|
|
|
|
| LEADER |
01000caa a22002652c 4500 |
| 001 |
NLM314378944 |
| 003 |
DE-627 |
| 005 |
20250227214423.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2020 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1002/adma.202001878
|2 doi
|
| 028 |
5 |
2 |
|a pubmed25n1047.xml
|
| 035 |
|
|
|a (DE-627)NLM314378944
|
| 035 |
|
|
|a (NLM)32864757
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Keshavarz, Masoumeh
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Tuning the Structural and Optoelectronic Properties of Cs2 AgBiBr6 Double-Perovskite Single Crystals through Alkali-Metal Substitution
|
| 264 |
|
1 |
|c 2020
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Revised 07.10.2020
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a © 2020 The Authors. Published by Wiley-VCH GmbH.
|
| 520 |
|
|
|a Lead-free double perovskites have great potential as stable and nontoxic optoelectronic materials. Recently, Cs2 AgBiBr6 has emerged as a promising material, with suboptimal photon-to-charge carrier conversion efficiency, yet well suited for high-energy photon-detection applications. Here, the optoelectronic and structural properties of pure Cs2 AgBiBr6 and alkali-metal-substituted (Cs1- x Yx )2 AgBiBr6 (Y: Rb+ , K+ , Na+ ; x = 0.02) single crystals are investigated. Strikingly, alkali-substitution entails a tunability to the material system in its response to X-rays and structural properties that is most strongly revealed in Rb-substituted compounds whose X-ray sensitivity outperforms other double-perovskite-based devices reported. While the fundamental nature and magnitude of the bandgap remains unchanged, the alkali-substituted materials exhibit a threefold boost in their fundamental carrier recombination lifetime at room temperature. Moreover, an enhanced electron-acoustic phonon scattering is found compared to Cs2 AgBiBr6 . The study thus paves the way for employing cation substitution to tune the properties of double perovskites toward a new material platform for optoelectronics
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a X-ray response
|
| 650 |
|
4 |
|a alkali-substitution
|
| 650 |
|
4 |
|a double perovskites
|
| 650 |
|
4 |
|a electron-phonon coupling
|
| 650 |
|
4 |
|a photophysical properties
|
| 700 |
1 |
|
|a Debroye, Elke
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Ottesen, Martin
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Martin, Cristina
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zhang, Heng
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Fron, Eduard
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Küchler, Robert
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Steele, Julian A
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Bremholm, Martin
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Van de Vondel, Joris
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Wang, Hai I
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Bonn, Mischa
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Roeffaers, Maarten B J
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Wiedmann, Steffen
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Hofkens, Johan
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 40 vom: 31. Okt., Seite e2001878
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
|
| 773 |
1 |
8 |
|g volume:32
|g year:2020
|g number:40
|g day:31
|g month:10
|g pages:e2001878
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1002/adma.202001878
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 32
|j 2020
|e 40
|b 31
|c 10
|h e2001878
|