Figure 1 | Working principle of the colour perception device and an image of the flexible devices. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 1 | Working principle of the colour perception device and an image of the flexible devices.

Caption

a) Spectral diagram. b) Colour perception using an optoelectronic device with bandgap-gradient semiconductors, in which one output signal is determined only by the total photon flux, and the other is dependent on both the total photon flux and average photon energy. c) An image of the flexible devices under UV illumination. d) Scheme of human visual colour perception in terms of hue. e) Correlation between hue and average photon energy.

Credit

by Mei-Na Zhang, Xiaohan Wu, Antoine Riaud, Xiao-Lin Wang, Fengxian Xie, Wen-Jun Liu, Yongfeng Mei, David Wei Zhang and Shi-Jin Ding

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