Achievement of More Than 25% Conversion Efficiency With Crystalline Silicon Heterojunction Solar Cell

K. Masuko, Masato Shigematsu, Taiki Hashiguchi, +12

IEEE Journal of Photovoltaics

Optical MaterialsEngineeringEnergy EfficiencyEnergy ConversionOrganic Solar Cell +21

New Interpretation of the Effect of Hydrogen Dilution of Silane on Glow-Discharged Hydrogenated Amorphous Silicon for Stable Solar Cells

Shingo Okamoto, Yoshihiro Hishikawa, Shinya Tsuda

Japanese Journal of Applied Physics

Stable Solar CellsEngineeringChemistrySilicon On InsulatorSih 2 +14

High-Quality Wide-Gap Hydrogenated Amorphous Silicon Fabricated Using Hydrogen Plasma Post-Treatment

Shingo Okamoto, Yoshihiro Hishikawa, Sadaji Tsuge, +4

Japanese Journal of Applied Physics

EngineeringOptoelectronic DevicesThin Film Process TechnologySilicon On InsulatorPlasma Processing +18

Toward stabilized 10% efficiency of large-area (>5000cm2) a-Si/a-SiGe tandem solar cells using high-rate deposition

Eiji Maruyama, Shingo Okamoto, Akira Terakawa, +3

Solar Energy Materials and Solar Cells

Electrical EngineeringEngineeringApplied PhysicsBuilding-integrated PhotovoltaicsHigh-rate Deposition +5

Deposition of high-quality <i>a</i>-Si:H by direct photodecomposition of Si2H6 using vacuum ultraviolet light

Takashi Fuyuki, Kai-Ying Du, Shingo Okamoto, +4

Journal of Applied Physics

EngineeringGlow DischargeVacuum DeviceChemistrySilicon On Insulator +14

Effects of the i-layer properties and impurity on the performance of a-Si solar cells

Yoshihiro Hishikawa, Masao Isomura, Shingo Okamoto, +2

Solar Energy Materials and Solar Cells

Electrical EngineeringI-layer PropertiesEngineeringIntrinsic ImpurityApplied Physics +5

High-Quality p-Type a-SiC Films Obtained by Using a New Doping Gas of B(CH₃)₃

Hisaki Tarui, Takao Matsuyama, Shingo Okamoto, +7

Japanese Journal of Applied Physics

Materials ScienceMaterials EngineeringElectrical EngineeringSemiconductor TechnologyEngineering +13

Towards large-area, high-efficiency a-Si/a-SiGe tandem solar cells

Shingo Okamoto, Eiji Maruyama, Akira Terakawa, +5

Solar Energy Materials and Solar Cells

Electrical EngineeringEngineeringBuilding-integrated PhotovoltaicsPhotovoltaic SystemSolar Cells +1

Characterization of the defect density and band tail of an a-Si:H i-layer for solar cells by improved CPM measurements

Manabu Sasaki, Shingo Okamoto, Yoshihiro Hishikawa, +2

Solar Energy Materials and Solar Cells

Electrical EngineeringEngineeringBand TailImproved Cpm MeasurementsApplied Physics +6

Material Control for High-Efficiency Amorphous Silicon Solar Cells

Yoshihiro Hishikawa, Manabu Sasaki, Sadaji Tsuge, +2

MRS Proceedings

Electrical EngineeringEngineeringApplied PhysicsPhotovoltaic SystemAmorphous Solid +4