Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이휘건 | - |
dc.date.accessioned | 2022-05-12T05:03:15Z | - |
dc.date.available | 2022-05-12T05:03:15Z | - |
dc.date.issued | 2020-09 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v. 12, no. 39, page. 43576-43585 | en_US |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.issn | 1944-8252 | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsami.0c10077 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/170818 | - |
dc.description.abstract | Efficient charge collection in photovoltaics is a key issue toward their high performance. Despite the promising performance of colloidal quantum dot (CQD)-based photovoltaics (CQDPVs), they suffer significant dissipation of photocurrent due to imperfect surface passivation of the CQD hole transport layer (HTL) by a single 1,2-ethaneditihol (EDT) ligand. To address the critical drawback of existing CQDPVs, we offer a hybrid passivation strategy, including both EDT and thiocyanate (SCN). The hybrid passivation leads to seamless surface passivation of CQDs, remarkably suppressing charge recombination. This strategy also augments the p-doping density of the CQD, resulting in a pronounced energy level bending at the active layer/HTL interface and facilitating efficient charge separation. Moreover, enhanced electronic coupling across the CQDs (originating from reduced inter-dot spacing) promotes rapid charge extraction. Consequently, the flawless charge collection by a hybrid-passivated HTL successfully retrieves the photocurrent, achieving an enhanced CQDPV power conversion efficiency of 12.70% compared with 11.49% for the control device. | en_US |
dc.description.sponsorship | This work was supported by the National Research Foundation of Korea (NRF) grants funded by the Korea government (MSIT) (NRF-2019R1F1A1045506 and NRF-2018R1C1B6001015). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | colloidal quantum dot | en_US |
dc.subject | photovoltaics | en_US |
dc.subject | surface passivation | en_US |
dc.subject | charge collection | en_US |
dc.subject | thiocyanate | en_US |
dc.title | Hybrid Surface Passivation for Retrieving Charge Collection Efficiency of Colloidal Quantum Dot Photovoltaics | en_US |
dc.type | Article | en_US |
dc.relation.no | 39 | - |
dc.relation.volume | 12 | - |
dc.identifier.doi | 10.1021/acsami.0c10077 | - |
dc.relation.page | 43576-43585 | - |
dc.relation.journal | ACS APPLIED MATERIALS & INTERFACES | - |
dc.contributor.googleauthor | Yang, Jonghee | - |
dc.contributor.googleauthor | Oh, Jae Taek | - |
dc.contributor.googleauthor | Kim, Minseon | - |
dc.contributor.googleauthor | Song, Hochan | - |
dc.contributor.googleauthor | Boukhvalov, Danil W. | - |
dc.contributor.googleauthor | Lee, Seung Hyun | - |
dc.contributor.googleauthor | Choi, Hyosung | - |
dc.contributor.googleauthor | Yi, Whikun | - |
dc.relation.code | 2020051325 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF CHEMISTRY | - |
dc.identifier.pid | wkyi | - |
dc.identifier.orcid | http://orcid.org/0000-0001-8402-9289 | - |
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