Growth and Characterization of Radiation Sensors Based on Single Crystals of Hybrid Metal-Organic Methylammonium Lead Bromide and Iodide Perovskite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10423494" target="_blank" >RIV/00216208:11320/20:10423494 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=UwPTydNs3D" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=UwPTydNs3D</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/crat.202000112" target="_blank" >10.1002/crat.202000112</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Growth and Characterization of Radiation Sensors Based on Single Crystals of Hybrid Metal-Organic Methylammonium Lead Bromide and Iodide Perovskite

Popis výsledku v původním jazyce

The inverse temperature (T)-dependent methods yield single crystals of methylammonium lead halide perovskite with strained lattices. In contrast, the antisolvent diffusion method (antisolvent-vapor crystallization (AVC)) produces unstrained MAPbBr(3)crystals with more uniform growth features and lower density of defects. The powder X-ray diffraction (XRD) measurements confirm the cubic and the tetragonal structure of the MAPbBr(3)and the MAPbI(3)samples, respectively. The XRD pole figure measurements (MAPbBr(3)) reveal a roughly parallel dominant (100) lattice plane to the sample surface. An optimal crystal growth combines growth of a seed on an oriented substrate by the AVC method followed by either the AVC or a T-dependent method. The estimated resistivity rho and the density of trap staten(trap)values for the MAPbI(3)samples are 10(7)omega cm and 10(10)cm(-3), respectively. The X-ray detection test reveals promising electrical properties of the MAPbI(3)material. Results from the Hall measurements in van der Pauw geometry for the MAPbBr(3)samples agree with those in the literature: the charge-carrier concentration of 10(9)-10(10)cm(-3)and the mobility of 7-289 cm(2) V(-1 )s(-1),n(trap)of 10(9)-10(10)cm(-3), and rho of 10(7)-10(8)omega cm. These electrical parameters indicate that the MAPbBr(3)samples satisfy requirements for radiation sensors.

Název v anglickém jazyce

Growth and Characterization of Radiation Sensors Based on Single Crystals of Hybrid Metal-Organic Methylammonium Lead Bromide and Iodide Perovskite

Popis výsledku anglicky

The inverse temperature (T)-dependent methods yield single crystals of methylammonium lead halide perovskite with strained lattices. In contrast, the antisolvent diffusion method (antisolvent-vapor crystallization (AVC)) produces unstrained MAPbBr(3)crystals with more uniform growth features and lower density of defects. The powder X-ray diffraction (XRD) measurements confirm the cubic and the tetragonal structure of the MAPbBr(3)and the MAPbI(3)samples, respectively. The XRD pole figure measurements (MAPbBr(3)) reveal a roughly parallel dominant (100) lattice plane to the sample surface. An optimal crystal growth combines growth of a seed on an oriented substrate by the AVC method followed by either the AVC or a T-dependent method. The estimated resistivity rho and the density of trap staten(trap)values for the MAPbI(3)samples are 10(7)omega cm and 10(10)cm(-3), respectively. The X-ray detection test reveals promising electrical properties of the MAPbI(3)material. Results from the Hall measurements in van der Pauw geometry for the MAPbBr(3)samples agree with those in the literature: the charge-carrier concentration of 10(9)-10(10)cm(-3)and the mobility of 7-289 cm(2) V(-1 )s(-1),n(trap)of 10(9)-10(10)cm(-3), and rho of 10(7)-10(8)omega cm. These electrical parameters indicate that the MAPbBr(3)samples satisfy requirements for radiation sensors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Crystal Research and Technology

ISSN

0232-1300

e-ISSN

—

Svazek periodika

55

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

2000112

Kód UT WoS článku

000564011300001

EID výsledku v databázi Scopus

2-s2.0-85089960448