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Molecular engineering of ionic type perylenediimide dimer-based electron transport materials for efficient planar perovskite solar cells
Vise andre og tillknytning
2018 (engelsk)Inngår i: Materials Today Energy, ISSN 2468-6069, Vol. 9, s. 264-270Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The main of this work is to overcome the drawbacks of the traditional fullerene derivatives used as electron transport materials (ETMs) for perovskite solar cells (PSCs). Herein, a new strategy to design non-fullerene ETMs is presented by molecular engineering to include charged moieties in the ETM. The designed ETM FA2+-PDI2 is intrinsically ionic and the incorporated counter ions in FA2+-PDI2 significantly increase the electron conductivity and improve the film formation properties. Through careful device optimization, PSCs based on the ionic ETM FA2+-PDI2 exhibit an impressive average power conversion efficiency (PCE) of 17.0%, which is comparable to the PSC based on PC61BM (17.5%). The superior photovoltaic performance can be attributed to efficient electron extraction and effective electron transfer in the PSCs. This work provides important insights regarding the future design of new and efficient non-fullerene ETMs for PSCs. 

sted, utgiver, år, opplag, sider
Elsevier Ltd , 2018. Vol. 9, s. 264-270
Emneord [en]
Electron transport material, Fullerene-free, Perylenediimide, Planar perovskite solar cell
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-236726DOI: 10.1016/j.mtener.2018.05.017ISI: 000443217900022Scopus ID: 2-s2.0-85048243533OAI: oai:DiVA.org:kth-236726DiVA, id: diva2:1257877
Merknad

Export Date: 22 October 2018; Article; Correspondence Address: Cheng, M.; Institute for Energy Research, Jiangsu UniversityChina; email: mingcheng@ujs.edu.cn; Funding details: Energimyndigheten; Funding details: VR, Vetenskapsrådet; Funding details: 17JDG032, Senior Talent Foundation of Jiangsu University; Funding details: 17JDG031, Senior Talent Foundation of Jiangsu University; Funding details: Knut och Alice Wallenbergs Stiftelse; Funding text: This work was financially supported by the Jiangsu University Foundation ( 17JDG032 , 17JDG031 ), Swedish Energy Agency , the Swedish Research Council , the Knut and Alice Wallenberg Foundation . Appendix A. QC 20181023

Tilgjengelig fra: 2018-10-23 Laget: 2018-10-23 Sist oppdatert: 2018-10-23bibliografisk kontrollert

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