ZnS/Zn(O,OH)S-Based Buffer Layer Deposition for Solar Cells

Raghu Bhattacharya (Inventor)

Research output: Patent


The invention provides CBD ZnS/Zn(O,OH)S and spray deposited ZnS/Zn(O,OH)S buffer layers prepared from a solution of zinc salt, thiourea and ammonium hydroxide dissolved in a non-aqueous/aqueous solvent mixture or in 100% non-aqueous solvent. Non-aqueous solvents useful in the invention include methanol, isopropanol and triethyl-amine. One-step deposition procedures are described for CIS, CIGSand other solar cell devices.
Original languageAmerican English
Patent number7,611,573 B2
StatePublished - 2009

NREL Publication Number

  • NREL/PT-5900-50476


  • ammonium hydroxide
  • solar cells
  • zinc salt


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