Matrix Organization and Merit Factor Evaluation as a Method to Address the Challenge of Finding a Polymer Material for Roll Coated Polymer Solar Cells
Matrix Organization and Merit Factor Evaluation as a Method to Address the Challenge of Finding a Polymer Material for Roll Coated Polymer Solar Cells
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DOI：
10.1002/aenm.201402186
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发表时间：
2015-05-20
影响因子：
27.8
通讯作者：
Krebs, Frederik C.
中科院分区：
文献类型：
--
作者：
Bundgaard, Eva;Livi, Francesco;Krebs, Frederik C.
所呈现的结果展示了如何筛选104个光吸收低带隙聚合物以适合于辊涂聚合物太阳能电池，可以通过根据矩阵的理性合成来完成，其中8个供体和13个受体单元以行和列组织。合成对应于供体和受体单元的所有组合的所有聚合物之后，对所有材料的分子量、电化学能级、带隙、光化学稳定性、载流子迁移率和光伏参数进行表征。具体参考可规模化制造来进行光伏评估，所述可规模化制造包括大面积（1cm（2））、稳定的倒置装置架构、具有ZnO/PEDOT：PSS（聚（3，4-亚乙基二氧噻吩）：聚苯乙烯磺酸盐）的不含铟锡氧化物的完全印刷柔性前电极和印刷银梳状背电极结构。矩阵组织使得能够根据加权优值因子快速识别有源层材料，该加权优值因子不仅仅包括功率转换效率，并且用作识别引线候选的方法。基于包括在优值因子中的几个特性，发现在所选择的加工条件下，104种合成的聚合物中有13种优于聚（3-己基噻吩），因此可以适合于进一步的开发。
The results presented demonstrate how the screening of 104 light-absorbing low band gap polymers for suitability in roll coated polymer solar cells can be accomplished through rational synthesis according to a matrix where 8 donor and 13 acceptor units are organized in rows and columns. Synthesis of all the polymers corresponding to all combinations of donor and acceptor units is followed by characterization of all the materials with respect to molecular weight, electrochemical energy levels, band gaps, photochemical stability, carrier mobility, and photovoltaic parameters. The photovoltaic evaluation is carried out with specific reference to scalable manufacture, which includes large area (1 cm(2)), stable inverted device architecture, an indium-tin-oxide-free fully printed flexible front electrode with ZnO/PEDOT:PSS (poly(3,4-ethylenedioxythiophene):polystyrene sulfonate), and a printed silver comb back electrode structure. The matrix organization enables fast identification of active layer materials according to a weighted merit factor that includes more than simply the power conversion efficiency and is used as a method to identify the lead candidates. Based on several characteristics included in the merit factor, it is found that 13 out of the 104 synthesized polymers outperformed poly(3-hexylthiophene) under the chosen processing conditions and thus can be suitable for further development.