当前位置:首页>太原>太原理工大学王忠强EES:27.12%刚性!24.95%柔性!两亲性交联单体增强柔性钙钛矿太阳能电池的性能和可扩展性!

太原理工大学王忠强EES:27.12%刚性!24.95%柔性!两亲性交联单体增强柔性钙钛矿太阳能电池的性能和可扩展性!

  • 2026-02-08 11:40:06
太原理工大学王忠强EES:27.12%刚性!24.95%柔性!两亲性交联单体增强柔性钙钛矿太阳能电池的性能和可扩展性!

文章介绍

柔性钙钛矿太阳能电池(f-PSC)在便携供电场景中极具潜力,可与传统硅电池互补,但其商业化关键在于能否放大溶液法沉积。目前,钙钛矿在自组装分子(SAM)上的不均匀沉积成为大面积制备无针孔、均一薄膜的主要障碍。

基于此,太原理工大学王忠强、广西大学Lin Xie、中科院宁波材料所宋伟、葛子义等人开发了一种两亲可交联单体(TBA),它既能促进柔性基底上的钙钛矿生长,又能在放大过程中保证沉积均一。TBA的引入提升了钙钛矿墨水对下层疏水SAM的润湿性与附着力,在刚性/柔性基底上均可获得高质量、均匀的钙钛矿薄膜,验证了可扩展制备的可行性。最终,改性器件分别实现27.12%(认证26.41%,刚性)和24.95%(柔性)的光电转换效率,兼具出色的机械与运行稳定性。经 10000次弯折及1000 h连续工作后,TBA改性 f-PSC仍保持初始效率的90%以上。此外,大面积钙钛矿模组(PSM)也分别取得23.10%(刚性)和20.38%(柔性)的亮眼效率,彰显该策略的放大潜力,为高性能f-PSC的产业化开辟了新路径。论文近期以“Exploring a Scalable Route for Efficient Flexible Perovskite Solar Cells via Amphiphilic Cross-linkable Monomer”为题发表在顶级期刊Energy & Environmental Science上。

   图文信息   

1. BEM与钙钛矿的材料设计及相互作用机制(A) 两亲可交联单体的材料设计以及TBA的开环聚合反应。(B) 两亲可交联单体实现可扩展制备与稳定性提升的示意图。

2. 钙钛矿薄膜的形貌与力学性能。(A–C)对照组(A)及分别添加TANB)和TBAC)的钙钛矿薄膜在PEN/ITO基底上的俯视SEM图像及相应晶粒尺寸分布。(D–F) 对照组(D)、TAN改性(E)和TBA改性(F)钙钛矿薄膜的KPFM图像。(G–I) 对照组(G)、TAN改性(H)和TBA改性(I)钙钛矿薄膜的杨氏模量。(J–L) 对照组(J)及TANK)和TBAL)改性钙钛矿薄膜在0.5°入射角下的GIXRD谱图。(M) 对应的2θ–sin²φ线性拟合。

图3. 载流子动力学与非辐射复合过程。(A) PSCs的能级图。(B) 钙钛矿薄膜的紫外-可见吸收光谱与稳态PL光谱。(C) 沉积在玻璃上的钙钛矿薄膜的TRPL衰减曲线。(D–F) 对照组(D)、TAN改性(E)和TBA改性(F)钙钛矿薄膜的PL mapping图。(G) 器件的Nyquist图。(H) 器件的Mott–Schottky图。(I) 单电子器件SCLC测量的暗态J–V曲线。

4. 小面积器件的光伏性能与稳定性。(A)柔性钙钛矿太阳能电池(f-PSC)的器件结构。(B) 刚性PSCJ–V曲线。(C) 柔性PSCJ–V曲线。(D) f-PSC在连续光照与昼夜循环模式下的工作稳定性。(E) 100 mW cm² LED连续光照下进行最大功率点(MPP)追踪测试的器件稳定性。(F, G) MPP追踪100小时后的ToF-SIMS深度分布图及对应的三维重构结果:(F) 对照器件,(G) TBA改性器件。

