| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Spontaneous Surface Flatteningvia Interdiffusion of Polyelectrolyte Multilayers and Its Application to Polymer Solar Cell |
| 초록 |
We present a novel and robust means of surface flattening of non-planar surfaces by utilizing the interdiffusion of weakly charged polyelectrolyte multilayers(PEM). Spontaneous surface flattening can be achieved via alternative layer-by-layer deposition of cationic linear polyethylenimine and anionic poly(acrylic acid). This pair of PEs is known to exhibit intriguing properties of interdiffusion and high mobility even in the ionically complexed structures. Through a use of these inherent characteristics, we demonstrated a spontaneous planarization of nano-patterned surfaces. We confirmed that the surface flattening effects strongly depends on the type of PEs pair. For instance, use of non-interdiffusional PEs or strongly charged PEs rarely achieve the purpose of surface flattening. Finally, the applicability of surface flattening for polymer solar cells has been investigated, where the efficiency of solar cells can be improved by the enhanced transmittance of flattened ITO electrodes. |
| 저자 |
김영훈1, 유필진2
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| 소속 |
1성균나노과학기술원, 2성균나노과학기술원 / 성균관대 |
| 키워드 |
Layer-by-Layer self assembly; Polyelectrolyte multilayers; Planarization; Flattening; linear polyethylenimine; poly (acrylic acid)
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| E-Mail |
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