Large surface photovoltages observed at methyl-terminated silicon surfaces synthesised through a two-step chlorination-alkylation method

被引：15

作者：

Alderman, Nicholas ^{[1
,2
]}

Danos, Lefteris ^{[1
]}

Grossel, Martin C. ^{[2
]}

Markvart, Tom ^{[1
]}

机构：

[1] Univ Southampton, Fac Engn & Environm, Solar Energy Lab, Southampton SO17 1BJ, Hants, England

[2] Univ Southampton, Fac Nat & Environm Sci, Southampton SO17 1BJ, Hants, England

来源：

RSC ADVANCES | 2012年 / 2卷 / 20期

基金：

英国工程与自然科学研究理事会;

关键词：

ELECTRICAL PASSIVATION; ORGANIC MONOLAYERS; GRIGNARD-REAGENTS; SI(111); ALKENES; CHARGE; CELLS;

D O I：

10.1039/c2ra20465g

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Methylation of the silicon surface through a chlorination-alkylation method has been used to improve the electronic properties of silicon. Upon alkylation of the surface, an increase in the minority carrier recombination lifetime and the surface photovoltage is observed, in line with an increase in surface charge. A likely explanation of this unusually large band bending is charge accumulation during the removal of chlorine from the surface.

引用

页码：7669 / 7672

页数：4

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