Cooperative sensitization on silver bromoiodide (AgBr/I) grains emulsion by oxalate and sulfur-plus-gold

Wang Jing Ma, Xin Min Yang, Zhi Li, Yao Shi, Yuan Qing Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

After sulfur-plus-gold sensitization on silver bromoiodide (AgBr/I) microcrystal emulsions prepared by the emulsifying process in the double-jet apparatus controlled by a microcomputer, a certain amount of oxalate salt (1×10-1, 1×10-2, 1×10-3and 1×10-4mol/molAg) was respectively added at a specific time and pAg to a reactor to prepare a series of tabular silver bromoiodide (AgBr/I) microcrystal at whose surface oxalate ions and Ag2S or AuAgS were doped. The sensitometric results from these crystal emulsions showed: 1) that the sensitivities of oxalatedoped AgBr/I emulsion, relative to that of the undoped emulsion as the controlled one, were remarkably increased; 2) that a cooperative sensitization by oxalate dopant, sulfur-plus-gold was observed without any significant increase in fog level when 10-3-10-4 mol/molAg oxalate was doped: 3 that sensitivity gain (SG) was maximal, when 10-3mol/molAg oxalate (in 10-1-10-4 mol/molAg ) was doped at the surface of AgBr/I grains.

Original languageEnglish
Title of host publicationMechanical and Aerospace Engineering
Pages1387-1391
Number of pages5
DOIs
StatePublished - 2012
Externally publishedYes
Event2nd International Conference on Mechanical and Aerospace Engineering, ICMAE 2011 - Bangkok, Thailand
Duration: 29 Jul 201131 Jul 2011

Publication series

NameApplied Mechanics and Materials
Volume110-116
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2nd International Conference on Mechanical and Aerospace Engineering, ICMAE 2011
Country/TerritoryThailand
CityBangkok
Period29/07/1131/07/11

Keywords

  • Cooperative sensitization
  • Oxalate-doped
  • Silver halide
  • Sulfur-plus-gold sensitization;

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