由雙氟與雙腈取代六噻吩異靛藍三元共聚高分子構成的三元高分子太陽能電池異質接面厚度增加 (100 奈米 → 300 奈米) 效率僅微幅下降 (14.5% → 14.0%)
Difluoro and Dicyano Substituted Sexithiophene—Isoindigo Terpolymers Enabling Ternary Polymer Solar Cells with a Bulk Heterojunction Thickness 100 nm → 300 nm and a Minor Decline of Efficiency 14.5% → 14.0%Chem. Eng. J. 2023, 468, 143796.
Adane Desta Fenta, Chiao-Wen Lin, Syuan-Wei Li, Chao-Tsen Chen*, Chin-Ti Chen*
成功製備了高效率三元共聚高分子—Y6 或 IT4F—PC71BM 所構成的三元高分子太陽能電池，這些三元高分子太陽能電池異質接面厚度可以薄從 100 奈米厚至 500 奈米厚。令人驚喜的，當異質接面厚度從 100 奈米增加至 300 奈米時，這些三元高分子太陽能電池的效率僅出現微幅的下降: 14.5% 降至 14.0%( Y6元件)；12.7% 降至 12.4% ( IT4F 元件)。至於這些三元高分子太陽能電池的持久性，無論是厚的 (300 nm) Y6 或 IT4F 元件，測試的存放期限與文獻中報導的高分子太陽能電池相當，文獻中有存放期限測試報導的高分子太陽能電池，其厚度都沒有超過 180 奈米，高效率的高分子太陽能電池越厚越有利於高分子太陽能電池的量產製程。
Efficient ternary polymer solar cells (PSCs) based on a series of terpolymers, Y6 or IT4F, and PC71BM have been fabricated. The bulk heterojunction (BHJ) of these polymer solar cells has a varied thickness, from 100 nm to 500 nm. Remarkably, the power conversion efficiency of these polymer solar cells shows a minor decline, from 14.5% to 14.0% (for Y6 devices) or from 12.7% to 12.4% (for IT4F devices), when the thickness of BHJ increases from 100 nm to 300 nm. Regarding the durability of PSCs, terpolymer—Y6 or IT4F—PC71BM thick PSCs (300 nm) exhibit comparable shelf-lifetime as those thinner PSCs (< 180 nm). Efficient PSCs with a thicker BHJ are more ready for mass production processes.