creating knowledge for future



High Quality


Scholarly Publishing
                CAREER NETWORK  
         
World's one of the largest Research
Career Network
Benefits
  •     Academic & Industry jobs
  •     Project funding
  •     Visiting faculty positions
  •     Visiting scientist positions
  •     Invited talks
  •     and more...  
   
Register FREE  
 
 
 
 
 
  Physics Express 2014, 4: 21
  Research Article
 
Microwave photoconductivity model of polycrystalline semiconductors on an example of Cu(In,Ga)Se2 films
  G. F. Novikov, K. V. Bocharov  
     
Institute of Problems of Chemical Physics, RAS, Chernogolovka, Moscow region, 142432, Russia
   
  Abstract  
  The dependence of photoconductivity on the mean sizes of coherent scattering regions (CSR) was studied using Time-resolved microwave photoconductivity (TRMC) technique in 36 GHz band in thin films of Cu(In,Ga)Se2, being used in photovoltaics. A model is proposed to describe the dependence of conductivity on the frequency and the electric field strength in polycrystalline semiconductors. The calculation results are in good agreement with the published data on Cu(In,Ga)Se2, demonstrating the increase in TRMC photoresponse with increase in CSR size. The model predicts a large value of the electron mobility of the order 104 cm2V-1s-1 inside the CSR interior.
     
  Keywords  
  Coherent scattering regions; Electron-hole recombination; Time-resolved microwave photoconductivity (TRMC); Polycrystalline; Cu(In,Ga)Se2; Thin-film solar cells  
     
   
   
   
   
     

  © 2016 Cognizure