関連する実験動画
Updated: Feb 2, 2026

05:15
Flash Infrared Annealing for Perovskite Solar Cell Processing
Published on: February 3, 2021
8.7K
結合ポリマーによる調整された相変換は,効率が21を超えた熱的に安定したペロブスキート太陽電池を可能にします
Lei Meng1,2, Chenkai Sun2, Rui Wang1
1Department of Materials Science and Engineering , University of California , Los Angeles , California 90095 , United States.
Journal of the American Chemical Society
|November 20, 2018
まとめ
新しいポリマー層は,表面の欠陥とキャチオン損失を制御することによって,ペロブスキート太陽電池 (pero-SC) の安定性と効率を高めます. この方法により 次世代の太陽光発電の性能と耐久性が向上します
科学分野:
- 材料科学
- 太陽光発電
- 化学工学
背景:
- ペロブスキート表面ステキオメトリーとイオン欠陥の正確な制御は,高性能で安定したペロブスキート太陽電池 (ペロ-SC) に不可欠です.
- 溶液で処理されたペロブスキートフィルムは,熱冷却中に表面の劣化とカチオン損失に苦しんでおり,デバイスの効率と寿命に影響します.
研究 の 目的:
- 低コストの結合ドナーポリマー (PTQ10) を介面層として導入し,ペロブスキート膜の表面特性を改善する.
- ペロブスキート相変換,結晶方向,および電荷輸送に対するPTQ10界面層の影響を調査する.
主な方法:
- 平面 n-i-p 構造のペロ-SC アーキテクチャが採用されました.
- PTQ10ポリマーは,熱アニリング前にペロブスキート中間層に適用されました.
- ペロブスキート膜の特性,装置の性能,および安定性の特徴づけが行われました.
主要な成果:
- PTQ10層は,熱冷却中の有機カチオン損失を大幅に削減しました.
- ペロフスキットの相変換運動は好ましい影響を受け,より好ましい結晶の方向性をもたらした.
- ポリマーは最適なエネルギー配列を持つ 効果的な穴抜き層として機能した.
- 81.6%の充填率で21.2%のチャンピオンパワー変換効率を達成しました.
- ペロ-SCは優れた環境と熱の安定性を示した.
結論:
- PTQ10をインターフェイス層として簡単に適用することは,溶液処理ペロ-SCの性能と安定性を高める有望な戦略です.
- このアプローチは,ペロブスキットの表面化学を制御し,デバイスの特性を改善するための費用対効果の高い方法を提供します.
関連する概念動画
Phase II Conjugation Reactions: Overview
839
Conjugation, a key component of phase II biotransformation reactions, is a vital process in drug detoxification. It involves transferring endogenous substances like glucuronic acid, sulfate, and glycine to drugs or their metabolites formed in phase I reactions. These conjugation reactions, often catalyzed by specific enzymes, transform potentially harmful metabolites into inactive, water-soluble forms easily excreted in urine or bile. By enhancing polarity and eliminating pharmacological...
839
Phase II Reactions: Miscellaneous Conjugation Reactions
367
Phase II biotransformations are detoxification mechanisms that conjugate xenobiotics with endogenous substances, neutralizing their toxicity.
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
367
Gene Conversion
10.6K
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
10.6K
Gene Conversion
3.1K
3.1K
Polymers
40.9K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
40.9K
Phase II Reactions: Sulfation and Conjugation with α-Amino Acids
956
Sulfation and α-amino acid conjugation are two critical biotransformation reactions in drug metabolism. Sulfation, a phase II biotransformation reaction, involves adding a polar sulfate group to a drug, enhancing its water solubility and promoting excretion. This process can either co-occur with or occur independently of glucuronidation. Nonmicrosomal sulfotransferase enzymes catalyze the process. The reaction involves 3'-phosphoadenosine-5'-phosphosulfate or PAPS coenzyme...
956

