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太陽光電技術

太陽光電技術. Week 1: Basic concepts. 光合作用. 再 生能源種類. 風能 太陽能 水力 地熱能 氫能 生化質能 . 太陽電池種類. 電磁波頻譜. 太陽光功率 =1500W/m 2 ( 大氣上層 ). Figure 2.9: Schematic of AM reference spectra condition. AM1.5G=1000 W/m 2 ( 地球表面 ).

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太陽光電技術

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  1. 太陽光電技術 Week 1: Basic concepts

  2. 光合作用

  3. 再生能源種類 • 風能 • 太陽能 • 水力 • 地熱能 • 氫能 • 生化質能

  4. 太陽電池種類

  5. 電磁波頻譜

  6. 太陽光功率=1500W/m2 (大氣上層)

  7. Figure 2.9: Schematic of AM reference spectra condition AM1.5G=1000 W/m2 (地球表面)

  8. Figure 2.10: Examples of other realistic atmospheric and air mass conditions compared to AM 1.5

  9. Silicon 的能帶 (energy band)

  10. Principle of silicon solar cells Valence – conduction band Transition ,one photon produces one e-h pair P-N Junction Problem: 電子電動因庫倫力吸引—Excition, 防害電子的收集

  11. Exciton的觀念 • bound Electron-hole pair 稱為 exciton

  12. A tightly bound exciton

  13. Exciton之束縛能

  14. 實際Si 太陽電池之結構

  15. Antireflection coating 減少入射光之反射

  16. 能量轉換效率 (energy conversion efficiency，η ) 入射太陽光輻射之能量( Pin ) 與太陽能電池輸出功率 ( Pmax) 的百分比 標準光源: AM 1.5 (0.1W/cm2)

  17. X軸交會點: 開路電壓 ( open circuit voltage，VOC ) Y 軸交會點: 短路電流( short circuit current，ISC )

  18. 填充因子FF ( fill factor )

  19. AM1.5 Filter 圖3-3-1.2 電腦量測示意圖 2400 I-V量測示意圖

  20. IPCE ( Incident photon to current conversion efficiency ) λ : 單色光波長 J : DSSC光電流密度 Pin : 單色光入射能量

  21. 光纖 樣品座 Keithley 2400 圖3-3-3 IPCE光譜量測架設圖 IPCE光譜量測架設圖

  22. 染料對光波長的IPCE

  23. Theory for Si solar cells: One-diode model

  24. Iph: 入射光產生之電流 I0: 二極體飽和電流 實際狀況,須考慮平行電阻與串聯電阻— Rparallel, Rseries, 2-diode model

  25. 理想太陽電池之I-V 曲線

  26. Rs, Rp 對I-V 曲線之影響

  27. Series resistance 對solar cell 電流之效應

  28. Rs及Rp的簡單計算 Rp-1 Rs=(dV/dI) at I=0 Rp=(dV/dI) at v =0 Rs-1

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