Transport efficiency imaging in multi-junction solar cells by luminescence analysis
- Resource Type
- Conference
- Authors
- Xu, Hao; Delamarre, Amaury; Jia, Jieyang; Jeco, Bernice Mae F. Yu; Watanabe, Kentaroh; Okada, Yoshitaka; Guillemoles, Jean-Francois; Nakano, Yoshiaki; Sugiyama, Masakazu
- Source
- 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC) Photovoltaic Energy Conversion (WCPEC), 2018 IEEE 7th World Conference on. :2261-2265 Jun, 2018
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Power, Energy and Industry Applications
Luminescence
Photovoltaic cells
Current measurement
Resistance
Lighting
Junctions
Voltage measurement
multi-junction solar cell
transport efficiency
luminescence mapping
light beam induced current
series resistance
- Language
Multi-junction solar cells are currently the efficiency leaders among all types of solar cells. However, efficiencies of multi-junction solar cells are limited by various series resistance when they are illuminated under high concentrations. In this paper, we provide a robust method to obtain the current transport efficiency mapping for a precise and rapid measurement of resistance effect using luminescence characterization. We verified the method on a triple-junction solar cell with illuminations on all subcells. The results successfully matched with both electrical measurement and simulation results. Light beam induced current (LBIC) measurement is used for the first time to compare with the luminescence mapping. Both methods show a similar profile of transport efficiency.