Physics and Simulation of Optoelectronic Devices XI, 2003
Directly modulated lasers (DMLs) have two high performance applications: 1310 nm 10 Gb/s uncooled... more Directly modulated lasers (DMLs) have two high performance applications: 1310 nm 10 Gb/s uncooled and 1550 2.5 Gs/s extended reach. Two key elements are gain coupled gratings and buried heterostructures. Gain coupled gratings simultaneously increase the DML's intrinsic relaxation oscillation frequency and damping, while the buried heterostructure reduces thermal chirp and parasitic capacitance. Large relaxation oscillation frequencies and reduced parasitic
Conference Record of the IEEE Photovoltaic Specialists Conference, 2013
The performance effects of silicon nanocrystals (SiNC) embedded in a silicon dioxide matrix to ac... more The performance effects of silicon nanocrystals (SiNC) embedded in a silicon dioxide matrix to act as a down-shifting (DS) layer mounted on the top surface of a polycrystalline Cu(In,Ga)Se2 solar cell are explored numerically. The DS layers are modeled by modifying the incident AM1.5G spectrum based on the absorption and emission properties of the SiNC. The effects of the DS layers as an anti-reflection coating leads to an 11.4% relative improvement in short-circuit current density under 1-sun illumination (0.1 W/cm2). Comparatively, the effect of down-shifting high-energy photons to lower energy photons showed a 4% relative short-circuit current density improvement, albeit for an optical conversion efficiency of 80%.
Physics and Simulation of Optoelectronic Devices XI, 2003
Directly modulated lasers (DMLs) have two high performance applications: 1310 nm 10 Gb/s uncooled... more Directly modulated lasers (DMLs) have two high performance applications: 1310 nm 10 Gb/s uncooled and 1550 2.5 Gs/s extended reach. Two key elements are gain coupled gratings and buried heterostructures. Gain coupled gratings simultaneously increase the DML's intrinsic relaxation oscillation frequency and damping, while the buried heterostructure reduces thermal chirp and parasitic capacitance. Large relaxation oscillation frequencies and reduced parasitic
Conference Record of the IEEE Photovoltaic Specialists Conference, 2013
The performance effects of silicon nanocrystals (SiNC) embedded in a silicon dioxide matrix to ac... more The performance effects of silicon nanocrystals (SiNC) embedded in a silicon dioxide matrix to act as a down-shifting (DS) layer mounted on the top surface of a polycrystalline Cu(In,Ga)Se2 solar cell are explored numerically. The DS layers are modeled by modifying the incident AM1.5G spectrum based on the absorption and emission properties of the SiNC. The effects of the DS layers as an anti-reflection coating leads to an 11.4% relative improvement in short-circuit current density under 1-sun illumination (0.1 W/cm2). Comparatively, the effect of down-shifting high-energy photons to lower energy photons showed a 4% relative short-circuit current density improvement, albeit for an optical conversion efficiency of 80%.
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Papers by Karin Hinzer