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RESEARCH PRODUCT

Ligand-Length Modification in CsPbBr3 Perovskite Nanocrystals and Bilayers with PbS Quantum Dots for Improved Photodetection Performance

Juan P. Martínez-pastorJuan Navarro-arenasRafael Abargues LópezAnanthakumar SoosaimanickamHamid Pashaei AdlPedro J. Rodríguez-cantóPablo P. Boix

subject

business.industryperovskite nanocrystalsGeneral Chemical EngineeringPhotodetectorPhotodetectionligand-exchangeArticlelcsh:Chemistrylcsh:QD1-999NanocrystalQuantum dotOptoelectronicsphotodetectorsGeneral Materials ScienceCharge carrierThin filmPhotonics3-mercaptopropionic acidbusinessPerovskite (structure)

description

Nanocrystals surface chemistry engineering offers a direct approach to tune charge carrier dynamics in nanocrystals-based photodetectors. For this purpose, we have investigated the effects of altering the surface chemistry of thin films of CsPbBr3 perovskite nanocrystals produced by the doctor blading technique, via solid state ligand-exchange using 3-mercaptopropionic acid (MPA). The electrical and electro-optical properties of photovoltaic and photoconductor devices were improved after the MPA ligand exchange, mainly because of a mobility increase up to 5 &times

yearjournalcountryeditionlanguage
2020-07-01Nanomaterials
10.3390/nano10071297http://europepmc.org/articles/PMC7408175