Ralf Koehn

Center for Free-Electron Laser Science — Germany

Engineering · Physical Sciences

9h-index286citations13works0.02yr avg
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Research Topics

Gas Sensing Nanomaterials and Sensors(10), Analytical Chemistry and Sensors(7), Advanced Chemical Sensor Technologies(5), ZnO doping and properties(4), 2D Materials and Applications(2)

Publications13 total

A novel RGO-MoS2-CdS nanocomposite film for application in the ultrasensitive NO2 detection
Journal of Alloys and Compounds·2018· 53 cited
室温で優れた性能をもつ揮発性有機化合物センサのためのGQDs TiO_2ヘテロ接合ベース薄膜【Powered by NICT】
Materials Letters·2017
A tunable volatile organic compound sensor by using PtO<sub>x</sub>/GQDs/TiO<sub>2</sub> nanocomposite thin films at room temperature under visible-light activation
RSC Advances·2017· 13 citedOpen Access
Ultrasensitive room-temperature ethanol detection based on Au functionalized nanoporous SnO<sub>2</sub>/C<sub>60</sub>/SnO<sub>2</sub> composites
RSC Advances·2017· 16 citedOpen Access
GQDs-TiO2 heterojunction based thin films for volatile organic compounds sensor with excellent performance at room temperature
Materials Letters·2016· 23 cited
Reversible P–N transition sensing behavior obtained by applying GQDs/Pt decorated SnO<sub>2</sub> thin films at room temperature
RSC Advances·2016· 7 cited
Regulable switching from p- to n-type behavior of ordered nanoporous Pt-SnO<sub>2</sub> thin films with enhanced room temperature toluene sensing performance
RSC Advances·2016· 21 cited
Generation of highly ordered nanoporous Sb–SnO<sub>2</sub> thin films with enhanced ethanol sensing performance at low temperature
New Journal of Chemistry·2016· 20 cited
Fabrication of anatase/rutile hierarchical nanospheres with enhanced n/p type gas sensing performance at room temperature
RSC Advances·2016· 4 cited
Highly crystalline and ordered nanoporous SnO<sub>2</sub> thin films with enhanced acetone sensing property at room temperature
Journal of Materials Chemistry C·2015· 59 cited
Low temperature crystallization of transparent, highly ordered nanoporous SnO2 thin films: application to room-temperature hydrogen sensing
Nanoscale·2011· 19 cited
Sorption behavior of an oriented surface-grown MOF-film studied by in situ X-ray diffraction
Journal of Materials Chemistry·2010· 49 cited
ChemInform Abstract: Fe<sub>2</sub>O<sub>3</sub> Nanoparticles within Mesoporous MCM‐48 Silica: In situ Formation and Characterization.
ChemInform·2000· 2 cited

Frequent Co-authors

Shaofeng Shao(11), Hongyan Wu(6), Fan Jiang(5), Tao Wu(4), Shimin Wang(3), Wei-Feng Rao(3), Yunyun Chen(3), Shenbei Huang(2), Wei Wang(2), Yating Lei(2), Yunfei Wang(2), Qiling Hong(1), Leisheng Che(1), Min Lai(1), Camilla Scherb(1), Thomas Bein(1), Kai Zhou(1), Xinmin Qiu(1), Dafang He(1), Naijia Guan(1)