Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5446573 | Energy Procedia | 2016 | 10 Pages |
Abstract
In this work we present an Emitter Wrap Through cell with Deep Grooved Base contact (EWT-DGB), designed for both 1-sun and concentrating applications. The proposed approach, which consists in a deep grooved hole array composed by holes of two alternating doping type, allows both a reduction of the cell series resistance and an increase in collection efficiency also by using relatively thick substrates with low lifetime. The measured experimental data including dark J-V characteristics, figures of merit (FOMs) under illumination and external quantum efficiency (EQE) are compared to the results of 3-D drift-diffusion TCAD numerical simulations. Moreover, the impact of the hole spacing and of process-dependent physical parameters (interface defects) on FOMs is investigated by means of simulations.
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Physical Sciences and Engineering
Energy
Energy (General)
Authors
Massimo Nicolai, Mauro Zanuccoli, Giovanni Paternoster, Giuseppe de Ceglia, Lorenza Ferrario, Pierluigi Bellutti, Enrico Sangiorgi, Claudio Fiegna,