本論文中，我們提出兩種架構為利用硫化鋅不含鎘且具寬能隙磷化銦鎵輔助層之銅銦鎵硒太陽能電池和類並聯式的太陽能電池。太陽能電池架構中，在硫化鋅緩衝層與銅銦鎵硒吸收層之間添加輔助層磷化銦鎵，其架構為從傳統氧化鋅/硫化鋅/銅銦鎵硒/鉬改變為氧化鋅/硫化鋅/磷化銦鎵/銅銦鎵硒/鉬。經由模擬結果顯示，藉由添加一寬能隙磷化銦鎵材料，使得開路電壓相比於未添加此材料時可改善2.47倍，同時轉換效率也提升約10 %。為了彌補電流密度的下降，我們藉由類並聯式架構使電流密度獲得提升33 %並且轉換效率提升34 %。
另外類並聯式的太陽能電池方面，將兩個架構相同的太陽能電池，藉由背對背共用背電極，形成上電極/太陽能電池/背電極/太陽能電池/上電極之類並聯形式。我們分別對單晶矽、具磷化鎵之單晶矽、非晶矽、砷化鎵、堆疊砷化鎵、銅銦鎵硒、具磷化銦鎵之銅銦鎵硒、碲化鎘材料的太陽能電池，進行類並聯的模擬。經由模擬結果顯示，單一面積以及單面照光於類並聯太陽能電池，相比於未類並聯時擁有較大的電流密度，進而使轉換效率獲得提升。

In this thesis, we propose two solar cell structures. One is the Cd-free and ZnS based CIGS solar cell with a wide-bandgap InGaP secondary layer, and the other is back-to-back parallel solar cell. We add an InGaP secondary layer between the ZnS buffer layer and CIGS absorber layer in the conventional ZnO/ZnS/CIGS/Mo structure. According to the simulation, the voltage can be improved 2.47 times by using a wide-bandgap InGaP material. Also, the conversion efficiency has been increased about 10 %. In order to make up reduction of the current density, we use the back-to-back parallel structure to improve the current density to 33 % and the conversion efficiency can be ameliorated 34 %.
In addition, we connect the back electrodes of the same two solar cells to form back-to-back parallel solar cell. The back-to-back parallel solar cell is constituted by upper electrode/solar cell/back electrode/solar cell/upper electrode. We discuss many of materials to form back-to-back parallel solar cell, such as Si, GaP/Si, a-Si, GaAs, tandem GaAs, CdTe, CIGS, CIGS with InGaP. The simulation results show that the current density can be increased due to the use of back-to-back parallel form. Therefore, the conversion efficiency also can be improved.

第一章、緒論 1
1.1 背景 1
1.2 研究動機 4
第二章、具輔助層銅銦鎵硒太陽能電池 6
2.1元件模擬之物理模型 6
2.2 傳統架構與具輔助層之比較 7
2.2.1 傳統架構緩衝層硫化鎘與硫化鋅 7
2.2.2 傳統架構與輔助層 8
2.2.3 傳統架構與磷化銦鎵輔助層 11
2.3 硫化鋅為緩衝層之銅銦鎵硒太陽能電池製程步驟 22
2.4 磷化銦鎵為輔助層之銅銦鎵硒太陽能電池製程步驟 23
第三章、類並聯式太陽能電池 25
3.1 矽太陽能電池 25
3.1.1 傳統單晶矽與類並聯太陽能電池 25
3.1.2 傳統非晶矽與類並聯太陽能電池 27
3.1.3 具磷化鎵之單晶矽與類並聯太陽能電池 29
3.2 砷化鎵太陽能電池 31
3.2.1 傳統砷化鎵與類並聯太陽能電池 31
3.2.2 堆疊砷化鎵與類並聯太陽能電池 33
3.3 碲化鎘太陽能電池 36
3.3.1 碲化鎘與類並聯太陽能電池 36
3.4 銅銦鎵硒太陽能電池 38
3.4.1 傳統銅銦鎵硒太陽能電池 38
3.4.2 具磷化銦鎵銅銦鎵硒與類並聯太陽能電池 40
3.5 類並聯太陽能電池單雙面照光之比較 42
3.6 單晶矽種類的類並聯比較 50
3.7 並聯式太陽能電池製作 56
第四章、結論與未來展望 60
4.1 結論 60
4.2 未來展望 61
參考文獻 62
A附錄、太陽能電池物理機制與理論 67
光電於半導體 67
能帶中光的行 68
太陽光譜 70
太陽能電池的操作理論 71
太陽能電池的電性參數 72
短路電流 73
開路電壓 74
填充因子 74
轉換效率 75
光學特性探討 76
外部量子效率 77
內部量子效率 77
太陽能電池的效率損失及提升 78
銅銦鎵硒太陽能電池介紹 79
抗反射層與透明導電膜 80
緩衝層 80
吸收層 80
背電極與基板 82
輔助吸收層 83
B附錄、個人著作 84

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