德國梅因斯的約翰尼斯.古藤保大學在2010年7月13日發布了一項聲明，宣傳在提高薄膜電池效率研究方面實現了一項新的突破。電腦模擬器中顯示這種被稱為神秘銦鎵的原材料為CIGS薄膜電池效率的提高提供了一種全新的方式。
迄今為止，CIGS電池已經可以達到了接近20%的光電轉換效率，而在理論上該類電池的轉換效率達到30%也是極有可能的。
Break-through for thin-film solar cells: new insights on indium-gallium
13.07.2010: Scientists of the Johannes Gutenberg-University Mainz (JGU) in Germany have achieved an important breakthrough in the search for more efficient thin-film solar cells. Computer simulations on the so called indium gallium mystery show a new way for increasing the efficiency of CIGS thin-film solar cells. Until now CIGS cells had an efficiency of about 20%, while in theory effiencies of more than 30% could be possible. …