利用碳氫鍵芳香環化反應一步合成含EDOT電洞傳輸材料及其於鈣鈦礦太陽能電池之應用;Direct C-H Arylation as Single-Step Access to EDOT-Based Hole Transporting Materials for Perovskite Solar Cells

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Title:	利用碳氫鍵芳香環化反應一步合成含EDOT電洞傳輸材料及其於鈣鈦礦太陽能電池之應用;Direct C-H Arylation as Single-Step Access to EDOT-Based Hole Transporting Materials for Perovskite Solar Cells
Authors:	林柏諭;Lin, Po-Yu
Contributors:	化學工程與材料工程學系
Keywords:	碳氫鍵芳香環化;電洞傳輸材料;鈣鈦礦太陽能電池
Date:	2017-08-02
Issue Date:	2017-10-27 12:57:55 (UTC+8)
Publisher:	國立中央大學
Abstract:	鈣鈦礦太陽能電池中電洞傳輸材料是相當重要的一部分，而電洞傳輸材料由幾種不同類型的分子合成，例如：無機材料、有機高分子及有機小分子。其中有機小分子因為其合成過程對環境污染較低以及整體所需成本也不高，使得許多科學家致力於以有機小分子合成電洞傳輸材料，然而傳統合成的方法需較多且複雜的步驟。於本文中將介紹具有步驟經濟效益之策略來合成小分子有機電洞材料，利用鈀催化直接碳氫鍵芳香環化反應，合成以各式推電子 (Donor) 與3,4-二氧乙烯噻吩所形成的小分子有機電洞傳輸材料，且此方法可將反應步驟從先前傳統人名反應中的三個步驟減少到只需要一個步驟就可完成。本文中將合成的一系列D-π-D形式的小分子有機電洞傳輸材料應用於鈣鈦礦太陽能電池 (PSCs) 上，並且比較不同推電子 (Donor) 之間對於鈣鈦礦太陽能電池 (PSCs) 之光電轉換效率的影響。其中以電洞傳輸材料PY01應用在鈣鈦礦太陽能電池 (PSCs) 之光電轉換效率為10.26 % 最為突出。這項研究可給予材料科學家們新的思維，可利用更加經濟實惠、更少合成步驟的方法合成具功能性的有機小分子。;Because of the exceptional stability and electron-donating ability of 3,4-ethylenedioxythiophene (EDOT), a series of EDOT-based Hole Transporting Materials (HTM) are synthesized by Pd-catalyzed direct C-H (hetero) arylations in good yields. This report provides a broad substrate scope of symmetric D--D type HTMs combining EDOT with various donor groups, such as triphenylamine, carbazole and phenothiazine. For applications in Perovskite solar cells (PSCs), PY01 gives a Voc of 0.93 V, a Jsc of 17.78 mA/cm2, and a FF of 62%, which corresponds to an overall power conversion efficiency (PCE) of 10.23%. Its HOMO level of -5.23 eV is slightly lower than that of Spiro-OMeTAD (-5.21eV). This work is expected to introduce a practical and step-economical synthetic route to access High-efficiency Hole Transporting Materials.
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] Electronic Thesis & Dissertation

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