DataVXACS Energy LettersPaper
journal article·2018-10-12

Reduced Energy Offsets and Low Energy Losses Lead to Efficient (∼10% at 1 sun) Ternary Organic Solar Cells

Maria Privado, Cristina Rodríguez Seco, Rahul Singhal, Pilar de la Cruz, Fernando Langa, Ganesh D. Sharma, Emilio Palomares

ACS Energy Letters· Volume 3· Issue 10
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Source abstract

Abstract

Two organic semiconductor molecules, CS01 and MPU3, an electron donor and electron acceptor, respectively, are described for use in organic bulk heterojunction solar cells. The highest occupied molecular orbital (HOMO) energy offset (ΔΕHOMO) between these two molecules is as low as 0.29 eV. Moreover, the lowest unoccupied molecular orbital (LUMO) energy offset (ΔΕLUMO) is as low as 0.14 eV. Nonetheless, the interfacial charge-transfer process upon light excitation is extremely efficient, and solar cells with efficiencies, under normal conditions, as high as 7.81% have been fabricated. Furthermore, the incorporation of PC71BM (another electron acceptor molecule) to fabricate a triple organic heterojunction led to efficiencies close to 10% at 1 sun irradiation conditions. The improvement is due to a better panchromatic harvesting of the sunlight and a better charge balance, which allows the rapid extraction of carriers before they can recombine.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Perovskite Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Universidad de Castilla La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, E-45071 Toledo, Spain

Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology (ICIQ-BIST), Avda. Països Catalans, 16, E-43007 Tarragona, Spain

Departament d’Enginyeria Electrònica, Elèctrica I Automàtica, URV, Avda. Països Catalans, 26, E-43007 Tarragona, Spain

Department of Physics, Malviya National Institute of Technology, JLN Marg, Jaipur 302017, Rajasthan, India

Department of Physics, The LMN Institute of Information Technology, Jamdoli, 302031 Jaipur, Rajasthan, India

ICREA, Passeig Lluis Companys, 23, E-08010 Barcelona, Spain

Funding

Ministerio de Econom?a y Competitividad · Instituci? Catalana de Recerca i Estudis Avan?ats · Ministerio de Ciencia, Innovaci?n y Universidades · Instituto de Ciencia y Tecnolog?a de Barcelona · Agencia Estatal de Investigaci?n

References (56)

Show source-provided references
1. 10.1002/adma.20130437310.1002/adma.201304373 ↗
2. 10.1038/nphoton.2012.1110.1038/nphoton.2012.11 ↗
3. 10.1021/acs.chemrev.6b0017610.1021/acs.chemrev.6b00176 ↗
4. 10.1021/acs.chemrev.5b0009810.1021/acs.chemrev.5b00098 ↗
5. 10.1021/acs.chemmater.6b0280210.1021/acs.chemmater.6b02802 ↗
6. 10.1021/ar200244610.1021/ar2002446 ↗
7. 10.1038/nenergy.2015.2710.1038/nenergy.2015.27 ↗
8. 10.1002/adma.20160672910.1002/adma.201606729 ↗
9. 10.1002/aenm.20170094410.1002/aenm.201700944 ↗
10. 10.1021/jacs.7b0149310.1021/jacs.7b01493 ↗
11. 10.1002/adma.20170715010.1002/adma.201707150 ↗
12. 10.1021/jacs.7b0267710.1021/jacs.7b02677 ↗
13. 10.1002/adma.20180086810.1002/adma.201800868 ↗
14. 10.1002/aenm.20120042610.1002/aenm.201200426 ↗
15. 10.1002/adfm.20090009010.1002/adfm.200900090 ↗
16. 10.1002/cssc.20120060910.1002/cssc.201200609 ↗
17. 10.1038/nphoton.2015.12810.1038/nphoton.2015.128 ↗
18. 10.1002/adma.20170427110.1002/adma.201704271 ↗
19. 10.1016/j.joule.2018.02.01010.1016/j.joule.2018.02.010 ↗
20. 10.1002/aenm.20160221510.1002/aenm.201602215 ↗
21. 10.1007/s40843-016-5069-610.1007/s40843-016-5069-6 ↗
22. 10.1002/adma.20170657110.1002/adma.201706571 ↗
23. 10.1016/j.scib.2017.11.00310.1016/j.scib.2017.11.003 ↗
24. 10.1021/ja403318y10.1021/ja403318y ↗
25. 10.1021/jacs.6b1161210.1021/jacs.6b11612 ↗
26. 10.1021/jacs.5b0030510.1021/jacs.5b00305 ↗
27. 10.1038/ncomms1374010.1038/ncomms13740 ↗
28. 10.1038/s41566-018-0104-910.1038/s41566-018-0104-9 ↗
29. 10.1021/acs.chemrev.7b0053510.1021/acs.chemrev.7b00535 ↗
30. 10.1038/nmat506310.1038/nmat5063 ↗
31. 10.1039/C7CS00892A10.1039/C7CS00892A ↗
32. 10.1002/smll.20170112010.1002/smll.201701120 ↗
33. 10.1002/marc.20170055510.1002/marc.201700555 ↗
34. 10.1021/acs.accounts.5b0036310.1021/acs.accounts.5b00363 ↗
35. 10.1021/acs.chemmater.7b0253610.1021/acs.chemmater.7b02536 ↗
36. 10.1021/jacs.6b1282610.1021/jacs.6b12826 ↗
37. 10.1002/adma.20170636110.1002/adma.201706361 ↗
38. 10.1039/C7EE00805H10.1039/C7EE00805H ↗
39. 10.1021/acs.chemmater.8b0028710.1021/acs.chemmater.8b00287 ↗
40. 10.1021/acsenergylett.7b0060810.1021/acsenergylett.7b00608 ↗
41. 10.1021/acsenergylett.8b0056310.1021/acsenergylett.8b00563 ↗
42. 10.1021/acsenergylett.6b0016210.1021/acsenergylett.6b00162 ↗
43. 10.1021/acs.jpcc.8b0084010.1021/acs.jpcc.8b00840 ↗
44. 10.1039/C8TA02633E10.1039/C8TA02633E ↗
45. 10.1039/C5MH00090D10.1039/C5MH00090D ↗
46. 10.1002/aenm.20160043010.1002/aenm.201600430 ↗
47. 10.1038/ncomms1365110.1038/ncomms13651 ↗
48. 10.1002/adma.20160159510.1002/adma.201601595 ↗
49. 10.1021/jacs.6b0174410.1021/jacs.6b01744 ↗
50. 10.1016/j.nanoen.2017.07.04710.1016/j.nanoen.2017.07.047 ↗
51. 10.1002/adma.20150441710.1002/adma.201504417 ↗
52. 10.1002/adma.20150491410.1002/adma.201504914 ↗
53. 10.1038/nenergy.2016.8910.1038/nenergy.2016.89 ↗
54. 10.1021/ja513189710.1021/ja5131897 ↗
55. 10.1002/adma.20160257010.1002/adma.201602570 ↗
56. 10.1002/adma.20160521610.1002/adma.201605216 ↗