:::
  • ENGLISH
  • 網站導覽
:::

化學系林彥多助理教授發表最新期刊論文

  • 04/15/2022
  • |
  • 校園頭條
  • |
  • 資料提供:研究發展處

【研究發展處訊】

化學系林彥多助理教授發表最新期刊論文

High-performance perovskite solar cells based on dopant-free hole-transporting material fabricated by a thermal-assisted blade-coating method with efficiency exceeding 21%

作者:Kun-Mu Lee, Wei-Hao Chiu, Yu-Hsiang Tsai, Chao-Shian Wang, Yu-Tai Tao, Yan-Duo Lin

Chemical Engineering Journal (SCI)

卷期數:427

文獻號碼:131609

出版日期:Jan. 2022

Abstract

As the performance in terms of efficiency and device stability of perovskite solar cells (PSCs) has made rapid progress in a short period of time, the upscaling of PSCs becomes an important issue for massive commercial applications, where the cost of device manufacturing is a determining factor for wide spread uses. Device fabrication by printing technique is one such low-cost process for large scale preparation. However, one of the reasons limiting the progress of a fully printed PSCs is the lack of appropriate hole-transporting materials (HTMs) that can be printed. Herein, a new donor–acceptor-donor (D-A-D) type hole-transporting material with 4- dicyanomethylene-4H-cyclopenta[2,1-b;3,4-b’]dithiophene (diCN-CPDT) core tethered with two bis(alkoxy) diphenylaminocarbazole periphery groups, namely CB, was synthesized and applied as dopant-free HTM in fully printed PSCs by thermal-assisted blade-coating (TABC) method. The PSCs fabricated by fully scalable processes based on dopant-free CB as HTM exhibited an impressive power conversion efficiency (PCE) up to 21.09%, which is higher than that of devices with doped 2,2′,7,7′ -tetrakis-(N,N-di-p-methoxyphenylamine)9,9′-spirobifluorene (spiro-OMeTAD) (14.28%) under the same fabricating condition. Furthermore, the all TABC process is demonstrated to produce an area of 10 cm × 10 cm for the devices except for electrode with an average PCE of 19.68%. Additionally, the TABC-based dopant-free CB-based PSCs exhibited significantly improved long-term stability, retaining more than 94% PCE after 500 h compared to that using doped spiro-OMeTAD under a relative humidity of ~50%. This result demonstrated that the newly developed CB is a promising candidate HTM for highperformance fully printable PSCs.

研究事務組提醒:教師如有最新發表於AHCI、SSCI、SCI、EI、TSSCI、THCI、「東吳大學外語學門獎勵名單」之期刊論文,歡迎將相關資訊e-mail至rad@scu.edu.tw,研究發展處將會公告於校園頭條,以廣交流。

【文圖/研究事務組游晴如組員】