performance so far), these chiral molecules should also possess very high
racemization barriers. Because of the fundamental challenge that represents their
molecular design and their high potential in terms of application in the context of
display devices, there is no doubt that numerous future research works will be
dedicated to the discovery of novel CPTADF molecules.
References
1. Schadt M (1997) Liquid crystal materials and liquid crystal displays. Annu Rev Mater Sci
27:305–379
2. Singh R, Unni KNN, Solanki A (2012) Improving the contrast ratio of OLED displays: an
analysis of various techniques. Opt Mater 34(4):716–723
3. Han J, Guo S, Lu H, Liu S, Zhao Q, Huang W (2018) Recent progress on circularly polarized
luminescent materials for organic optoelectronic devices. Adv Opt Mater 6(17):1800538
4. Zinna F, Giovanella U, Di Bari L (2015) Highly circularly polarized electroluminescence from a
chiral europium complex. Adv Mater 27(10):1791
5. Zinna F, Pasini M, Galeotti F, Botta C, Di Bari L, Giovanella U (2017) Design of lanthanide‐
based oleds with remarkable circularly polarized electroluminescence. Adv Funct Mater 27
(1):1603719
6. Peeters E, Christiaans MPT, Janssen RAJ, Schoo HFM, Dekkers HPJM, Meijer EW (1997)
Circularly polarized electroluminescence from a polymer light-emitting diode. J Am Chem Soc
119(41):9909–9910
7. Geng Y, Trajkovska A, Culligan SW, Ou JJ, Chen HMP, Katsis D, Chen SH (2003) origin of
strong chiroptical activities in films of nonafluorenes with a varying extent of pendant chirality.
J Am Chem Soc 125(46):14032–14038
8. Lee DM, Song JW, Lee YJ, Yu CJ, Kim JH (2017) Control of circularly polarized electroluminescence in induced twist structure of conjugate polymer. Adv Mater 29(29):1700907
9. Brandt JR, Wang X, Yang Y, Campbell AJ, Fuchter MJ (2016) Circularly polarized phosphorescent electroluminescence with a high dissymmetry factor from PHOLEDs based on a
Platinahelicene. J Am Chem Soc 138(31):9743–9746
10. Yang Z, Mao Z, Xie Z, Zhang Y, Liu S, Zhao J, Xu J, Chi Z, Aldred MP (2017) Recent
advances in organic thermally activated delayed fluorescence materials. Chem Soc Rev
46:915–1016
11. Wong MY, Zysman-Colman EC (2017) Purely organic thermally activated delayed fluorescence materials for organic light-emitting diodes. Adv Mater 29(22):1605444
12. Czerwieniec R, Leitl MJ, Homeier HHH, Yersin H (2016) Cu(I) complexes – Thermally
activated delayed fluorescence. Photophysical approach and material design. Coord Chem
Rev 325:2–28
13. Imagawa T, Hirata S, Totani K, Watanabe T, Vacha M (2015) Thermally activated delayed
fluorescence with circularly polarized luminescence characteristics. Chem Commun
51:13268–13271
14. Feuillastre S, Pauton M, Gao L, Desmarchelier A, Riives AJ, Prim D, Tondelier D, Geffroy B,
Muller G, Clavier G, Pieters G (2016) Design and synthesis of new circularly polarized
thermally activated delayed fluorescence emitters. J Am Chem Soc 138(12):3990–3993
15. Sanchez-Carnerero EM, Moreno F, Maroto BL, Agarrabeitia AR, Ortiz MJ, Vo B, Muller G, de
La Moya S (2014) Circularly polarized luminescence by visible-light absorption in a chiral
O-BODIPY dye: unprecedented design of CPL organic molecules from achiral chromophores.
J Am Chem Soc 136(9):3346–3349
16. Uoyama H, Goushi K, Shizu K, Nomura H, Adachi C (2012) Highly efficient organic lightemitting diodes from delayed fluorescence. Nature 492:234–238
13 Design of Circularly Polarized Thermally Activated Delayed Fluorescence Emitters
307
racemization barriers. Because of the fundamental challenge that represents their
molecular design and their high potential in terms of application in the context of
display devices, there is no doubt that numerous future research works will be
dedicated to the discovery of novel CPTADF molecules.
