GB/T 6495.8-2025Photovoltaic devices - Part 8: Measurement of spectral responsivity of a photovoltaic(PV) device (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting.

This document is Part 8 of GB/T 6495 "Photovoltaic Devices". GB/T 6495 has already published the following parts.

---Part 1: Measurement of Photovoltaic Current-Voltage Characteristics;

---Part 1-1.Measurement of Current-Voltage Characteristics of Multijunction Photovoltaic Devices;

---Part 2: Requirements for Standard Photovoltaic Devices;

---Part 3: Measurement Principle of Ground-Based Photovoltaic Devices Based on Standard Spectral Irradiance Data;

---Part 5: Determining the Equivalent Cell Temperature (ECT) of Photovoltaic Devices Using the Open-Circuit Voltage Method;

---Part 7: Calculation Method for Spectral Mismatch Correction in Photovoltaic Device Measurements;

---Part 8: Measurement of the Spectral Response of Photovoltaic Devices;

---Part 8-1.Measurement of the Spectral Response of Multijunction Photovoltaic Devices;

---Part 9: Characteristic Classification of Solar Simulators;

---Part 10: Methods for measuring linear correlation and linearity;

---Part 11: Initial light-induced degradation test method for crystalline silicon solar cells.

This document replaces GB/T 6495.8-2002 "Photovoltaic Devices - Part 8: Measurement of Spectral Response of Photovoltaic Devices", and is consistent with GB/T 6495.8-Compared to 2002, aside from structural adjustments and editorial changes, the main technical changes are as follows.

a) The scope has been changed (see Chapter 1, Chapter 1 of the 2002 edition);

b) Added terms and definitions (see Chapter 3);

c) Added "Identifier" (see Chapter 4);

d) The "Testing" section has been revised to combine "Special Requirements for Thin Film Devices" and "Measurement of Relative Spectral Response" (see Chapter 5, 2002 edition).

Chapters 3 and 4);

e) A general description of spectral response measurements has been added (see Chapter 6);

f) The term "device" has been added (see Chapter 7);

g) Added "Spectral response measurement using a constant light source" (see Chapter 8);

h) Added "Spectral Response Measurement under Pulsed Light" (see Chapter 9);

i) Added "Measurement of Series Components" (see Chapter 10);

j) A "Report" has been added (see Chapter 11).

This document is equivalent to IEC 60904-8:2014 "Photovoltaic devices - Part 8: Measurement of spectral response of photovoltaic devices".

The following editorial changes have been made to this document.

---Adjust the scope of the chapter description;

---The reference to IEC 61646 has been removed.

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.

This document is under the jurisdiction of the National Technical Committee on Standardization of Solar Photovoltaic Energy Systems (SAC/TC90).

Introduction

GB/T 6495 proposes methods for measuring the performance of photovoltaic devices, as well as standards, value transfer, and result correction related to performance measurement.

The requirements for the classification of testing equipment, etc., have positive guiding significance for the performance measurement of photovoltaic devices such as photovoltaic cells and photovoltaic modules.

GB/T 6495 is proposed to consist of the following parts.

---Part 1: Measurement of Photovoltaic Current-Voltage Characteristics. The purpose is to specify the basic requirements for measuring the IV curve of photovoltaic devices.

---Part 1-1.Measurement of Current-Voltage Characteristics of Multijunction Photovoltaic Devices. The purpose is to specify the measurement of the IV characteristics of multijunction photovoltaic devices.

Quantification method.

---Part 1-2.Measurement of Current-Voltage Characteristics of Bifacial Photovoltaic Devices. The purpose is to specify the IV characteristics measurement of bifacial photovoltaic modules.

Quantification method.

---Parts 1-3.Measurement of Current-Voltage Characteristics of Curved Photovoltaic Devices. The purpose is to specify the measurement of the IV characteristics of curved photovoltaic devices.

Quantification method.

---Part 2: Requirements for Standard Photovoltaic Devices. The purpose is to specify the requirements for standard photovoltaic devices.

---Part 3: Measurement Principles of Ground-Based Photovoltaic Devices Based on Standard Spectral Irradiance Data. The aim is to provide standard photovoltaic irradiance data.

Degree data.

---Part 4: Procedures for Establishing Standard Photovoltaic Device Calibration Traceability. The purpose is to establish traceability for photovoltaic device calibration.

program.

---Part 5: Determining the Equivalent Cell Temperature (ECT) of Photovoltaic Devices Using the Open-Circuit Voltage Method. The aim is to define the equivalent cell temperature (ECT) of photovoltaic devices.

Method for testing the open-circuit voltage of battery temperature.

