Sumit Sachdeva

Sumit

Van der Maasweg 9, 2629 HZ Delft 
Tel: *31 (0)15 2781128

S.Sachdeva@tudelft.nl 



Gas Sensing by Metal Organic Framework based CMOS platforms 

Metal  Organic Frameworks (MOFs) are highly porous crystalline coordination materials. These materials have shown great potential for applications in wide range. One of the potential application could be utilizing of MOFs for gas capture and sensing[1].  Highly porous nature of MOFs and the ability to tune the local environment inside these materials can be exploited to adsorb different gases selectively.

The main objective of this project focuses on utilization of MOFs on Complementary Metal Oxide Semiconductor (CMOS) substrates for gas detection purposes. The research focuses on utilizing electrochemical preparation of MOFs[2-5] using CMOS substrates (and other model surfaces) as an electrode. Different MOF topologies and functionalization methods are being explored in order to tune the adsorptive properties of the selective layer. 

Further research will be based on developing insights in molecular interaction between MOF as selector layer and the gas analytes to enhance selectivity, sensitivity and reversibility and on transforming this interaction into detectable signals using CMOS as transducer layer.

References

  1. Achmann, S., et al., Metal-Organic Frameworks for Sensing Applications in the Gas Phase. Sensors, 2009. 9(3): p. 1574-1589.
  2. Van Assche, T.R.C., et al., Electrochemical synthesis of thin HKUST-1 layers on copper mesh. Microporous and Mesoporous Materials, 2012. 158(0): p. 209-213.
  3. Joaristi, A.M., et al., Electrochemical Synthesis of Some Archetypical Zn2+, Cu2+, and Al3+ Metal Organic Frameworks. Crystal Growth & Design, 2012. 12(7): p. 3489-3498.
  4. Ameloot, R., et al., Patterned Growth of Metal-Organic Framework Coatings by Electrochemical Synthesis. Chemistry of Materials, 2009. 21(13): p. 2580-2582.
  5. Muller; Ulrich; (Neustadt, D.P.H.N., DE) ; Hesse; Michael; (Worms, DE) ; Schubert; Markus; (Ludwigshafen, DE) ; Wessel; Helge; (Mannheim, DE) ; Huff; Jurgen; (Ludwigshafen, DE) ; Guzmann; Marcus; (Muhlhausen, DE), Method for Electrochemical Production of a Crystalline Porous Metal Organic Skeleton Material BASF Aktiengesellschaft.