DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ippili, Swathi | ko |
dc.contributor.author | Jella, Venkatraju | ko |
dc.contributor.author | Kim, Jaegyu | ko |
dc.contributor.author | Hong, Seungbum | ko |
dc.contributor.author | Yoon, Soon-Gil | ko |
dc.date.accessioned | 2018-07-24T02:21:25Z | - |
dc.date.available | 2018-07-24T02:21:25Z | - |
dc.date.created | 2018-07-04 | - |
dc.date.created | 2018-07-04 | - |
dc.date.created | 2018-07-04 | - |
dc.date.issued | 2018-07 | - |
dc.identifier.citation | NANO ENERGY, v.49, pp.247 - 256 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | http://hdl.handle.net/10203/243999 | - |
dc.description.abstract | We report a high-performance flexible piezoelectric generator (PEG) that was based on organic-inorganic lead halide perovskite materials and is operated by controlling the dielectric constant via the partial substitution of Pb2+ with Fe2+ in MAPbI(3). The partial replacement of Pb2+ with Fe2+ improved both the morphology and crystallinity of MAPb(1-x)Fe(x)I(3) (0.01 <= x <= 0.50) films that undergo a tetragonal-cubic phase transition above an incorporated concentration of Fe2+ (x > 0.07). In addition, the phase transition temperatures of MAPb1-xFexI3 (0.01 <= x <= 0.07) films linearly decreased as a function of incorporated concentration, which resulted in a transition temperature for MAPb(1-x)Fe(x)I(3) (x = 0.07) of similar to 45.5 +/- 1.5 degrees C. The dielectric properties as a function of incorporated concentration at room temperature suggested that MAPb(1-x)Fe(x)I(3) (x = 0.07) exhibited a dielectric constant of similar to 107 and a dissipation factor of 0.02 at 100 kHz. The MAPb(1-x)Fe(x)I(3) (x = 0.07) films exhibited a low leakage current density of similar to 10-6 at a high applied electric field of 40 kV/cm, and the resultant remanent polarization from saturated ferroelectric P-E hysteresis loops was similar to 1.6 mu C/cm(2). The MAPb(1-x)Fe(x)I(3) (x = 0.07) flexible PEG improved output performance by similar to 7.29 V and current density by similar to 0.88 mu A/cm(2) after poling at 30 kV/cm. This was sufficient to instantly light a commercial light-emitting diode (LED) without a storage device. This approach provides a framework that enhances the output performance of organic-inorganic metal halide perovskite materials-based piezoelectric energy harvesters, which could help pave the road to viable, selfpowered, wearable electronics. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | LEAD-ZIRCONATE-TITANATE | - |
dc.subject | LIGHT-EMITTING-DIODES | - |
dc.subject | HALIDE PEROVSKITES | - |
dc.subject | CONVERSION EFFICIENCY | - |
dc.subject | PHASE-TRANSITIONS | - |
dc.subject | SOLAR-CELLS | - |
dc.subject | NANOGENERATOR | - |
dc.subject | IODIDE | - |
dc.subject | POLARIZATION | - |
dc.subject | DEVICES | - |
dc.title | Enhanced piezoelectric output performance via control of dielectrics in Fe2+- incorporated MAPbI(3) perovskite thin films: Flexible piezoelectric generators | - |
dc.type | Article | - |
dc.identifier.wosid | 000434829500030 | - |
dc.identifier.scopusid | 2-s2.0-85046124004 | - |
dc.type.rims | ART | - |
dc.citation.volume | 49 | - |
dc.citation.beginningpage | 247 | - |
dc.citation.endingpage | 256 | - |
dc.citation.publicationname | NANO ENERGY | - |
dc.identifier.doi | 10.1016/j.nanoen.2018.04.031 | - |
dc.contributor.localauthor | Hong, Seungbum | - |
dc.contributor.nonIdAuthor | Ippili, Swathi | - |
dc.contributor.nonIdAuthor | Jella, Venkatraju | - |
dc.contributor.nonIdAuthor | Yoon, Soon-Gil | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Fe2+ incorporated MAPbI(3) perovskite | - |
dc.subject.keywordAuthor | Phase transition | - |
dc.subject.keywordAuthor | Dielectric property | - |
dc.subject.keywordAuthor | Piezoelectric generator | - |
dc.subject.keywordPlus | LEAD-ZIRCONATE-TITANATE | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | HALIDE PEROVSKITES | - |
dc.subject.keywordPlus | CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | PHASE-TRANSITIONS | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | NANOGENERATOR | - |
dc.subject.keywordPlus | IODIDE | - |
dc.subject.keywordPlus | POLARIZATION | - |
dc.subject.keywordPlus | DEVICES | - |
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