图5. 对疏水基底的润湿性改善与可扩展制备潜力。(A) 微型模组的结构示意图。(B) 最佳刚性微型模组的J–V曲线。(C) 最佳柔性微型模组的J–V曲线。(D) 对照与TBA改性微型模组的EL成像图。(E, F) 钙钛矿墨滴在疏水基底上于环境条件下的干燥过程:(E) 无TBA,(F) 含TBA。(G) 干燥过程中钙钛矿墨滴覆盖率的演变。(H) 墨滴在疏水基底上干燥收缩的示意图。(I) 两亲可交联单体“钉扎”效应的示意图。

总之,作者等人开发了一种两亲可交联单体(TBA),用于提升柔性钙钛矿太阳能电池(f-PSC)的性能与可扩展性。TBA 独特的疏水-亲水双亲结构,一方面显著改善钙钛矿墨水在疏水基底上的润湿性,另一方面调控结晶过程,这对在刚性/柔性基底上实现大面积无针孔、均一钙钛矿薄膜至关重要。最终,TBA 改性器件分别获得27.12%(认证26.41%,刚性)和24.95%(柔性)的光电转换效率,并展现出优异的机械与运行稳定性:经历10000次弯折及1000 h连续工作后,仍保持初始效率的90%以上。该策略的放大潜力通过10.24 cm²孔径面积的大面积模组得到验证,刚性/柔性模组分别实现23.10%20.38%的效率。本工作为同时提升 f-PSC的效率与可靠性提供了可行路径,为其商业化与大规模产业化奠定了坚实基础。

器件制备

器件结构:

Glass/ITO/4PADCB/PVK/PI/C60/BCP/Ag

1.洗干净的ITO玻璃,等离子体处理5 min0.8 mg mL¹ 4PADCB EtOH3000rpm 30s旋涂,120°C退火10 min

2. 1.62 M Cs.₀₅(FA.₉₈MA.₀₂).₉₅(I.₉₅Br.₀₅)₃(FAIMABrCsIPbI₂PbBr₂溶于DMF:DMSO= 4:1v/v),添加0.3 mg TANTBA,室温下搅拌6 h4000rpm 30s旋涂,15s 600uL DE反相,100°C退火30 min

3. 1 mg/mL PI IPA5000rpm 25s旋涂,100°C退火5 min

4. 蒸镀25 nm C6010 nm BCP100 nm Ag

组件:

1. P1刻蚀(1030 nm400 fs0.5 MHz2000 mm s¹,平均功率 10.063 W),清洗,0.8 mg mL¹ 4PADCB 4000rpm 30s旋涂,120°C退火10 min

2.钙钛矿前驱液5000rpm 30s旋涂,15s 3000 μL DE反相,100°C退火30 min

3. 1.0 mg mL¹ PI 6000rpm 25s旋涂,100°C退火5 min

4. P2刻蚀,P1相同激光,功率 3.123 W

5. 蒸镀100 nm Ag

6. P3刻蚀(功率 4.858 W,速度 3000 mm s¹)。

文章信息

C. Xing, W. Zhang,H. Zhou, J. Xie, S. Huang, S. Gao, L. He, Z. Wang, L. Xie, M. Yang, W. Song and Z. Ge, Exploring a Scalable Route for Efficient Flexible Perovskite Solar Cells via Amphiphilic Cross-linkable Monomer, Energy Environ. Sci.,2026, DOI: 10.1039/D5EE07050C.

DOI:10.1039/D5EE07050C
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  1. CONNECT:[ UseTime:0.000917s ] mysql:host=127.0.0.1;port=3306;dbname=h460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001349s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000683s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000678s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001327s ]
  6. SELECT * FROM `set` [ RunTime:0.000586s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001451s ]
  8. SELECT * FROM `article` WHERE `id` = 465364 LIMIT 1 [ RunTime:0.001306s ]
  9. UPDATE `article` SET `lasttime` = 1771913637 WHERE `id` = 465364 [ RunTime:0.009441s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.003511s ]
  11. SELECT * FROM `article` WHERE `id` < 465364 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002930s ]
  12. SELECT * FROM `article` WHERE `id` > 465364 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.004746s ]
  13. SELECT * FROM `article` WHERE `id` < 465364 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.015081s ]
  14. SELECT * FROM `article` WHERE `id` < 465364 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.013081s ]
  15. SELECT * FROM `article` WHERE `id` < 465364 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.033725s ]
0.254678s