کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11031047 | 1646086 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
14.1% efficiency hybrid planar-Si/organic heterojunction solar cells with SnO2 insertion layer
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: 14.1% efficiency hybrid planar-Si/organic heterojunction solar cells with SnO2 insertion layer 14.1% efficiency hybrid planar-Si/organic heterojunction solar cells with SnO2 insertion layer](/preview/png/11031047.png)
چکیده انگلیسی
Hybrid planar-Si/organic heterojunction solar cells have gained considerable interest in the fabrication of cost-effective and high-efficiency devices. However, most of high power conversion efficiency (PCE) performances have been obtained with particular structures, front surface texture or rear surface field layer. In this paper, we provide a simple method without complex structures, and demonstrate the superiority and the mechanism of using stannic oxide (SnO2) as an insertion layer. The SnO2 insertion layer takes the place of the Schottky barrier, which reduces barrier height of rear Si to enhance charge transfer. And the effect of the insertion layer reduces contact resistance and enhances contact quality of rear Si side. Meanwhile, it has been indicated that the Si-O-Sn bonds were formed by SnO2 and Si dangling bond (Si-), which have a passivation effect on the Si surface to effectively suppress the recombination losses. Furthermore, simulations using density functional theory (DFT) confirm that the electrostatic potential can improve electronic transmission from Si to Sn between Si-O-Sn bonds. Finally, for the hybrid planar-Si/PEDOT:PSS heterojunction solar cells without any special structures, the highest PCE of 14.1% was achieved, up 10.8% compared with that without SnO2 insertion layer. These findings provide an effective way of improving Si/metal contact via a simple, room temperature process for other photovoltaic devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 174, 1 November 2018, Pages 549-555
Journal: Solar Energy - Volume 174, 1 November 2018, Pages 549-555
نویسندگان
Lei Chen, Zhongliang Gao, Yupeng Zheng, Mengqi Cui, Hejin Yan, Dong Wei, Shangyi Dou, Jun Ji, Endong Jia, Na Sang, Kunhao Liu, Xunlei Ding, Yingfeng Li, Meicheng Li,