JP2011504280A - 導電性が改善された透明導電性フィルム及びその製造方法 - Google Patents
導電性が改善された透明導電性フィルム及びその製造方法 Download PDFInfo
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Abstract
【選択図】図1
Description
本発明の他の実施形態は、添付の図面を参照して以下説明する。
また、カーボンナノチューブ220はナノサイズ(形状)であるため、表面積が大きく形成されている。
次に、本発明の実施例を詳細に説明し、カーボンナノチューブ複合体組成物の酸処理が、透明性を維持する一方で、透明導電性フィルムに優れた電気伝導度及び密着特性をもたらすことを示す。
1)カーボンナノチューブ:アーク放電方法で製造された単層カーボンナノチューブ(SAP:純度60〜70%)を用いた。カーボンナノチューブの長さは約20μmであり、厚さは約1.4nmである。
透明導電性フィルムの電気伝導度は、電極を形成するためにフィルム上の四隅を金でコーティングし、その表面抵抗を4点プローブ法(4point−probe)を用いてΩ/cm2の単位で測定した。
透明導電性フィルムの透過率は、紫外/可視分光光度計を用いて波長550nmで測定し、用いたベース基板又はガラスの透過率を100として換算した。
透明導電性フィルムの接着力は、透明電極がその上に形成されたPETフィルムにスコッチテープを貼り、一定時間後に剥がして、剥がしたスコッチテープに高分子バインダーまたはカーボンナノチューブが付着しているかどうかを判断した。
実施例1〜8
単層CNTを、水、及びSDSまたは界面活性剤を用いて調製した溶媒中に分散させた後、超音波分散法を用いて均一の分散溶液を調製した。CNTとSDSとは比率は1:1で存在し、溶液中にそれぞれ0.1wt%の濃度で分散させた。
単層CNTを、水及びイソプロピルアルコールの40:60混合溶液に分散させ、イオン伝導性高分子であるナフィオン(登録商標)とカーボンナノチューブとを1:1の比率で混合した。そして、溶媒中にそれぞれ0.1wt%の濃度になるように分散させた。
Claims (17)
- 溶媒にカーボンナノチューブを混合してカーボンナノチューブ複合体組成物を調製する段階と、
前記カーボンナノチューブ複合体組成物でベース基板上を被覆してカーボンナノチューブ複合体フィルムを形成する段階と、
前記カーボンナノチューブ複合体フィルムを酸溶液中に浸漬させ、カーボンナノチューブ複合体フィルムを蒸溜水で洗浄し、前記洗浄したカーボンナノチューブ複合体フィルムを乾燥する、前記ベース基板上に透明電極を形成するための、酸処理する段階と、
を有する透明導電性フィルムの製造方法。 - 前記溶媒は、水:イソプロピルアルコールが20:80〜80:20の体積比(vol%)である混合溶液であることを特徴とする請求項1に記載の透明導電性フィルムの製造方法。
- 前記カーボンナノチューブ複合体組成物が、界面活性剤又は高分子バインダーをさらに含むことを特徴とする請求項1に記載の透明導電性フィルムの製造方法。
- 前記カーボンナノチューブ複合体組成物は、前記溶媒100重量部に対して界面活性剤0.01〜2重量部、カーボンナノチューブ0.01〜2重量部を含むことを特徴とする請求項3に記載の透明導電性フィルムの製造方法。
- 前記界面活性剤は、ドデシル硫酸ナトリウム(SDS)又はドデシルベンゼンスルホン酸ナトリウム(NaDDBS)であることを特徴とする請求項4に記載の透明導電性フィルムの製造方法。
- 前記カーボンナノチューブ複合体組成物は、前記溶媒100重量部に対して高分子バインダー0.05〜1重量部、カーボンナノチューブ0.05〜1重量部を含むことを特徴とする請求項3に記載の透明導電性フィルムの製造方法。
- 前記高分子バインダーは、イオン伝導性又はイオン交換特性を有する樹脂を含み、前記樹脂は、フッ素原子を含み、かつ、カルボキシル、スルホニル、ホスホニル及びスルホンイミドから選択された少なくとも1つの官能基を含むことを特徴とする請求項6に記載の透明導電性フィルムの製造方法。
- 前記高分子バインダーと前記カーボンナノチューブは、1:5〜5:1で混合されることを特徴とする請求項6に記載の透明導電性フィルムの製造方法。
- 前記カーボンナノチューブ複合体組成物は、スプレイ法又はインクジェット法により前記ベース基板上を被覆することを特徴とする請求項1に記載の透明導電性フィルムの製造方法。
- 前記ベースフィルムは、ポリエステル系、ポリカーボネート系、ポリエーテルスルホン系、及びアクリル系高分子から選択される高分子フィルムであることを特徴とする請求項1に記載の透明導電性フィルムの製造方法。
- 前記ベースフィルムは、ガラス基板であることを特徴とする請求項1に記載の透明導電性フィルムの製造方法。
- 前記酸処理に用いられる前記酸溶液は、pHの範囲が−1〜3であることを特徴とする請求項1に記載の透明導電性フィルムの製造方法。
- 前記酸溶液は、過塩素酸、硝酸、塩酸、硫酸及びこれらの混合物からなる群より選択された一種を含むことを特徴とする請求項1に記載の透明導電性フィルムの製造方法。
- 前記カーボンナノチューブ複合体フィルムは、前記酸溶液に30分〜5時間浸漬させることを特徴とする請求項1に記載の透明導電性フィルムの製造方法。
- 請求項1に記載の透明導電性フィルムの製造方法により、ベース基板上のカーボンナノチューブで形成された透明電極を含むことを特徴とする透明導電性フィルム。
- 前記透明電極は、紫外/可視分光光度計を用いて、550nmの波長で測定した透過率が80%以上であることを特徴とする請求項15に記載の透明導電性フィルム。
- 前記透明電極は、4点プローブ法(4point−probe)法を用いて測定した表面抵抗が1000Ω/cm2以下であることを特徴とする請求項15に記載の透明導電性フィルム。
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KR101864906B1 (ko) | 2013-12-23 | 2018-07-04 | 주식회사 엘지화학 | 유기물 코팅성 및 전기 전도성이 우수한 전도성 고분자 막, 이를 포함하는 투명 전극 기판 및 디바이스 |
WO2016035454A1 (ja) * | 2014-09-05 | 2016-03-10 | 富士フイルム株式会社 | 熱電変換素子および熱電変換モジュールならびに熱電変換素子の製造方法および熱電変換モジュールの製造方法 |
JPWO2016035454A1 (ja) * | 2014-09-05 | 2017-07-06 | 富士フイルム株式会社 | 熱電変換素子および熱電変換モジュールならびに熱電変換素子の製造方法および熱電変換モジュールの製造方法 |
US10580953B2 (en) | 2014-09-05 | 2020-03-03 | Fujifilm Corporation | Thermoelectric conversion element, thermoelectric conversion module, method for manufacturing thermoelectric conversion element, and method for manufacturing thermoelectric conversion module |
JP2020048187A (ja) * | 2018-09-20 | 2020-03-26 | ▲楊▼▲澤▼川 | ゲーム機能を有する携帯電話保護フィルム |
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KR20090050014A (ko) | 2009-05-19 |
TW200935454A (en) | 2009-08-16 |
US20130256011A1 (en) | 2013-10-03 |
TWI379316B (en) | 2012-12-11 |
US8455043B2 (en) | 2013-06-04 |
US20100218979A1 (en) | 2010-09-02 |
KR101213787B1 (ko) | 2012-12-18 |
JP5473148B2 (ja) | 2014-04-16 |
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