- Title
- Dopant-free novel hole-transporting materials based on quinacridone dye for high-performance and humidity-stable mesoporous perovskite solar cells
- Creator
- Pham, Hong Duc; Jain, Sagar M.; Sonar, Prashant; Li, Meng; Manzhos, Sergei; Feron, Krishna; Pitchaimuthu, Sudhagar; Liu, Zhiyong; Motta, Nunzio; Wang, Hongxia; Durrant, James R.
- Relation
- Journal of Materials Chemistry A Vol. 7, Issue 10, p. 5315-5323
- Publisher Link
- http://dx.doi.org/10.1039/c8ta11361k
- Publisher
- Royal Society of Chemistry
- Resource Type
- journal article
- Date
- 2019
- Description
- This study reports three newly developed dopant-free hole-transporting materials (HTMs) for perovskite solar cells. The design is based on a quinacridone (QA) dye as the core with three different extended end-capping moieties, namely, acenaphthylene (ACE), triphenylamine (TPA) and diphenylamine (DPA), attached to the QA core. These HTMs were synthesized and used to successfully fabricate in mesoscopic TiO 2 /CH 3 NH 3 PbI 3 /HTM perovskite devices. Under AM 1.5G illumination at 100 mW cm -2 , the devices achieved a maximum efficiency of 18.2% for ACE-QA-ACE, 16.6% for TPA-QA-TPA and 15.5% for DPA-QA-DPA without any additives, whereas reference devices with doped spiro-OMeTAD as the HTM achieved a PCE of 15.2%. Notably, the unencapsulated devices based on the novel dopant-free HTMs exhibited impressive stability in comparison with the devices based on doped spiro-OMeTAD under a relative humidity of 75% for 30 days. These linear symmetrical HTMs pave the way to a new class of organic hole-transporting materials for cost-efficient and large-area applications of printed perovskite solar cells.
- Subject
- dopant-free; mesoporous perovskite solar cells; acenaphthylene; triphenylamine; diphenylamine; SDG 7; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1473948
- Identifier
- uon:49156
- Identifier
- ISSN:2050-7488
- Language
- eng
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