Fig. 1. Schematic illustration of aqueous synthesis of one-dimensional perovskites

Fig. 2. Characterizations of one-dimensional double chain TMEDAPb₂I₆ perovskites

Fig. 3. PL spectra excited by 405 nm（black line）and 473 nm（red line）laser and absorption spectrum（blue line）of one-dimensional double chain TMEDAPb₂I₆ perovskites at 78 K

Fig. 4. The excitation powder dependent emission intensity of one-dimensional double chain TMEDAPb₂I₆ perovskites

Fig. 5. PL spectra of C₅H₁₄N₂ organic chain and perovskites synthesized by using different amount of MA/R-NH₂ solutions

Fig. 6. PL spectra under different polarization angles at 78 K and PL intensity versus polarization angles

Fig. 7. PL intensity versus polarization angle from 110 K to 260 K with a 30 K interval

Fig. 8. Temperature dependent linear dichroic ratio from 78 K to 260 K（30 K interval）

Fig. 9. Reflection spectra and extracted refringence，extinction coefficient，birefringence and dichroism