4.6 Article

Enabling Efficient Tandem Organic Photovoltaics with High Fill Factor via Reduced Charge Recombination

期刊

ACS ENERGY LETTERS
卷 4, 期 7, 页码 1535-1540

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.9b00896

关键词

-

资金

  1. Air Force Office of Scientific Research (AFOSR) [FA2386-18-1-4094]
  2. Office of Naval Research (ONR) [N00014-17-1-2,484]
  3. UC-Solar Program [MRPI 328368]
  4. National Key Research and Development Program of China [2016YFA0202402]
  5. National Natural Science Foundation of China [61674108, 91833303]
  6. 111 Program
  7. Collaborative Innovation Center of Suzhou Nano Science and Technology
  8. Chinese Scholars Council [201706920073]

向作者/读者索取更多资源

Compared with inorganic photovoltaics, organic photovoltaics (OPVs) still have a low fill factor (FF) that restricts their power conversion efficiency (PCE). The FF is determined by the resistances that are influenced by carriers recombination. In this work, the tandem structure is demonstrated to be a feasible solution to improve the FF of OPVs. The recombination losses of subcells in the tandem structure are reduced and consequently improves the FF. When the two subcells are stacked in a tandem structure, the highest value of the FF reaches 76.6%, much higher than that of 66.1% achieved by its single junction device. Finally, a PCE of 14.1% with a FF of 73.6% is achieved in a tandem OPV after optimizing the thickness of each active layer. This work not only demonstrates the inherent mechanism for a higher FF in tandem OPVs but also presents a feasible solution for high-performance photovoltaic devices.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据