Controlled Pinning of Conjugated Polymer Spherulites and Its Application in Detectors,Advanced Optical Materials

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Controlled Pinning of Conjugated Polymer Spherulites and Its Application in Detectors
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2017-07-31 , DOI: 10.1002/adom.201700276
Bernhard Dörling ₁ , Antonio Sánchez-Díaz ₁ , Oriol Arteaga _{2,

3} , Andrea Veciana _{1,

4} , Maria Isabel Alonso ₁ , Mariano Campoy-Quiles ₁

Affiliation

The nucleation of single macroscopic spherulites at desired positions, as well as ordered arrays of multiple spherulites, is demonstrated by combining the use of crystallizable solvents with local control of solvent evaporation during solution deposition. Moreover, the temperature assisted localized frustration of molecular orientation is shown, enabling the fabrication of samples containing both isotropic areas and spherulites. These macroscopic circular polycrystalline structures are characterized using a range of polarized spectroscopic techniques that allow quantifying their large degree of chain orientation. In order to show the potential of these large conjugated polymer spherulites centered at desired locations, graded bilayer organic photovoltaic devices were fabricated to be used as polarimeters, solid state light polarization detectors with no moving parts, and position sensitive photodetectors.

中文翻译：

共轭聚合物球晶的固定钉扎及其在探测器中的应用

通过将可结晶溶剂的使用与溶液沉积过程中对溶剂蒸发的局部控制相结合，证明了单个宏观球晶在所需位置的成核，以及多个球晶的有序排列。而且，示出了温度辅助的分子取向的局部挫折，其使得能够制造包含各向同性区域和球晶的样品。这些宏观的圆形多晶结构使用一系列偏振光谱技术进行表征，这些技术可以量化其较大的链取向度。为了显示这些大的共轭聚合物球晶集中在所需位置的潜力，我们制作了梯度双层有机光伏器件以用作偏振计，

更新日期：2017-07-31

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