Toward ultrafast soft x-ray spectroscopy of organic photovoltaic devices

被引：7
作者：
Garratt, Douglas [1 ,2 ]
Matthews, Mary [2 ]
Marangos, Jon [2 ]
机构：
[1] SLAC Natl Accelerator Lab, Stanford PULSE Inst, Stanford, CA 94025 USA
[2] Imperial Coll London, Phys Dept, London, England
来源：
STRUCTURAL DYNAMICS-US | 2024年 / 11卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
FREE-ELECTRON LASER; ABSORPTION FINE-STRUCTURE; TRANSIENT ABSORPTION; EXCITED-STATE; PHOTOELECTRON-SPECTROSCOPY; STRUCTURAL DYNAMICS; CHARGE SEPARATION; PULSES; ENERGY; COMPRESSION;
D O I：
10.1063/4.0000214
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Novel ultrafast x-ray sources based on high harmonic generation and at x-ray free electron lasers are opening up new opportunities to resolve complex ultrafast processes in condensed phase systems with exceptional temporal resolution and atomic site specificity. In this perspective, we present techniques for resolving charge localization, transfer, and separation processes in organic semiconductors and organic photovoltaic devices with time-resolved soft x-ray spectroscopy. We review recent results in ultrafast soft x-ray spectroscopy of these systems and discuss routes to overcome the technical challenges in performing time-resolved x-ray experiments on photosensitive materials with poor thermal conductivity and low pump intensity thresholds for nonlinear effects.
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页数：16
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