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Growth kinetics of plasma-polymerized films.

Hwang S, Seo H, Jeong DC, Wen L, Han JG, Song C, Kim Y - Sci Rep (2015)

Bottom Line: The growth kinetics of polymer thin films prepared by plasma-based deposition method were explored using atomic force microscopy.The growth behavior of the first layer of the polythiophene somewhat differs from that of the other layers because the first layer is directly deposited on the substrate, whereas the other layers are deposited on the polymer itself.After the deposition of the first layer, each layer is formed with a cycle of 15 s.

View Article: PubMed Central - PubMed

Affiliation: School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, Gyeonggi-do 440-746, Republic of Korea.

ABSTRACT
The growth kinetics of polymer thin films prepared by plasma-based deposition method were explored using atomic force microscopy. The growth behavior of the first layer of the polythiophene somewhat differs from that of the other layers because the first layer is directly deposited on the substrate, whereas the other layers are deposited on the polymer itself. After the deposition of the first layer, each layer is formed with a cycle of 15 s. The present work represents the growth kinetics of the plasma-polymerized films and could be helpful for further studies on growth kinetics in other material systems as well as for applications of plasma-polymerized thin films.

No MeSH data available.


Schematic representation of growth kinetics: the number of each stage corresponds to the step in Fig. 3(b)
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f4: Schematic representation of growth kinetics: the number of each stage corresponds to the step in Fig. 3(b)

Mentions: The growth kinetics of the plasma-polymerized films can be explained as schematically presented in Fig. 4 based on the periodicity depending on the deposition time. At the deposition time of 10 s (very early stage of deposition, 2 in Fig. 4), a number of islands consisting of aggregated polymers are formed on the substrate. A relatively low degree of roughness is then obtained at 15 s (3 in Fig. 4) compared to that of the data at deposition time of 10 s. This can be explained as the formation of the first layer. Subsequently, the sudden decrease in the degree of roughness becomes greater immediately after 15 s, and continues to increase up to 25 s (4 in Fig. 4). This corresponds to the fact that other polymer islands are created on the first layer of the polymer, which is completely formed after 15 s. Relatively lower peak intensity periodically appears at deposition times of 10, 25, and 40 (2, 4, and 6 in Fig. 4, respectively) and 55 s. However, the peak intensities at the deposition times of 10 and 25 s (2 and 4 in Fig. 4, respectively) significantly differ from each other. This might have originated from the different surface energies of the two cases; at the deposition time of 10 s (2 in Fig. 4), the polymer is deposited on the substrate; however, at the deposition time of 25 s (4 in Fig. 4), the polymer is deposited on the already deposited polymer films. If the surface energy differs, this can also affect the contact angle when the polymer is deposited on the substrate or polymer layer.


Growth kinetics of plasma-polymerized films.

Hwang S, Seo H, Jeong DC, Wen L, Han JG, Song C, Kim Y - Sci Rep (2015)

Schematic representation of growth kinetics: the number of each stage corresponds to the step in Fig. 3(b)
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4471662&req=5

f4: Schematic representation of growth kinetics: the number of each stage corresponds to the step in Fig. 3(b)
Mentions: The growth kinetics of the plasma-polymerized films can be explained as schematically presented in Fig. 4 based on the periodicity depending on the deposition time. At the deposition time of 10 s (very early stage of deposition, 2 in Fig. 4), a number of islands consisting of aggregated polymers are formed on the substrate. A relatively low degree of roughness is then obtained at 15 s (3 in Fig. 4) compared to that of the data at deposition time of 10 s. This can be explained as the formation of the first layer. Subsequently, the sudden decrease in the degree of roughness becomes greater immediately after 15 s, and continues to increase up to 25 s (4 in Fig. 4). This corresponds to the fact that other polymer islands are created on the first layer of the polymer, which is completely formed after 15 s. Relatively lower peak intensity periodically appears at deposition times of 10, 25, and 40 (2, 4, and 6 in Fig. 4, respectively) and 55 s. However, the peak intensities at the deposition times of 10 and 25 s (2 and 4 in Fig. 4, respectively) significantly differ from each other. This might have originated from the different surface energies of the two cases; at the deposition time of 10 s (2 in Fig. 4), the polymer is deposited on the substrate; however, at the deposition time of 25 s (4 in Fig. 4), the polymer is deposited on the already deposited polymer films. If the surface energy differs, this can also affect the contact angle when the polymer is deposited on the substrate or polymer layer.

Bottom Line: The growth kinetics of polymer thin films prepared by plasma-based deposition method were explored using atomic force microscopy.The growth behavior of the first layer of the polythiophene somewhat differs from that of the other layers because the first layer is directly deposited on the substrate, whereas the other layers are deposited on the polymer itself.After the deposition of the first layer, each layer is formed with a cycle of 15 s.

View Article: PubMed Central - PubMed

Affiliation: School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, Gyeonggi-do 440-746, Republic of Korea.

ABSTRACT
The growth kinetics of polymer thin films prepared by plasma-based deposition method were explored using atomic force microscopy. The growth behavior of the first layer of the polythiophene somewhat differs from that of the other layers because the first layer is directly deposited on the substrate, whereas the other layers are deposited on the polymer itself. After the deposition of the first layer, each layer is formed with a cycle of 15 s. The present work represents the growth kinetics of the plasma-polymerized films and could be helpful for further studies on growth kinetics in other material systems as well as for applications of plasma-polymerized thin films.

No MeSH data available.