Photoinduced charge carriers at surfaces and interfaces of poly[2−methoxy−5−(2′−ethyl−hexyloxy)−1,4−phenylenevinylene]with Au and GaAs

2001 ◽  
Vol 64 (3) ◽  
Author(s):  
Jihua Yang ◽  
Ilan Shalish ◽  
Yoram Shapira
Keyword(s):  
Charge Carriers ◽  
Surfaces And Interfaces ◽  
Photoinduced Charge

scholarly journals Photoinduced charge carriers in conjugated polymer–fullerene composites studied with light-induced electron-spin resonance

1999 ◽  
Vol 59 (12) ◽  
pp. 8019-8025 ◽  
Author(s):  
V. Dyakonov ◽  
G. Zoriniants ◽  
M. Scharber ◽  
C. J. Brabec ◽  
R. A. J. Janssen ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Conjugated Polymer ◽  
Charge Carriers ◽  
Spin Resonance ◽  
Photoinduced Charge

Wet-Chemical Conditioning of H-Terminated Silicon Solar Cell Substrates Investigated by Surface Photovoltage Measurements

2012 ◽  
Vol 195 ◽  
pp. 301-304 ◽  
Author(s):  
Heike Angermann ◽  
U. Stürzebecher ◽  
J. Kegel ◽  
C. Gottschalk ◽  
K. Wolke ◽  
...  
Keyword(s):  
Solar Cell ◽  
Silicon Solar Cell ◽  
Energy Conversion Efficiency ◽  
Charge Carriers ◽  
Surface Charges ◽  
Surfaces And Interfaces ◽  
Wet Chemical ◽  
Substrate Surfaces ◽  
Non Destructive

For further enhancement of solar energy conversion efficiency the passivation of silicon (Si) substrate surfaces and interfaces of Si-based solar cell devices is a decisive precondition to reduce recombination losses of photogenerated charge carriers. These losses are mainly controlled by surface charges, the density and the character of rechargeable interface states (Dit) [], which are induced by defects localised in a small interlayer extending over only few Å. Therefore, the application of fast non-destructive methods for characterization of the electronic interface properties directly during the technological process has received an increasing interest in recent years.

scholarly journals Synthesis and enhanced photocatalytic performance of 0D/2D CuO/tourmaline composite photocatalysts

2020 ◽  
Vol 11 ◽  
pp. 407-416 ◽  
Author(s):  
Changqiang Yu ◽  
Min Wen ◽  
Zhen Tong ◽  
Shuhua Li ◽  
Yanhong Yin ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Organic Contaminants ◽  
Hydrothermal Process ◽  
Charge Carriers ◽  
Molecular Vibration ◽  
Surface Element ◽  
Composite Photocatalysts ◽  
Excellent Photocatalytic Activity ◽  
Photoinduced Charge ◽  
Facile Hydrothermal Process

Photocatalysis is considered to be a green and promising technology for transforming organic contaminants into nontoxic products. In this work, a CuO/tourmaline composite with zero-dimensional/two-dimensional (0D/2D) CuO architecture was successfully obtained via a facile hydrothermal process, and its photocatalytic activity was evaluated by the degradation of methylene blue (MB). Surface element valence state and molecular vibration characterization revealed that CuO chemically interacted with tourmaline via Si–O–Cu bonds. The specific surface area of the CuO/tourmaline composite (23.60 m2 g−1) was larger than that of the pristine CuO sample (3.41 m2 g−1). The CuO/tourmaline composite exhibited excellent photocatalytic activity for the degradation of MB, which was ascribed to the increase in the quantity of the adsorption-photoreactive sites and the efficient utilization of the photoinduced charge carriers. This study provides a facile strategy for the construction of 0D/2D CuO structures and the design of tourmaline-based functional composite photocatalysts for the treatment of organic contaminants in water.

scholarly journals A polar mineral tourmaline enables synthesis of 0D/2D CuO photocatalyst with enhanced photocatalytic activity

2020 ◽  
Author(s):  
Changqiang Yu ◽  
Min Wen ◽  
Zhen Tong ◽  
Shuhua Li ◽  
Yanhong Yin ◽  
...  
Keyword(s):  
Organic Contaminants ◽  
Superoxide Radical ◽  
Aqueous Suspension ◽  
Hydrothermal Process ◽  
Charge Carriers ◽  
Two Dimensional ◽  
Efficient Utilization ◽  
Composite Photocatalysts ◽  
Photoinduced Charge ◽  
Facile Hydrothermal Process

    Photocatalysis is considered to be a green and promising technology for transforming organic contaminants into nontoxic products. In this work, the CuO/tourmaline composite with zero-dimensional/two-dimensional (0D/2D) CuO architecture was obtained via a facile hydrothermal process. CuO chemically interacted with tourmaline via Si-O-Cu bond. The specific surface area of the CuO/tourmaline composite (23.60 m2 g-1) was larger than that of pristine CuO (3.41 m2 g-1). Three predominant reactive species of superoxide radical (O2 •-), hydroxyl radical (•OH), and h+ were generated by the CuO/tourmaline composite aqueous suspension system under light irradiation. The CuO/tourmaline composite exhibited excellent photocatalytic capacity for the decomposition of organic pollutants, which was ascribed to the increase in the quantity of adsorption-photoreactive sites and the efficient utilization of photoinduced charge carriers benefited from tourmaline. This study offered a facile strategy for the construction of 0D/2D CuO structure and the design of tourmaline-based functional composite photocatalysts for the treatment of organic contaminants in waster.

Improved photoinduced charge carriers separation in organic-inorganic hybrid photovoltaic devices

2010 ◽  
Vol 97 (3) ◽  
pp. 033309 ◽  
Author(s):  
Yana Vaynzof ◽  
Dinesh Kabra ◽  
Lihong Zhao ◽  
Peter K. H. Ho ◽  
Andrew T.-S. Wee ◽  
...  
Keyword(s):  
Charge Carriers ◽  
Photovoltaic Devices ◽  
Inorganic Hybrid ◽  
Photoinduced Charge

scholarly journals Simultaneous ultrafast probing of intramolecular vibrations and photoinduced charge carriers in rubrene using broadband time-domain THz spectroscopy

2007 ◽  
Vol 75 (19) ◽  
Author(s):  
Mattijs Koeberg ◽  
Euan Hendry ◽  
Juleon M. Schins ◽  
Hendrik A. van Laarhoven ◽  
Cees F. J. Flipse ◽  
...  
Keyword(s):  
Time Domain ◽  
Charge Carriers ◽  
Thz Spectroscopy ◽  
Intramolecular Vibrations ◽  
Photoinduced Charge

Modulation and Improvement on Separation of Photoinduced Charge Carriers in CdS−Metal Nanoheterostructures

2009 ◽  
Vol 113 (40) ◽  
pp. 17342-17346 ◽  
Author(s):  
Wei-Yun Cheng ◽  
Wei-Ta Chen ◽  
Yung-Jung Hsu ◽  
Shih-Yuan Lu
Keyword(s):  
Charge Carriers ◽  
Photoinduced Charge
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