescent metal–organic framework nanocrystals	97
A photonic integrated quantum secure communication system	94
Dissipative solitons in photonic molecules	94
Electrically driven mid-submicrometre pixelation of InGaN micro-light-emitting diode displays for augmented-reality glasses	93
Photochemical upconversion of near-infrared light from below the silicon bandgap	92
Real-space observation of vibrational strong coupling between propagating phonon polaritons and organic molecules	92
Structured illumination microscopy using a photonic chip	90
Efficient photoinduced second-harmonic generation in silicon nitride photonics	89

Two-step absorption instead of two-photon absorption in 3D nanoprinting	86
Transverse spinning of unpolarized light	86
MINSTED fluorescence localization and nanoscopy	86
Intensity-based holographic imaging via space-domain Kramers–Kronig relations	86
Ultra-coherent Fano laser based on a bound state in the continuum	80
Progress on table-top isolated attosecond light sources	80
Optical parametric amplification by monolayer transition metal dichalcogenides	80
High harmonic generation in condensed matter	80
Ultrastrong plasmon–phonon coupling via epsilon-near-zero nanocavities	80
Strong mid-infrared photoresponse in small-twist-angle bilayer graphene	80