High efficiency planar Si/organic heterojunction hybrid solar cells

被引：113

作者：

He, Lining ^{[1
,2
,3
]}

Jiang, Changyun ^{[2
]}

Wang, Hao ^{[1
,3
]}

Lai, Donny ^{[1
,3
]}

Rusli ^{[1
,3
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Nanofabricat Ctr, Singapore 639798, Singapore

[2] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore

[3] CINTRA UMI CNRS NTU THALES 3288, Singapore 637553, Singapore

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 07期

关键词：

PHOTOELECTROCHEMICAL CELLS; SI(111);

D O I：

10.1063/1.3684872

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present an efficient hybrid solar cell based on poly (3,4-ethylene-dioxythiophene): polystyrenesulfonate and planar Si with (100) and (111) orientations. The effect of Si surface native oxide on cell performance is studied. Compared to cell with hydrogen-terminated Si surface, the cell with oxygen-terminated Si surface reveals a 530-fold increase in power conversion efficiency (PCE) from 0.02% to 10.6%. The formation of SiOx-Si bonds poses a net positive surface dipole which leads to a favorable band alignment for charge separation. However, thicker oxide degrades cell performance due to higher series resistance. This study demonstrates the highest PCE reported to-date in this field. (C) 2012 American Institute of Physics. [doi:10.1063/1.3684872]

引用

页数：3

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