Effect of processing conditions on additive DISC patterning of P3HT films
Effect of processing conditions on additive DISC patterning of P3HT films
复制标题
加工条件对 P3HT 薄膜加成 DISC 图案化的影响
DOI：
10.1039/c8tc04519d
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发表时间：
2019
影响因子：
6.4
通讯作者：
Moulé, Adam J.
中科院分区：
文献类型：
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作者：
Li, Jun;Holm, Daniella M.;Guda, Shravya;Bedolla-Valdez, Zaira I.;Gonel, Goktug;Jacobs, Ian E.;Dettmann, Makena A.;Saska, Jan;Mascal, Mark;Moulé, Adam J.
迫切需要开发一种在亚微米尺度上图案化用于器件应用的半导体聚合物的方法。掺杂剂诱导溶解度控制（DISC）图案化是最近公布的用于图案化半导体聚合物的方法，其已被证明具有亚微米分辨率。DISC依赖于将分子掺杂剂（此处为2，3，5，6-四氟-7，7，8，8-四氰基醌二甲烷（F4 TCNQ））顺序添加到共轭聚合物中。在掺杂区域中，共轭聚合物被保护免于溶解，而在未掺杂区域中，聚合物溶解到溶液中。在这里，我们检查影响显影图案分辨率的因素。两个因素被确定为是关键的图案分辨率，聚合物的初始结晶度，这里聚（3-己基噻吩）（P3 HT），和显影溶剂的质量。我们发现，掺杂剂扩散更容易在高度结晶的薄膜比在非晶薄膜的P3 HT和掺杂剂扩散降低了保真度的产生的图案。我们还发现，显影溶剂的选择影响图案的保真度和图案化的聚合物域内的掺杂剂分布。最后，我们表明，扩散速度比F4 TCNQ在P3 HT膜中更慢的掺杂剂可用于图案化具有更高保真度的膜。这些结果一起提供了一个路线图，优化任何聚合物/掺杂剂对的添加剂DISC图案。
There is a critical need to develop a method to pattern semiconducting polymers for device applications on the sub-micrometer scale. Dopant induced solubility control (DISC) patterning is a recently published method for patterning semiconductor polymers that has demonstrated sub-micron resolution. DISC relies on the sequential addition of molecular dopants (here 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ)) to the conjugated polymer. In doped areas, the conjugated polymer is protected from dissolution while in undoped areas, the polymer dissolves into solution. Here we examine factors that affect the resolution of the developed pattern. Two factors are determined to be critical to pattern resolution, the initial crystallinity of the polymer, here poly(3-hexylthiophene) (P3HT), and the quality of the development solvent. We find that dopants diffuse more readily in highly crystalline films than in amorphous films of P3HT and that dopant diffusion reduces the fidelity of the resulting pattern. We also find that the choice of development solvent affects both the fidelity of the pattern and dopant distribution within the patterned polymer domains. Finally, we show that a dopant that diffuses more slowly than F4TCNQ in the P3HT film can be used to pattern the film with higher fidelity. These results together provide a road map for optimizing additive DISC patterning for any polymer/dopant pair.
影响因子：
--
作者：
Scharsich, Christina;Lohwasser, Ruth H.;Koehler, Anna
通讯作者：
Koehler, Anna
聚（3-己基噻吩）薄膜中空穴对激子的猝灭
影响因子：
3.7
作者：
A. Ferguson;N. Kopidakis;S. Shaheen;G. Rumbles
通讯作者：
G. Rumbles
影响因子：
8.6
作者：
Jacobs, Ian E.;Wang, Faustine;Moule, Adam J.
通讯作者：
Moule, Adam J.