Pulsed electrically detected magnetic resonance for thin film silicon and organic solar cells.

Pulsed electrically detected magnetic resonance for thin film silicon and organic solar cells.
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薄膜硅和有机太阳能电池的脉冲电检测磁共振。

DOI:
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发表时间:
2012
期刊:
Physical Chemistry, Chemical Physics - PCCP
影响因子:
--
通讯作者:
K. Lips
K. Lips
中科院分区:
--
文献类型:
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作者:
A. Schnegg;J. Behrends;M. Fehr;K. Lips

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在基于非晶薄膜硅或有机半导体的薄膜太阳能电池中,结构无序导致局部状态,从而引起器件限制电荷复合和捕获。这两个过程都经常涉及顺磁态并变得依赖于自旋。在当前的观点文章中,我们报告了先进的脉冲电检测磁共振(pEDMR)实验,用于研究完全加工的薄膜太阳能电池中自旋相关的传输过程。我们回顾了 pEDMR 光谱学的最新进展,并展示了其在 HZB 最近研究的基于微晶硅和有机 MEH-PPV:PCBM 混合物的两种不同的最先进薄膜太阳能电池概念上的能力。受益于新型 pEDMR 检测方案的增强功能,我们能够确定自旋相关的传输过程,并在微观上识别顺磁态及其在太阳能电池电荷收集机制中的作用。
In thin film solar cells based on non-crystalline thin film silicon or organic semiconductors structural disorder leads to localized states that induce device limiting charge recombination and trapping. Both processes frequently involve paramagnetic states and become spin-dependent. In the present perspectives article we report on advanced pulsed electrically detected magnetic resonance (pEDMR) experiments for the study of spin dependent transport processes in fully processed thin film solar cells. We reflect on recent advances in pEDMR spectroscopy and demonstrate its capabilities on two different state of the art thin film solar cell concepts based on microcrystalline silicon and organic MEH-PPV:PCBM blends, recently studied at HZB. Benefiting from the increased capabilities of novel pEDMR detection schemes we were able to ascertain spin-dependent transport processes and microscopically identify paramagnetic states and their role in the charge collection mechanism of solar cells.
硅中的长寿命自旋相干性具有电自旋陷阱读数。
DOI: 10.1103/physrevlett.101.207602
发表时间: 2008
影响因子: 8.6
作者:
Morley GW
通讯作者: Morley GW
DOI: 10.1063/1.3675449
发表时间: 2011-10
影响因子: 3.2
作者:
V. Lang;J. Murphy;R. Falster;J. Morton
通讯作者: V. Lang;J. Murphy;R. Falster;J. Morton
DOI: 10.1103/physrevlett.105.176601
发表时间: 2010-10-19
影响因子: 8.6
作者:
Behrends, J.;Schnegg, A.;Keeble, D. J.
通讯作者: Keeble, D. J.