Growth of structure-controlled polycrystalline silicon ingots for solar cells by casting

Kozo Fujiwara, Wugen Pan, Noritaka Usami, +6

Acta Materialia

Materials ScienceEngineeringMicrofabricationOrganic Solar CellApplied Physics +5

Second-order filter response from parallel coupled glass microring resonators

Sai T. Chu, Brent E. Little, Wugen Pan, +2

IEEE Photonics Technology Letters

Wavelength ResponsePhotonicsPhase RelationshipOptical MaterialsEngineering +12

Cascaded microring resonators for crosstalk reduction and spectrum cleanup in add-drop filters

Sai T. Chu, Brent E. Little, Wugen Pan, +2

IEEE Photonics Technology Letters

PhotonicsEngineeringResonator Cross-grid TechnologyMicroring ResonatorsIntegrated Circuits +4

Shaped silicon-crystal wafers obtained by plastic deformation and their application to silicon-crystal lenses

Kazuo Nakajima, Kozo Fujiwara, Wugen Pan, +1

Nature Materials

Materials ScienceOptical MaterialsEngineeringWafer Scale ProcessingFlexible Electronics +11

Enhanced carrier extraction from Ge quantum dots in Si solar cells under strong photoexcitation

Takeshi Tayagaki, Noritaka Usami, Wugen Pan, +3

Applied Physics Letters

EngineeringCarrier Extraction MechanismPhotovoltaicsBand GapSemiconductor Nanostructures +15

Simultaneous enhanced photon capture and carrier generation in Si solar cells using Ge quantum dot photonic nanocrystals

Noritaka Usami, Wugen Pan, Takeshi Tayagaki, +5

Nanotechnology

Quantum PhotonicsEngineeringColloidal NanocrystalsPhoton CapturePlasmon-enhanced Photovoltaics +17

Floating cast method to realize high-quality Si bulk multicrystals for solar cells

Yoshitaro Nose, Isao Takahashi, Wugen Pan, +3

Journal of Crystal Growth

Materials ScienceEngineeringSolar PowerApplied PhysicsBuilding-integrated Photovoltaics +6

Ge composition dependence of properties of solar cells based on multicrystalline SiGe with microscopic compositional distribution

Wugen Pan, Kozo Fujiwara, Noritaka Usami, +3

Journal of Applied Physics

Materials ScienceElectrical EngineeringEngineeringHigher Conversion EfficiencyMulticrystalline Sige +9

Effects of formation of mini-bands in two-dimensional array of silicon nanodisks with SiC interlayer for quantum dot solar cells

Makoto Igarashi, Mohd Fairuz Budiman, Wugen Pan, +5

Nanotechnology

EngineeringPlasmon-enhanced PhotovoltaicsSilicon On InsulatorOptical Absorption CoefficientNanoelectronics +15

Polarization Characteristics of Crescent-Shaped Tensile-Strained GaAsP/AlGaAs Quantum Wire-Like Lasers

Mitsuteru Ishikawa, Wugen Pan, Yasuhisa Kaneko, +4

Japanese Journal of Applied Physics

PhotonicsEngineeringPolarization CharacteristicsCrescent-shaped Tensile-strained Gaasp/algaasSemiconductor Lasers +8