Extremely lightweight and ultra-flexible infrared light-converting quantum dot solar cells with high power-per-weight output using a solution-processed bending durable silver nanowire-based electrode†,Energy & Environmental Science

当前位置： X-MOL 学术 › Energy Environ. Sci. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Extremely lightweight and ultra-flexible infrared light-converting quantum dot solar cells with high power-per-weight output using a solution-processed bending durable silver nanowire-based electrode†
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2017-12-13 00:00:00 , DOI: 10.1039/c7ee02772a
Xiaoliang Zhang _{1,

2,

3,

4,

5} , Viktor A. Öberg _{5,

6,

7,

8,

9} , Juan Du _{1,

2,

3,

4} , Jianhua Liu _{1,

2,

3,

4} , Erik M. J. Johansson _{5,

6,

7,

8,

9}

Affiliation

Lightweight and flexible solar cells are highly interesting materials for use in new applications, such as spacecraft, aircraft and personal pack load. PbS colloidal quantum dots (CQDs) exhibit a broad and strong light absorption spectrum covering the ultraviolet-visible-near infrared region, allowing for incorporation of very thin CQD films into solar cells with high power conversion efficiency (PCE) from solar light to electricity. Herein, we report an extremely lightweight and ultra-flexible CQD solar cell constructed on a polyethylene naphthalate substrate with a thickness of 1.3 μm. A solution-processed Ag nanowire network with excellent mechanical, optical and electrical properties was prepared as the front-electrode in the solar cell. The thickness of the complete CQD solar cell is less than 2 μm, and ∼10% PCE with a weight of 6.5 g m⁻² is achieved, resulting in a power-per-weight output of 15.2 W g⁻¹. The flexible solar cell possesses durable mechanical properties and maintains high-level photovoltaic performance under extreme deformation and after repeated compression–stretching deformation. Moreover, the flexible CQD solar cell shows impressive stability both under continuous illumination and after storage under ambient conditions. These results reveal that solution-processed CQDs are compatible with an ultra-flexible substrate for the construction of ultra-lightweight infrared light-converting CQD solar cells with possibilities for new exciting solar energy applications.

中文翻译：

使用溶液处理的弯曲耐用银纳米线基电极，具有超高单位重量输出的超轻量和超柔韧性红外光转换量子点太阳能电池†

轻巧和灵活的太阳能电池是用于新应用（例如航天器，飞机和个人行李箱负载）的非常有趣的材料。PbS胶体量子点（CQD）表现出覆盖紫外线可见近红外区域的宽而强的光吸收光谱，从而可以将非常薄的CQD膜结合到太阳能电池中，具有从太阳光到电能的高功率转换效率（PCE）。本文中，我们报道了一种构造在厚度为1.3μm的聚萘二甲酸乙二醇酯基板上的超轻质，超柔韧性CQD太阳能电池。具有优异的机械，光学和电学性质的溶液处理的银纳米线网络被制备为太阳能电池中的前电极。完整的CQD太阳能电池的厚度小于2μm，重量约为6.5 gm的PCE约为10％达到^-2，导致每重量功率输出为15.2 W g^-1。柔性太阳能电池具有持久的机械性能，并在极端变形和反复压缩拉伸变形后保持高水平的光伏性能。此外，柔性CQD太阳能电池在连续照明和在环境条件下存放后均显示出令人印象深刻的稳定性。这些结果表明，固溶处理的CQD与超柔性基板兼容，可用于构建超轻型红外光转换CQD太阳能电池，并有可能用于新的令人兴奋的太阳能应用。

更新日期：2017-12-13

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11