---Part 7: Calculation Method for Spectral Mismatch Correction in Photovoltaic Device Measurements. The purpose is to specify the calculation method for spectral mismatch correction.

---Part 8: Measurement of the Spectral Response of Photovoltaic Devices. The purpose is to specify the methods for measuring the spectral response.

---Part 8-1.Measurement of the Spectral Response of Multijunction Photovoltaic Devices. The purpose is to specify the measurement method for the spectral response of multijunction photovoltaic devices.

method.

---Part 9: Classification of Solar Simulator Characteristics. The purpose is to specify the classification requirements for solar simulators used to measure photovoltaic devices.

---Part 10: Methods for Measuring Linear Correlation and Linearity Characteristics. The aim is to define the linearity characteristics of photovoltaic devices and their testing.

method.

---Part 11: Test Method for Initial Light-Induced Degradation of Crystalline Silicon Solar Cells. The purpose is to specify the initial light-induced degradation test method for crystalline silicon solar cells.

Attenuation test method.

---Part 12: Measurement methods for the current-voltage (IV) characteristics of perovskite photovoltaic cells and modules. The purpose is to specify the measurement methods for the current-voltage (IV) characteristics of perovskite photovoltaic cells and modules.

Methods for measuring the IV characteristics of voltage-voltage devices.

---Part 13: Electroluminescence of Photovoltaic Modules. The purpose is to specify the testing methods for the electroluminescence of photovoltaic modules.

Note. The correspondence between each part and the IEC 60904 series of international standards is as follows.

---Part 1 corresponds to IEC 60904-1;

---Part 1-1 corresponds to IEC 60904-1-1;

---Parts 1-2 correspond to IEC 60904-1-2;

---Parts 1-3 correspond to IEC 60904-1-3;

---Part 2 corresponds to IEC 60904-2;

---Part 3 corresponds to IEC 60904-3;

---Part 4 corresponds to IEC 60904-4;

---Part 5 corresponds to IEC 60904-5;

---Part 7 corresponds to IEC 60904-7;

---Part 8 corresponds to IEC 60904-8;

---Part 8-1 corresponds to IEC 60904-8-1;

---Part 9 corresponds to IEC 60904-9;

---Part 10 corresponds to IEC 60904-10;

---Part 13 corresponds to IEC 60904-13.

The purpose of this document is to specify the procedures and methods for spectral measurement of linear and nonlinear photovoltaic devices.

When photovoltaic devices are measured under irradiation conditions different from the standard spectral irradiation specified in IEC 60904-3, or when the device under test is compared with a standard photovoltaic...

When the spectral responsivity of devices is inconsistent, the spectral response measured in this document can be used to correct for spectral mismatch. Spectral Mismatch Correction Reference IEC 60904-7.

Photovoltaic devices Part 8: Measurement of the Spectral Response of Photovoltaic Devices

1 Scope

This document specifies the measurement requirements for the spectral response of linear and nonlinear photovoltaic devices.

This document applies to the spectral response measurement of single-junction devices; for multi-junction devices, please refer to IEC 60904-8-1.Spectral responsivity of photovoltaic devices.

This document can be used to measure recombination and other processes occurring inside semiconductor or battery materials, and therefore it can also be applied to battery research and analysis.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

Note. GB/T 27025-2019 General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:2017, IDT) IEC 60904-3 Photovoltaic devices – Part 3: Measurement principles of terrestrial photovoltaic devices based on standard spectral irradiance data [Photo-Note. GB/T 6495.3-2025 Photovoltaic devices - Part 3: Measurement principles of terrestrial photovoltaic devices based on standard spectral irradiance data (IEC 60904-3:2019, IDT) IEC 60904-7 Photovoltaic devices – Part 7: Calculation method for spectral mismatch correction in photovoltaic measurements vices) Note. GB/T 6495.7-2025 Photovoltaic devices - Part 7: Calculation method for spectral mismatch correction in photovoltaic device measurements (IEC 60904-7:2019) IDT) Note. GB/T 6495.9-2025 Photovoltaic devices - Part 9: Characteristic classification of solar simulators (IEC 60904-9:2020, IDT) IEC 61215 (all parts) - Design qualification and type approval of ground-mounted photovoltaic modules Note. GB/T 9535 (all parts) Design qualification and type approval for ground-mounted photovoltaic modules [IEC 61215 (all parts)] Note. GB/T 2297-2025 Terminology for Solar Photovoltaic Energy Systems (IEC TS61836:2025, NEQ)

3 Terms and Definitions

This document does not contain any terms or definitions that need to be defined.