ディチエノゲルモールは,大量ヘテロ結合太陽電池の融合電子ドナーとして使用されています
Chad M Amb1, Song Chen, Kenneth R Graham
1The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, Center for Macromolecular Science and Engineering, University of Florida, Box 117200, Gainesville, Florida 32611, USA.
Journal of the American Chemical Society
|June 8, 2011
まとめ
研究者らは,太陽電池用の新しいディチエノゲルモール (DTG) 含有ポリマーを開発した. このポリマーは,改善された電流と充填因子により,ダイテノシロール (DTS) の同位体 (6.6%) よりも高い電力変換効率 (7.3%) を達成しました.
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
- フォトボルトイカは,太陽光発電です.
背景:
- 結合ポリマーは,有機太陽電池の重要な材料です.
- ディチエノシロール (DTS) は,高性能ポリマーの一般的なヘテロサイクルです.
- 新しいヘテロサイクルの探求は,光伏の性能の改善につながる可能性があります.
研究 の 目的:
- 第1回ディチエノゲルモル (DTG) を含む結合ポリマーを合成し,特徴づけること.
- 新しいDTGポリマーの大量ヘテロジュンクション光伏性能を評価するために.
- DTGベースの太陽電池の性能を,類似のDTSベースのセルと比較するために.
主な方法:
- 静かなポリコンデンサーションは,ディスタニル-DTG誘導体と1,3-ジブロモ-N-オクチル-チエノピロロディオン (TPD) から交代コポリマーを合成するために使用されました.
- その結果得られたポリマー (polyDTG-TPD) は,PC(70) BMと混ぜて,反転型バルクヘテロジャンクション太陽電池で使用した.
- 電力変換効率,ショート回路電流,オープン回路電圧,充填因子を含む光伏の性能を測定し,比較しました.
主要な成果:
- 合成されたDTGを含むコポリマーは,最大735nmの光を吸収した.
- DTGポリマーは,同類のDTSポリマーと比較して,より高い最高占有分子軌道 (HOMO) レベルを示した.
- ポリDTG-TPD:PC(70) BM混合物で製造された反転型太陽電池は,平均 7.3% の電力変換効率を達成し,DTSベースの電池 (6.6%) を上回りました.
- 効率の向上は,開いた回路の電圧がわずかに低いにもかかわらず,より高いショート回路電流と充填因子に起因する.
結論:
- ディチエノゲルモール (Dithienogermole,DTG) は,有機太陽光発電における高性能結合ポリマーの有望な新しい構成要素である.
- DTGベースのポリマーは,DTSベースのポリマーの実行可能な代替品を提供し,大量ヘテロジャンクション太陽電池の電力変換効率の向上を示しています.
- DTGの化学に関するさらなる研究は,より効率的で安定した有機太陽電池装置につながる可能性があります.
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