期刊論文
| 學年 | 107 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2018-12-25 |
| 作品名稱 | Thienoisoindigo-Based Dopant-Free Hole Transporting Material for Efficient p–i–n Perovskite Solar Cells with the Grain Size in Micrometer Scale |
| 作品名稱（其他語言） | |
| 著者 | Chih-Hsin Chen; Yu-Ting Hsu; Bo-Cheng Wang; Chung-Lin Chung; Chih-Ping Chen |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | The Journal of Physical Chemistry C 123(3), p.1602-1609 |
| 摘要 | In this study, a series of 2,2′ and 3,3′ substituted thienoisoindigo (TII)-based small molecules (H3–H7) were synthesized by using 1,3-di(9H-carbazol-9-yl) benzene, N-phenylcarbazole, triphenylamine, and benzene as electron donor (D) at the periphery, while TII as electron acceptor (A) at the core. The highest occupied molecular orbital energy levels of H3–H7 range from −5.31 to −5.43 eV, while their lowest unoccupied molecular orbital energy levels range from −3.43 to −3.59 eV. Under AM 1.5 condition, the perovskite solar cell (PSC) with inverted p–i–n device structure using H7 as the dopant-free hole transporting material achieved a power conversion efficiency (PCE) of 12.1%, which is comparable to that using PEDOT:PSS as the hole transporting material (12.0%). Under an argon atmosphere, the PCE of H7-based PSC did not decay within 168 h, and it can retain 86.3% of its original PCE after 1000 h. The morphology study revealed that the film of H3–H7 was smooth and hydrophobic, while the perovskite film spin-coated on H3–H7 film was uniform with the grain size in micrometer scale. Although the time-resolved photoluminescence spectra of the perovskite films suggested that the hole extraction capability of H7 is weaker than that of PEDOT:PSS, the improved film morphology of the film in H7-based PSC accounts for its comparable PCE to PEDOT:PSS-based PSC. |
| 關鍵字 | |
| 語言 | en_US |
| ISSN | 1932-7455 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/116978 ) |