Solution Processed CH3NH3PbI3-xClx Perovskite Based Self -Powered Ozone Sensing Element Operated at Room Temperature

被引：97

作者：

Kakavelakis, George ^{[1
,2
,3
]}

Gagaoudakis, Emmanouil ^{[4
,5
]}

Petridis, Konstantinos ^{[1
,2
,6
]}

Petromichelaki, Valia ^{[4
,5
]}

Binas, Vassilis ^{[4
,5
,7
]}

Kiriakidis, George ^{[4
,5
,7
]}

Kymakis, Emmanuel ^{[1
,2
]}

机构：

[1] TEI Crete Heraklion, Ctr Mat Technol & Photon, Iraklion 71004, Greece

[2] TEI Crete Heraklion, Sch Appl Technol, Elect Engn Dept, Iraklion 71004, Greece

[3] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Crete, Greece

[4] Univ Crete, Dept Phys, Iraklion 71003, Crete, Greece

[5] Fdn Res & Technol FORTH Hellas, IESL, POB 1385, Iraklion 70013, Crete, Greece

[6] Technol Educ Inst Crete, Dept Elect Engn, Romanou 3, Khania 73100, Greece

[7] Univ Crete, Crete Ctr Quantum Complex & Nanotechnol, Dept Phys, Iraklion 71003, Greece

来源：

ACS SENSORS | 2018年 / 3卷 / 01期

关键词：

lead halide perovskites; self-powered ozone sensing element; solution processed; room temperature operated; ultrahigh sensitivity; METAL-HALIDE PEROVSKITES; SOLAR-CELLS; ZINC-OXIDE; GAS SENSOR; THIN-FILMS; ZNO FILMS; CRYSTALLIZATION; PHOTODETECTORS; MORPHOLOGY; DETECTORS;

D O I：

10.1021/acssensors.7b00761

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hybrid lead halide spin coated perovskite films have been successfully tested as portable, flexible, operated at room temperature, self-powered, and ultrasensitive ozone sensing elements. The electrical resistance of the hybrid lead mixed halide perovskite (CH3NH3PbI3-xClx) sensing element, was immediately decreased when exposed to an ozone (O-3) environment and manage to recover its pristine electrical conductivity values within few seconds after the complete removal of ozone gas. The sensing measurements showed different response times at different gas concentrations, good repeatability, ultrahigh sensitivity and fast recovery time. To the best of our knowledge, this is the first time that a lead halide perovskite semiconductor material is demonstrating its sensing properties in an ozone environment. This work shows the potential of hybrid lead halide based perovskites as reliable sensing elements, serving the objectives of environmental control, with important socioeconomic impact.

引用

页码：135 / 142

页数：8

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