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Large‐area flexible, transparent, and highly luminescent films containing lanthanide (III) complex‐doped ionic liquids for efficiency enhancement of silicon‐based heterojunction solar cell
Progress in Photovoltaics ( IF 8.0 ) Pub Date : 2017-07-04 , DOI: 10.1002/pip.2915
Xinyue Zhang 1 , Tianren Wang 1 , Xiaoting Qin 2 , Zhongyi Zhang 2 , Yunyu Sun 3 , Hongze Liang 3 , Huanrong Li 1
Affiliation  

Ionic liquid (IL)‐based lanthanide luminescent materials with luminescent downshifting properties are beneficial for enhancing the photovoltaic energy conversion efficiency (ηpv) of silicon‐based solar cells. Herein, novel lanthanide (III) complex‐doped ILs have been successfully prepared by simply dissolving the complex Ln(pybox)3 (Ln = Eu or Tb, pybox = 2,6‐bis[(4R)‐4‐phenyl‐2‐oxazolinyl]pyridine) into a bidentate organophosphine functionalized IL (1,3‐bis‐[3‐(diphenylphosphinyl)propyl]imidazolebis (trifluoromethylsulfonyl)imide), showing improved luminescence efficiency attributed to the coordination of ILs with Ln3+ ions and thus occurrence of the energy transfer from ILs to Ln3+ ions and very high absolute quantum efficiency (up to 97.22%). Large area (17 × 17 cm2) flexible, transparent, and luminescent poly(methyl methacrylate) thin films were prepared through a simple drop‐casting method and were applied as luminescent downshifting coatings to the silicon‐based heterojunction solar cells (active area: 235 cm2). In the best case using the Tb3+‐containing film, the ηpv of the solar cell increases from 16.676 to 16.774%.

中文翻译:

含有镧系元素(III)掺杂离子液体的大面积柔性,透明和高发光膜,可提高硅基异质结太阳能电池的效率

离子液体(IL)为基础的具有发光性能的降档的镧系元素的发光材料是用于增强光伏能量转换效率有益的(η PV基于硅的太阳能电池的)。本文中,仅通过溶解复合物Ln(pybox)3(Ln = Eu或Tb,pybox = 2,6-bis [(4 R)-4-苯基-2),就成功制备了新型镧系元素(III)复合物掺杂的IL。-恶唑啉基]吡啶)形成二齿有机膦官能化的IL(1,3-双-[3-(二苯基膦基)丙基]咪唑双(三氟甲基磺酰基)亚胺),显示出提高的发光效率,这归因于IL与Ln 3+离子的配位从IL到Ln 3+的能量转移的发生离子和非常高的绝对量子效率(高达97.22%)。通过简单的滴铸法制备了大面积(17×17 cm 2)柔性,透明和发光的聚甲基丙烯酸甲酯薄膜,并将其作为发光降档涂层应用于基于硅的异质结太阳能电池(有效面积: 235厘米2)。在使用Tb的最好的情况下3+含膜,所述η PV从16.676到16.774%的太阳能电池增加。
更新日期:2017-07-04
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