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Stable Copper Phosphorus Iodide (Cu 2 P 3 I 2 ) Nano/Microwire Photodetectors
Author(s) -
Amaral Pedro E. M.,
Ji HaiFeng
Publication year - 2018
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201800275
Subject(s) - photodetector , copper , materials science , iodide , optoelectronics , ampoule , phosphorus , transistor , nano , electron mobility , analytical chemistry (journal) , inorganic chemistry , chemistry , metallurgy , composite material , organic chemistry , voltage , physics , quantum mechanics
Crystalline Cu 2 P 3 I 2 nano‐ and microwires with high purity were synthesized through a chemical vapor transport method in evacuated silica ampoules using copper(I) iodide and red phosphorus as precursors for potential applications as photodetectors. Single‐wire field‐effect transistors (FET) were built to study their electronic and optoelectronic properties. The wires exhibit a p‐type semiconducting behavior with an electron mobility of 31.6 cm 2 V −1 s −1 and I ON /I OFF ratio of ∼ 10 3 . The photodetectors are highly reproducible and stable with a short response time (40–70 ms).