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The main bottleneck of this semiconductor material compared to mainstream indium\u2010gallium\u2010zinc oxide (IGZO) is centered in the larger processing temperatures required to achieve acceptable performance (&gt;300 \u00b0C), not compatible with low\u2010cost flexible substrates. This work reports for the first time flexible amorphous\u2010ZTO TFTs processed at a maximum temperature of 180 \u00b0C. Different aspects are explored to obtain performance levels comparable to IGZO devices at these low processing temperatures, such as hydrogen incorporation during ZTO sputtering and integration with a high\u2010\u03ba multilayer\/multicomponent dielectric. Close\u2010to\u2010zero turn\u2010on voltage, field\u2010effect mobility \u22485 cm<jats:sup>2<\/jats:sup> V<jats:sup>\u22121<\/jats:sup> s<jats:sup>\u22121<\/jats:sup>, and subthreshold slope of 0.26 V dec<jats:sup>\u22121<\/jats:sup> are obtained. Stability under negative\u2010bias\u2010illumination stress is dramatically improved with hydrogen incorporation in ZTO and device performance is insensitive to bending under a radius of curvature of 15 mm. Inverters using the ZTO TFTs enable rail\u2010to\u2010rail operation with supply voltage <jats:italic>V<\/jats:italic>\n<jats:sub>DD<\/jats:sub> as low as 5 V, while a differential amplifier with positive feedback loop provides a gain of 17 dB and unity gain frequency of 40 kHz, limited by the large gate\u2010to\u2010source and gate\u2010to\u2010drain overlaps used herein.<\/jats:p>","DOI":"10.1002\/aelm.201800032","type":"journal-article","created":{"date-parts":[[2018,5,18]],"date-time":"2018-05-18T02:17:55Z","timestamp":1526609875000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":90,"title":["A Sustainable Approach to Flexible Electronics with Zinc\u2010Tin Oxide Thin\u2010Film Transistors"],"prefix":"10.1002","volume":"4","author":[{"given":"Cristina","family":"Fernandes","sequence":"first","affiliation":[{"name":"Department of Materials Science Faculty of Sciences and Technology Universidade NOVA de Lisboa and CEMOP\/UNINOVA  Campus de Caparica 2829\u2010516 Caparica Portugal"}]},{"given":"Ana","family":"Santa","sequence":"additional","affiliation":[{"name":"Department of Materials Science Faculty of Sciences and Technology Universidade NOVA de Lisboa and CEMOP\/UNINOVA  Campus de Caparica 2829\u2010516 Caparica Portugal"}]},{"given":"\u00c2ngelo","family":"Santos","sequence":"additional","affiliation":[{"name":"Department of Materials Science Faculty of Sciences and Technology Universidade NOVA de Lisboa and CEMOP\/UNINOVA  Campus de Caparica 2829\u2010516 Caparica Portugal"}]},{"given":"Pydi","family":"Bahubalindruni","sequence":"additional","affiliation":[{"name":"IIIT Delhi Okhla Industrial Estate  Phase III New Delhi 110020 India"}]},{"given":"Jonas","family":"Deuermeier","sequence":"additional","affiliation":[{"name":"Department of Materials Science Faculty of Sciences and Technology Universidade NOVA de Lisboa and CEMOP\/UNINOVA  Campus de Caparica 2829\u2010516 Caparica Portugal"}]},{"given":"Rodrigo","family":"Martins","sequence":"additional","affiliation":[{"name":"Department of Materials Science Faculty of Sciences and Technology Universidade NOVA de Lisboa and CEMOP\/UNINOVA  Campus de Caparica 2829\u2010516 Caparica Portugal"}]},{"given":"Elvira","family":"Fortunato","sequence":"additional","affiliation":[{"name":"Department of Materials Science Faculty of Sciences and Technology Universidade NOVA de Lisboa and CEMOP\/UNINOVA  Campus de Caparica 2829\u2010516 Caparica Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5446-2759","authenticated-orcid":false,"given":"Pedro","family":"Barquinha","sequence":"additional","affiliation":[{"name":"Department of Materials Science Faculty of Sciences and Technology Universidade NOVA de Lisboa and CEMOP\/UNINOVA  Campus de Caparica 2829\u2010516 Caparica Portugal"}]}],"member":"311","published-online":{"date-parts":[[2018,5,17]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1109\/JDT.2009.2025521"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201103228"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tsf.2011.07.018"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature03090"},{"key":"e_1_2_7_5_1","unstructured":"http:\/\/ec.europa.eu\/growth\/sectors\/raw\u2010materials\/specific\u2010interest\/critical\/index_en.htm(accessed: November 2017)."},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.1843286"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.sse.2006.03.004"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.2828862"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.3938\/jkps.54.544"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1109\/TED.2014.2337307"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.3126956"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1038\/srep38984"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.86.165210"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tsf.2013.05.146"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1088\/0957-4484\/27\/32\/325203"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.4961711"},{"key":"e_1_2_7_17_1","first-page":"13503","volume":"86","author":"Takenouchi R.","year":"2015","journal-title":"IMID 2015 Dig."},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.2906379"},{"key":"e_1_2_7_19_1","volume":"49","author":"Kim H. 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