Fig. 1. Precision three-axis motion laser processing platform

Fig. 2. Influence of different processing parameters on ablative micro grooves

Fig. 3. Microstructure array on copper surface after laser processing

Fig. 4. Copper molds and PDMS molds

Fig. 5. Spectral of cashew shell oil black paint

Fig. 6. Physical image of ultrablack surface

Fig. 7. Ultrablack surface spectrogram

Fig. 8. Spectra of ultrablack surfaces at different angles

Fig. 9. Transmittance spectra in solar spectral band and reflectance spectra in infrared band of ITO transparent glasses with different resistance values

Fig. 10. ITO transparent glass and ultrablack surface spectra in visible and infrared bands

Fig. 11. Outdoor experimental setup

Fig. 12. ITO glass outdoor temperature test results

Fig. 13. Spectra of ITO-PET and ultrablack surface spectra in visible and infrared bands

Fig. 14. ITO-PET outdoor temperature test results