IEC TS 62789:2014

Photovoltaic concentrator cell documentation

IEC TS 62789:2014 provides guidelines for the parameters to be specified for concentrator photovoltaic cells (both multijunction and single junction) and provides recommendations and references for measurement techniques. No attempt is made to determine pass/fail criteria for cells. The purpose is to define the performance and physical characteristics of concentrator cells. This specification may also be used for describing cell assemblies and receivers.

Documentation relative aux cellules photovoltaïques à concentration

L'IEC TS 62789:2014 donne des lignes directrices concernant les paramètres à spécifier pour les cellules photovoltaïques à concentration (à la fois pour les cellules multi-jonctions et à jonction simple) et fournit des recommandations et des références relatives aux techniques de mesure. Aucun essai n'est réalisé en vue de déterminer des critères d'acceptation/de rejet pour les cellules. Le but est de définir les caractéristiques de performance et les caractéristiques physiques des cellules à concentration. Cette spécification peut également être utilisée pour décrire les ensembles et les récepteurs de cellules.

General Information

• Status: Published
• Publication Date: 15-Dec-2014
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 27.160 - Solar energy engineering
• ICS: 33.120.10 - Coaxial cables. Waveguides
• Technical Committee: TC 82 - Solar photovoltaic energy systems
• Drafting Committee: WG 7 - TC 82/WG 7
• Current Stage: PPUB - Publication issued
• Start Date: 15-Feb-2015
• Completion Date: 16-Dec-2014

Standards Content (Sample)

IEC TS 62789 ®
Edition 1.0 2014-12
TECHNICAL
SPECIFICATION
SPECIFICATION
TECHNIQUE
colour
inside
Photovoltaic concentrator cell documentation

Documentation relative aux cellules photovoltaïques à concentration

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IEC TS 62789 ®
Edition 1.0 2014-12
TECHNICAL
SPECIFICATION
SPECIFICATION
TECHNIQUE
colour
inside
Photovoltaic concentrator cell documentation

Documentation relative aux cellules photovoltaïques à concentration

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX R
ICS 27.160 ISBN 978-2-8322-1944-7

– 2 – IEC TS 62789:2014 © IEC 2014
CONTENTS
FOREWORD . 4
1 Scope and object . 6
2 Normative references . 6
3 Specifications for concentrator cells . 6
4 Concentrator cell characterization . 8
4.1 Overview. 8
4.2 Product identity . 8
4.2.1 General . 8
4.2.2 Manufacturer . 9
4.2.3 Model number . 9
4.2.4 Type of cell . 9
4.3 Product description . 9
4.3.1 General . 9
4.3.2 Total chip area. 9
4.3.3 Designated illumination area . 10
4.3.4 Nominal efficiency and design irradiance . 10
4.3.5 Nominal current ratios . 11
4.3.6 Temperature coefficients . 11
4.3.7 Front metallization . 11
4.3.8 Back metallization . 11
4.3.9 Antireflection coating design . 11
4.3.10 Thickness of substrate . 11
4.4 Cell processing and use conditions . 11
4.4.1 Recommended cell operating temperature . 11
4.4.2 Maximum cell photocurrent . 12
4.4.3 Recommended cell processing temperature . 12
4.4.4 Chemical compatibilities/incompatibilities . 12
4.4.5 Storage conditions . 12
4.4.6 Recommended bonding method . 12
4.5 Graphs and tables. 12
4.5.1 Typical I-V curve . 12
4.5.2 Efficiency versus irradiance . 13
4.5.3 Vmp versus irradiance . 13
4.5.4 Quantum efficiency . 14
4.5.5 Angular responsivity . 16
4.6 Cell testing. 17
Bibliography . 18

Figure 1 – Total cell area and designated illumination area . 10
Figure 2 – Example current-voltage graph. 12
Figure 3 – Example graph of efficiency as a function of irradiance . 13
Figure 4 – Example graph showing voltage as a function of irradiance . 13
Figure 5 – Example graph of external quantum efficiency . 14
Figure 6 – Example graph showing response as a function of the angle of incidence . 17

Table 1 – Specification template . 7
Table 2 – Example tabulation of quantum efficiency data . 14

– 4 – IEC TS 62789:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PHOTOVOLTAIC CONCENTRATOR CELL DOCUMENTATION

FOREWORD
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