File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1016/j.jpowsour.2020.228736
- Scopus: eid_2-s2.0-85089404034
- WOS: WOS:000582488600022
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Role of formamidinium in the crystallization of FAxMA1-xPbI3-yCly perovskite via recrystallization-assisted bath-immersion sequential ambient deposition
Title | Role of formamidinium in the crystallization of FAxMA1-xPbI3-yCly perovskite via recrystallization-assisted bath-immersion sequential ambient deposition |
---|---|
Authors | |
Keywords | Mixed-ion perovskite Ambient process Formamidinium Sequential deposition Bath-immersion |
Issue Date | 2020 |
Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jpowsour |
Citation | Journal of Power Sources, 2020, v. 477, p. article no. 228736 How to Cite? |
Abstract | Crystallization control plays a key role in the preparation of high-quality perovskite absorbers, which is particularly critical in ambient-process fabrications. FA/MA (FA+ = formamidinium, MA+ = methylammonium) mixed perovskite solar cells (PVSCs) have been reported to exhibit a higher performance than MA-based devices. Here, we systematically study the role of FA in the sequential crystallization of FAxMA1-xPbI3-yCly mixed-ion perovskite prepared by recrystallization-assisted bath-immersion method. A dramatic different morphology of bath-immersed perovskite films is observed when using FA and MA based bath solutions, while it is consistently reconstructed after recrystallization. A considerably enhanced selective growth of (110) and (220) domains toward out-of-plane orientation is observed when involving FA into MA-based perovskite. The morphology and efficiency evolution are systematically studied while changing the FA-involvement ratio. Benefiting from improved crystal quality and extended absorption edge, an enhancement in device efficiency has been observed. |
Persistent Identifier | http://hdl.handle.net/10722/287677 |
ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 1.857 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cheng, R | - |
dc.contributor.author | Feng, SP | - |
dc.date.accessioned | 2020-10-05T12:01:37Z | - |
dc.date.available | 2020-10-05T12:01:37Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Journal of Power Sources, 2020, v. 477, p. article no. 228736 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | http://hdl.handle.net/10722/287677 | - |
dc.description.abstract | Crystallization control plays a key role in the preparation of high-quality perovskite absorbers, which is particularly critical in ambient-process fabrications. FA/MA (FA+ = formamidinium, MA+ = methylammonium) mixed perovskite solar cells (PVSCs) have been reported to exhibit a higher performance than MA-based devices. Here, we systematically study the role of FA in the sequential crystallization of FAxMA1-xPbI3-yCly mixed-ion perovskite prepared by recrystallization-assisted bath-immersion method. A dramatic different morphology of bath-immersed perovskite films is observed when using FA and MA based bath solutions, while it is consistently reconstructed after recrystallization. A considerably enhanced selective growth of (110) and (220) domains toward out-of-plane orientation is observed when involving FA into MA-based perovskite. The morphology and efficiency evolution are systematically studied while changing the FA-involvement ratio. Benefiting from improved crystal quality and extended absorption edge, an enhancement in device efficiency has been observed. | - |
dc.language | eng | - |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jpowsour | - |
dc.relation.ispartof | Journal of Power Sources | - |
dc.subject | Mixed-ion perovskite | - |
dc.subject | Ambient process | - |
dc.subject | Formamidinium | - |
dc.subject | Sequential deposition | - |
dc.subject | Bath-immersion | - |
dc.title | Role of formamidinium in the crystallization of FAxMA1-xPbI3-yCly perovskite via recrystallization-assisted bath-immersion sequential ambient deposition | - |
dc.type | Article | - |
dc.identifier.email | Cheng, R: crra@HKUCC-COM.hku.hk | - |
dc.identifier.email | Feng, SP: hpfeng@hku.hk | - |
dc.identifier.authority | Feng, SP=rp01533 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.jpowsour.2020.228736 | - |
dc.identifier.scopus | eid_2-s2.0-85089404034 | - |
dc.identifier.hkuros | 315434 | - |
dc.identifier.volume | 477 | - |
dc.identifier.spage | article no. 228736 | - |
dc.identifier.epage | article no. 228736 | - |
dc.identifier.isi | WOS:000582488600022 | - |
dc.publisher.place | Netherlands | - |
dc.identifier.issnl | 0378-7753 | - |