Publisher:Institute of Electrical and Electronics Engineers Inc.
Series Info:2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
Type:Conference Paper
Keywords:Conversion Efficiency
,
Npn
,
Pn
,
SILVACO
,
Solar cells
,
Conversion efficiency
,
Costs
,
Efficiency
,
Open circuit voltage
,
Silicon solar cells
,
Solar cells
,
Design and simulation
,
Heavily doped silicons
,
IV characteristics
,
Light-generated carriers
,
Low-cost solar cells
,
Optical performance
,
Qualitative analysis
,
Silvaco
,
Silicon wafers
Abstract:
This paper aims to present the design and simulation of two proposed low cost solar cell structures; namely, pn and npn. Both structures are based on commercially available low cost heavily doped silicon wafers. Their operation relies on the idea of vertical generation and lateral collection of the light generated carriers. A detailed qualitative analysis of both structures is given and verified using advanced TCAD tools. The comparison is analyzed firstly regarding the illuminated IV characteristics. The open circuit voltage (V oc ), short circuit current density (J sc ), fill factor (F.F) and conversion efficiency (? c ) are calculated. Additionally, the optical performance is calculated and compared for both structures. The quantum efficiency, the spectral response and the absorption curve are compared. The presented results show that npn structure gives better electrical and optical performance than the pn one. � 2017 IEEE.
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