本實驗主要在探討鐵酸鉍(BiFeO3,BFO)薄膜在不同退火溫度、退火氣氛、緩衝層以及不同摻雜濃度下所表現出來的光伏效應，藉由各項儀器來觀察鐵酸鉍薄膜在不同情況下所表現出來的差異性，再藉由分析這些差異性來推測影響光伏效應的可能機制與原因。
本實驗的BFO薄膜以及導電緩衝層都是利用溶膠凝膠法(sol-gel method)在白金基板上鍍製。首先，先在白金基板上鍍上不同的導電緩衝層，分別為鎳酸鑭(LaNiO3,LNO)以及氧化鉍(Bi2O3)，接著將BFO薄膜或摻雜釔(Y)的BYFO薄膜分別鍍在具有不同緩衝層的基板上，分別為：Pt、LNO/Pt、Bi2O3/Pt。最後，這些BFO薄膜會分別經過不同溫度或不同氣氛的退火處理。
分析的儀器分別是利用場發射電子顯微鏡來觀察表面形貌與晶粒大小，X光繞射儀來分析薄膜的結晶行為，壓電力顯微鏡觀察BFO薄膜鐵電電域的排列情況，化學分析電子能譜儀進行薄膜表面化學分析，紫外光-可見光光譜儀量測薄膜的光學性質，鐵電量測儀量測電滯曲線，太陽光模擬系統量測光伏效應，半導體分析參數儀量測漏電流行為，LCR測試儀量測在不同頻率下的介電常數與散逸因子。
實驗發現，鐵酸鉍薄膜的晶粒大小、氧空缺的出現以及結晶性的差異都會對光伏效應產生影響。晶粒大小會影響電子電洞對的擴散距離，氧空缺的出現會形成缺陷能階，促使電子電洞對傾向複合，這兩個因素都不利閉路電流的產生。較好的結晶性會有較好的電導率，不利開路電壓的提升。此外，實驗發現，透過摻雜釔可以大幅提升BFO薄膜在照光下的閉路電流，也可稍稍提升開路電壓，推測主要原因與其光學性質的改變有關。但若過量摻雜釔反而會使光伏效應減弱，推測主要原因與摻雜後薄膜結構的轉變有關。由於適量摻雜釔可以提升閉路電流進而提升開路電壓，LNO緩衝層能夠降低BFO薄膜的缺陷含量，因此將適量摻雜釔的BFO薄膜鍍在LNO緩衝層上可以同時大幅提升閉路電流與開路電壓，其光伏效應的表現是本實驗中表現最好的一組。透過其他性質的量測，發現BFO薄膜光伏效應的強弱與本實驗中所進行的電滯曲線、介電常數隨頻率變化、散逸因子隨頻率變化與漏電流量測，並無觀察到有任何明顯直接的關聯。

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