나노셀룰로오스를 이용한 태양전지 기판용 고투명 필름 제조를 위한 기초연구open accessFundamental Study on Highly Transparent Films for Solar Cell Substrate Using Nanocellulose
- Other Titles
- Fundamental Study on Highly Transparent Films for Solar Cell Substrate Using Nanocellulose
- Authors
- 조해민; 이수현; 이지영
- Issue Date
- Dec-2023
- Publisher
- 한국펄프·종이공학회
- Keywords
- Solar cell substrate; transparency; transparent film; cellulose nanocrystal; cellulose nanofiber
- Citation
- 펄프종이기술, v.55, no.6, pp 109 - 118
- Pages
- 10
- Indexed
- SCOPUS
KCI
- Journal Title
- 펄프종이기술
- Volume
- 55
- Number
- 6
- Start Page
- 109
- End Page
- 118
- URI
- https://scholarworks.gnu.ac.kr/handle/sw.gnu/69291
- DOI
- 10.7584/JKTAPPI.2023.12.55.6.109
- ISSN
- 0253-3200
- Abstract
- In this study, we conducted a fundamental investigation on the manufacturing of transparent films suitable for solar cell substrates using nanocellulose prepared from non-woody pulps. Cellulose nanocrystals (CNCs) were prepared using paper mulberry pulp, while quaternized cellulose nanofibers (Q-CNFs) and carboxymethylated cellulose nanofibers (CM-CNFs) were prepared using cotton lint mixed pulp (CLMP). The films were manufactured by adjusting the size of CNCs, zeta potential of CNFs, and CNC/CNF mixing ratio using a combined technique of vacuum-assisted and evaporation-induced selfassembly methods,depending on the type of nanocellulose. The thickness, transparency, and b* of the films were measured to determine the optimal manufacturing conditions.
The films prepared with only the smallest CNC (Short-CNC) showed higher transparency than those prepared with a mixture of Short-CNC and the longest CNC (Long-CNC). The transparency of the films prepared with Short-CNC and Q-CNF decreased because of the flocs induced by the attractive interaction between them. Meanwhile, the films prepared with Short-CNC and CM-CNF showed high transparency because Short-CNC and CM-CNF comprised negative charges. The CNC/CM-CNF mixing ratio of 5:5 resulted in the highest transparency of the film. Therefore, highly transparent films suitable for solar cell substrates can be manufactured by combining CNCs and CM-CNFs.
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