小分子量の有機薄膜を用いた効率的な大量ヘテロジャンクション光電池
Peter Peumans1, Soichi Uchida, Stephen R Forrest
1Center for Photonics and Optoelectronic Materials (POEM), Department of Electrical Engineering and the Princeton Materials Institute, Princeton University, Princeton, New Jersey 08544, USA.
Nature
|September 12, 2003
まとめ
研究者らは,効率的な有機太陽電池を作成するために,金属キャップを使用した新しい冷却方法を開発しました. この技術は,小分子有機光伏装置の相互浸透ネットワークを可能にすることで,電力変換効率を高めます.
科学分野:
- マテリアルサイエンス 材料科学
- オーガニック・エレクトロニクス
- 再生可能エネルギーの再生可能エネルギー
背景:
- 有機光伏 (OPV) 細胞は,ドナー-受容体のヘテロ結合により,効率が向上しています.
- ポリマーOPVの大量ヘテロジュンクションは,相互に浸透するネットワークを作成することによって効率を改善します.
- 小分子OPVのバルクヘテロ結合を真空沉積で達成することは,大変な課題でした.
研究 の 目的:
- バルクヘテロジュンクションを真空で積もった小分子有機太陽電池で作成する方法を開発する.
- 小分子OPVにおける表面粗化とデバイスの短路の限界を克服するために.
- 有機光伏装置の電力変換効率を高めるために.
主な方法:
- 熱解熱中に有機物質を閉じ込めるために金属のキャップを使用しました.
- フィルムの形状を制御するためにストレートアニリングプロセスを採用しました.
- 小分子フィルムで相互に浸透するドナー-受容体ネットワークの形成を調査した.
主要な成果:
- 金属キャップを使用することで,リネーリング中に表面の荒れを防ぐ.
- 小分子フィルムで真空で積もった相互に浸透するドナー-受容体ネットワークを成功裏に形成した.
- 2層のデバイスと比較して,電力変換効率の50%の増加を達成しました.
結論:
- メタル・キャプテッド・アニリング・メソッドは,小分子有機太陽電池における効率的な大量ヘテロ結合の形成を可能にします.
- この技術は,低コストで高効率の薄膜有機太陽電池への道を開きます.
- ストレントアニリングプロセスは,有機光伏技術の進歩のための有望な戦略です.
関連する概念動画
Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow
219
Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug...
219
Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment
261
Hepatic impairment, characterized by decreased liver function, does not uniformly mandate adjustments in drug dosage. Whether dosage modifications are necessary depends on various factors related to the drug's metabolism and elimination pathways. If a drug is primarily excreted via the kidneys and bypasses significant hepatic processing, if it undergoes minimal metabolic transformation in the liver, or if it is volatile and primarily expelled through the lungs, dose adjustments may not be...
261
siRNA - Small Interfering RNAs
18.4K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
18.4K
Small interfering RNAs (siRNA)
4.3K
No description available
4.3K
Hepatic Portal System
5.6K
The hepatic portal system, a critical part of our circulatory framework, transports nutrient-laden, deoxygenated blood from the gastrointestinal tract and spleen to the liver. This ingenious system plays an indispensable role in maintaining our body's metabolic equilibrium.
At its core, the hepatic portal vein is the result of a confluence of the superior and inferior mesenteric veins along with the splenic vein. Each of these veins has a unique role. The superior mesenteric vein is...
At its core, the hepatic portal vein is the result of a confluence of the superior and inferior mesenteric veins along with the splenic vein. Each of these veins has a unique role. The superior mesenteric vein is...
5.6K
Hepatic Drug Excretion: Influencing Factors
539
The biliary system of the liver, crucial for bile secretion and drug excretion, comprises intrahepatic bile ducts that merge to form the common hepatic duct. This duct, carrying hepatic bile, combines with the cystic duct, draining the gallbladder and forming the common bile duct, which empties into the duodenum. Bile, produced by hepatic cells lining the bile canaliculi, is composed primarily of water, bile salts, pigments, electrolytes, and lesser amounts of cholesterol and fatty acids. Bile...
539