Journal of Energy Chemistry 刊发
秦平力老师课题组
PEDOT:F应用于n-i-p型钙钛矿太阳能电池的研究
导读
2024年2月9日
Journal of Energy Chemistry
在线刊发了武汉工程大学秦平力老师课题组题为
《Alcohol-dispersed polymer complex as an effective and durable interface modifier for n-i-p perovskite solar cells》
的研究论文。论文共同第一作者为硕士生石畅和本科生李江凌,论文第一单位为武汉工程大学。
摘要
研究内容
Fig. 1. (a) Device structure and chemical structure of PEDOT:F with an electrostatic interaction between them (marked with a green dashed line). (b) Illuminated J-V characteristics of the PSC with PFSA and PEDOT:F treatment. (c) J-V curve of the champion PSC device (with 2.0 mg mL−1 PEDOT:F treatment). (d) IPCE spectra and the corresponding integrated Jsc.
Fig. 2. (a) UV-vis absorption. (b) XRD spectra. (c) 1D GIWAXS of the perovskite films with PFSA and PEDOT:F treatment. 2D GIWAXS patterns of the perovskite films (d) without, (e) with PFSA, and (f) with PEDOT:F treatment.
Fig. 3. SEM and AFM images of the perovskite films (a, d) without, (b, e) with PFSA, and (c, f) with PEDOT:F treatment.
Fig. 4. XPS core-level spectra of perovskite films with PFSA and with PEDOT:F treatment: (a) Pb 4f, and (b) I 3d. (c) FTIR spectra of the perovskite films with PFSA and with PEDOT:F treatment. Raman spectra of (d) PEDOT:F+FAI+MAI (mol/mol/mol = 0.25:1:0.5) mixture. (e) Steady-state PL and (f) TRPL spectra of perovskites with PFSA and PEDOT:F treatment.
Fig. 5. Schematic illustration of (a) the structural transformation of PEDOT and (b) the potential surface defect sites. (c) SCLC curves of the hole-only devices in the darkness. (d) EIS spectra of the PSC (the equivalent circuit is shown in this inset) with PFSA and PEDOT:F treatment (measured under dark conditions). (e) PCE as a function of time at a fixed voltage of the maximum power point (1.00 V) on the J-V curve. Long-term stability of the unencapsulated control device, PFSA- and PEDOT:F-treated device.
Fig. 6. (a) Photographs of degradation of the perovskite films exposed to 70% RH. The corresponding UV-vis absorption spectra of the perovskite films (b) without, (c) with PFSA- and (d) PEDOT:F-treated. (e) Stored at RT and approximately 30% humidity. (f) Exposed to illumination under a 150 W wLED with 0.8 sun in ambient air, and (g) annealed at 85 °C in a glove-box with an Ar atmosphere. A total of 40 unencapsulated devices were monitored for device stability.
研究成果
作者简介
第一通讯作者简介:
| 秦平力 武汉工程大学
秦平力,男,汉族,博士,教授,中共党员,第二届武汉工程大学青年骨干教师。2006年广西大学凝聚态物理专业硕士研究生毕业,2012年武汉大学微电子学与固体电子学专业博士毕业,同年晋升副教授。2012-2018年先后在武汉大学和香港理工大学从事博士后研究工作,主要研究光学功能材料与太阳电池器件。2019年12月晋升教授。在国内外期刊发表被SCI收录论文80多篇,其中以第一作者身份在国际顶级期刊Advanced Materials(IF=30.849), Advanced Functional Materials (IF=18.808), Journal of Materials Chemistry A (IF=12.732)上发表多篇论文,引用次数3500次,H因子31。目前的主要研究方向为硫化物金属纳米材料与钙钛矿电池。
第一作者简介:
| 石畅 武汉工程大学
石畅,硕士研究生在读,2021年9月进入武汉工程大学秦平力老师课题组,攻读硕士学位。主要研究方向为钙钛矿光敏层间界面调控以及电荷传输层表面修饰,致力于调控阳极侧界面,实现高效稳定的钙钛矿太阳能电池。发表SCI论文6篇,其中以第一作者或共同第一作者发表3篇。
共同第一作者简介:
| 李江凌 武汉工程大学
李江凌,21级光电本科生在读,大二开始进入秦平力老师课题组,主要研究方向为通过钝化剂和反溶剂作用于钙钛矿太阳能电池以提升其性能。大一大二两学年连获两次三好学生荣誉称号,综合奖学金三等奖一次。
编辑 | 石畅
校对 | 石畅
审稿 | 秦平力