由高介電常數的矽超原子所構成的一維奈米材料在近年由於優異的光學性質，因此被廣泛應用於各類光學元件中。藉由在次波長的維度下調控它們的週期配置方式可以因此獲得所需求的電磁特性。在這篇文章中，矽超原子藉由結合奈米球微影術與金屬輔助化學蝕刻，以一維奈米線形式實現精密排列的大面積陣列。在矽奈米線的光學性質中，我們發現有幾種共振模式存在得以因此抑制特定波段下的反射率；為了能有效分析與了解背後的運作機制，在次波長週期性結構的前提下因此導入了等效介質理論。此法可由結構的反射率與穿透率推得等效折射係數與阻抗，進而求得等效介電常數與透磁率的變化，這些變化得益於矽超原子與入射光彼此形成強有力的耦合作用，並且因此形成被稱為波導管的波導共振模式。此種共振模式可有效將入射光往矽基板傳遞，而為了更深入了解這個現象，由電場分布圖的分析得知，當一維矽超原子的週期被設定為300奈米時，在波段涵蓋500至700奈米的區間時可以與太陽光形成有效的耦合現象。除了波導共振模態之外，另一種由矽奈米線間的空腔內所形成的法布里．佩波共振模式，使得矽超原子得以將入射光在結構中重複震盪，達到光束縛的目的。在高頻率的紫外光波段照射下，由電場分布圖分析得知矽奈米線頂端產生多重散射的現象，幫助矽奈米線克服本質矽在紫外光下高反射率的缺點。最後我們將最佳化一維排列的矽超原子與碳量子點結合形成異質接面以利提升載子分離特性，以及提升紫外光波段下的光吸收，從而製備出高轉換效率的太陽能電池，達到35.24 mA/cm2短路電流、0.548V開路電壓、63.4%的填充因子以及12.23%的轉換效率。

Dielectric meta-atoms that are active in the visible spectral regions possess the unprecedented optical properties in nature. The desired electromagnetic behavior can be obtained through engineering their periodic arrangement with spatial configuration in subwavelength regimes. In this study, 1D silicon (Si)-based metamaterials were prepared with the combination of nanosphere-lithographic process and metal-assisted chemical etching. Well-aligned one-dimensional Si meta-atoms with tunable width and spacing were realized, where three distinguished light-absorption characteristics were investigated. First, the nano-resonant cavity, termed as Fabry-Pe ́rot interference enabled to trap the incident lights within the Si meta-atoms behaving as two-dimensional dielectric grating, Next, the neighboring one-dimensional Si meta-atoms cause the resonant coupling between incident light and guided modes. Finally, the resonant near-field confinement of light within Si meta-atoms due to the creation of large index mismatch between Si with surrounding air. By introducing 0D carbon quantum dots that facilitated the charge separation, the correlated 0D/1D hybrid solar cells showed the improved performance with power conversion efficiency of 12.23%, open-circuit voltage of 0.548 V, short-circuit current density of 35.24 mA/cm2, and fill factor of 63.4%.

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