PV07900 - SEMI PV79 - Test Method for Exposure Durability of Photovoltaic (PV) Cells to Acetic Acid Vapor

Volume(s): Photovoltaic
Language: English
Type: Single Standards Download (.pdf)

This Standard was technically approved by the Photovoltaic – Materials Global Technical Committee. This edition was approved for publication by the global Audits and Reviews Subcommittee on May 22, 2018. Available at www.semiviews.org and www.semi.org in August 2018; originally published August 2017.


The current collection failure induced by the corrosion in finger electrodes on photovoltaic (PV) cells has been elucidated as a major degradation cause of crystalline silicon (c-Si) PV modules installed in hot-humid climate.


However, in the current damp heat stress test for PV modules, thousands of hours requires in the confirmation of this corroding phenomenon.


Therefore, the test method is proposed to reduce the test period, which is to directly expose PV cells to acetic acid vapor at high-temperature and -humidity conditions.


This Test Method is a comparative test method between a reference PV cell and PV cells to be tested.


This Test Method assesses relative durability of c-Si PV cells to acetic acid vapor at hygrothermal conditions.


This Test Method detects the alterations in current-voltage characteristics of PV cells and in AC impedance characteristics (see Figure 1).


Referenced SEMI Standards

SEMI M59 — Terminology for Silicon Technology

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