工業技術研究院

技術簡介

一種偵測太陽能電池中的熱斑區域的方法，包括：施加第一電壓方波於太陽能電池，第一電壓方波包括間隔式的多個逆偏電壓段以及接續在該些逆偏電壓段之後的至少一第一正偏電壓段，於至少一第一正偏電壓段擷取太陽能電池的第一近紅外光影像；施加第二電壓方波於太陽能電池，第二電壓方波包括至少一第二正偏電壓段，於至少一第二正偏電壓段擷取太陽能電池的第二近紅外光影像；以及依據第一近紅外光影像與第二近紅外光影像的至少一影像差值來獲取太陽能電池的至少一熱斑區域。

Abstract

A method for detecting hot spot region in a solar cell, including applying a first voltage square wave to the solar cell, the first voltage square wave includes a plurality of spaced reverse bias voltage segments and at least one first forward bias voltage segment following the reverse bias voltage segments, capturing a first near-infrared light image of the solar cell at the at least one first forward bias voltage segment, applying a second voltage square wave to the solar cell, the second voltage square wave includes at least one second forward bias voltage segment, capturing a second near-infrared light image of the solar cell at the at least one second forward bias voltage segment, and obtaining at least one hot spot region of the solar cell according to at least one image difference between the first near-infrared light image and the second near-infrared light image.

技術規格

1.加熱電池中缺陷區域所需的逆偏電壓絕對值小於12V。 2.近紅外光影像差值大於0的區域為熱斑區域。

Technical Specification

1. The absolute value of the reverse bias voltage required to heat the defect area in the solar cell is less than 12V. 2. The area where the difference value of the near-infrared light image is greater than 0 is the hot spot area.

技術特色

一般電致發光與光致發光的影像暗區肇因於太電能電池中的各種缺陷，無法辨識出熱斑區域，本專利則藉由近紅外光影像差值可辨識出太陽能電池的潛在熱斑區域。

應用範圍

太陽能電池、模組廠

接受技術者具備基礎建議（設備）

具有太陽能電池與模組相關之製造、檢測、可靠度測試等設備

接受技術者具備基礎建議（專業）

具有太陽能電池、模組等經驗的研發工程人員與銷售業務

聯絡資訊