Transparent organic upconversion devices for near-infrared sensing

Shun Wei Liu, Chih Chien Lee, Chih Hsien Yuan, Wei Cheng Su, Shao Yu Lin, Wen Chang Chang, Bo Yao Huang, Chun Feng Lin, Ya Ze Lee, Tsung Hao Su, Kuan Ting Chen

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)


(Figure Presented). Transparent organic upconversion devices are shown in a night-vision demonstration of a real object under near-infrared (NIR) illumination in the dark. An extraordinarily high current gain - reflecting the on-off switching effect - greater than 15 000 at a driving voltage of 3 V is demonstrated, indicating the high sensitivity to NIR light and potential of using the proposed upconverter in practical applications. A maximum luminance exceeding 1500 cd m-2 at 7 V is achieved. Unlike previous studies, where 2D aperture projection is reported, the current study shows 3D images of real objects under NIR illumination in the dark.

Original languageEnglish
Pages (from-to)1217-1222
Number of pages6
JournalAdvanced Materials
Issue number7
Publication statusPublished - Feb 18 2015
Externally publishedYes


  • Near-infrared
  • Organic electronics
  • Sensing
  • Transparent materials
  • Upconversion

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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