表面電漿子在太陽能電池之光電效應

本文主要在探討奈米銀粒子所產生之表面電漿子效應，對太陽能電池模組效能之光電流與效能之影響。以濺鍍製程沉積之奈米銀粒子是在700-800°C退火2-3分鐘，經由轉印製程使奈米銀粒子封裝於太陽能電池模組。根據實驗結果可看出，表面電漿子效應在700°C退火3分鐘之奈米銀粒子鍍膜相當顯著，其光穿透度在波長500-800 nm可達90%以上，而反射率之量測結果顯示反射率相當低（約6.5%），顯示其具有較佳之抗反射能力。觀察SEM表面影像分析可知，700°C退火3分鐘之奈米銀粒子尺寸約直徑150 nm且分布均勻，故在光學之增益較高，相較於其他退火製程之奈米銀粒子呈現不規則狀，對於光捕捉的提升未能達到光學增益的效果。奈米銀粒子在矽晶太陽能電池模組中之可看出，700°C退火3分鐘之奈米銀粒子經轉印後，可提升電性表現（串聯電阻、並聯電阻），填充因子可達73.63%，達到高輸出功率之目的。

關鍵字

奈米銀粒子；表面電漿子效應；矽晶太陽能電池模組；濺鍍製程

並列摘要

This paper presents surface plasmonic effect of Ag nanoparticles with variation of annealing conditions of 700-800°C for 2-3 minutes on crystalline silicon solar cell to enhance the light intensity. The Ag nanoparticles were prepared by sputter process and then transfer to Ethylene vinyl acetate (EVA) encapsulant. Effects of Ag nanoparticles deposited on the surface of solar cell were examined and discussed It is found that the transmittance higher than 90% at the wavelength of 500~800 nm was detected in the Ag-nanoparticle solar cells with an annealing condition of 700°C for 3 min. And the reflectance of around 6.5% suggests a significant nature of anti-reflection property. SEM morphology shows that the Ag-nanoparticle of 150 nm exhibits an enhancement in optics due to its sphere-like shape. The photovoltaic performance of solar modules was characterized by a flasher system in AAA class (temporal instability, spectral match, and irradiance non-uniformity). The IV curve shows that solar module of Ag-nanoparticle around 150 nm exhibits high shunt resistance, and low series resistance. Thus a high fill factor value is calculated by the extimation. This paper not only illustrated the performance of the surface plasmonic resonance of a solar device but also verifies the application in the industrial production.

並列關鍵字

Ag nanoparticles ； surface plasmonic effect ； crystalline silicon solar cell module ； sputtering process

國際替代計量

表面電漿子在太陽能電池之光電效應

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