articleCarbonJan 5, 2026Closed access

Optical band gap determination of carbon dots: A critical comparison of tangent and Tauc plot methods benchmarked with metal oxides

FZFanhao ZengCJChunyu JiZXZhuang XiangLGLipeng GaoWXWenjun Xu

Yunnan University · Kunming Institute of Precious Metals

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4
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6

Topics & keywords

Topics
Keywords
  • Band gap
  • Extrapolation
  • Tangent
  • Dispersion (optics)
  • Semiconductor
  • Direct and indirect band gaps
  • Impurity
  • Analytical Chemistry (journal)
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