Ultrafast Spectroscopy with Photocurrent Detection: Watching Excitonic Optoelectronic Systems at Work

被引:93
作者
Bakulin, Artem A. [1 ]
Silva, Carlos [2 ,3 ]
Vella, Eleonora [2 ,3 ]
机构
[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[2] Univ Montreal, Dept Phys, CP 6128,Succursale Ctr Ville, Montreal, PQ H3C 3J7, Canada
[3] Univ Montreal, Regrp Quebecois Mat Pointe, CP 6128,Succursale Ctr Ville, Montreal, PQ H3C 3J7, Canada
基金
欧洲研究理事会;
关键词
ASSEMBLED PORPHYRIN DIMERS; CHARGE SEPARATION; ELECTRONIC SPECTROSCOPY; POLYMERIC SEMICONDUCTOR; QUANTUM COHERENCE; DYNAMICS; ENERGY; PHOTOGENERATION; MODULATION; RELAXATION;
D O I
10.1021/acs.jpclett.5b01955
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
While ultrafast spectroscopy with photocurrent detection was almost unknown before 2012, in the last 3 years, a number of research groups from different fields have independently developed ultrafast electric probe approaches and reported promising pilot studies. Here, we discuss these recent advances and provide our perspective on how photocurrent detection successfully overcomes many limitations of all-optical methods, which makes it a technique of choice when device photophysics is concerned. We also highlight compelling existing problems and research questions and suggest ways for further development, outlining the potential breakthroughs to be expected in the near future using photocurrent ultrafast optical probes.
引用
收藏
页码:250 / 258
页数:9
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