References
1. Schadt M (1997) Liquid crystal materials and liquid crystal displays. Annu Rev Mater Sci
27:305–379
2. Singh R, Unni KNN, Solanki A (2012) Improving the contrast ratio of OLED displays: an
analysis of various techniques. Opt Mater 34(4):716–723
3. Han J, Guo S, Lu H, Liu S, Zhao Q, Huang W (2018) Recent progress on circularly polarized
luminescent materials for organic optoelectronic devices. Adv Opt Mater 6(17):1800538
4. Zinna F, Giovanella U, Di Bari L (2015) Highly circularly polarized electroluminescence from a
chiral europium complex. Adv Mater 27(10):1791
5. Zinna F, Pasini M, Galeotti F, Botta C, Di Bari L, Giovanella U (2017) Design of lanthanide‐
based oleds with remarkable circularly polarized electroluminescence. Adv Funct Mater 27
(1):1603719
6. Peeters E, Christiaans MPT, Janssen RAJ, Schoo HFM, Dekkers HPJM, Meijer EW (1997)
Circularly polarized electroluminescence from a polymer light-emitting diode. J Am Chem Soc
119(41):9909–9910
7. Geng Y, Trajkovska A, Culligan SW, Ou JJ, Chen HMP, Katsis D, Chen SH (2003) origin of
strong chiroptical activities in films of nonafluorenes with a varying extent of pendant chirality.
J Am Chem Soc 125(46):14032–14038
8. Lee DM, Song JW, Lee YJ, Yu CJ, Kim JH (2017) Control of circularly polarized electroluminescence in induced twist structure of conjugate polymer. Adv Mater 29(29):1700907
9. Brandt JR, Wang X, Yang Y, Campbell AJ, Fuchter MJ (2016) Circularly polarized phosphorescent electroluminescence with a high dissymmetry factor from PHOLEDs based on a
Platinahelicene. J Am Chem Soc 138(31):9743–9746
10. Yang Z, Mao Z, Xie Z, Zhang Y, Liu S, Zhao J, Xu J, Chi Z, Aldred MP (2017) Recent
advances in organic thermally activated delayed fluorescence materials. Chem Soc Rev
46:915–1016
11. Wong MY, Zysman-Colman EC (2017) Purely organic thermally activated delayed fluorescence materials for organic light-emitting diodes. Adv Mater 29(22):1605444
12. Czerwieniec R, Leitl MJ, Homeier HHH, Yersin H (2016) Cu(I) complexes – Thermally
activated delayed fluorescence. Photophysical approach and material design. Coord Chem
Rev 325:2–28
13. Imagawa T, Hirata S, Totani K, Watanabe T, Vacha M (2015) Thermally activated delayed
fluorescence with circularly polarized luminescence characteristics. Chem Commun
51:13268–13271
14. Feuillastre S, Pauton M, Gao L, Desmarchelier A, Riives AJ, Prim D, Tondelier D, Geffroy B,
Muller G, Clavier G, Pieters G (2016) Design and synthesis of new circularly polarized
thermally activated delayed fluorescence emitters. J Am Chem Soc 138(12):3990–3993
15. Sanchez-Carnerero EM, Moreno F, Maroto BL, Agarrabeitia AR, Ortiz MJ, Vo B, Muller G, de
La Moya S (2014) Circularly polarized luminescence by visible-light absorption in a chiral
O-BODIPY dye: unprecedented design of CPL organic molecules from achiral chromophores.
J Am Chem Soc 136(9):3346–3349
16. Uoyama H, Goushi K, Shizu K, Nomura H, Adachi C (2012) Highly efficient organic lightemitting diodes from delayed fluorescence. Nature 492:234–238
13 Design of Circularly Polarized Thermally Activated Delayed Fluorescence Emitters
307