{"title":"Device physics of organic vertical transistors based on conductive network electrodes","authors":"Chuan Liu","doi":"10.1117/12.2597195","DOIUrl":"https://doi.org/10.1117/12.2597195","url":null,"abstract":"Vertical organic field effect transistors (VOFET) and vertical static induction transistor (VSIT) have shown the advances of large on-current, high compatibility with sensors, ease of solution-processing and good mechanical flexibility. However, there has been no concise and explicit theories for these transistors. Here, we draw the physical images of the mechanisms, derive the electrostatic potentials, and propose the simple current-voltage relations for these vertical organic transistors. The theory has been verified by numerical simulation and are consistent with experimental results. The theories also provide guidances for device designing toward sharp turn-on properties, a large on-off ratio and good saturation degree.","PeriodicalId":175873,"journal":{"name":"Organic and Hybrid Field-Effect Transistors XX","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116781826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Flexible organic transistors with submicron channel lengths and gate-to-contact overlaps","authors":"H. Klauk, U. Zschieschang","doi":"10.1117/12.2597202","DOIUrl":"https://doi.org/10.1117/12.2597202","url":null,"abstract":"","PeriodicalId":175873,"journal":{"name":"Organic and Hybrid Field-Effect Transistors XX","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127704780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhanced non-volatile attribute of FeFET based memory device via tuning of ferroelectric microstructure","authors":"D. Roy","doi":"10.1117/12.2596104","DOIUrl":"https://doi.org/10.1117/12.2596104","url":null,"abstract":"","PeriodicalId":175873,"journal":{"name":"Organic and Hybrid Field-Effect Transistors XX","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128004315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stephanie S. Lee, Yongfan Yan, A. Shtukenberg, B. Kahr, Yuze Zhang
{"title":"Twisting organic semiconductor crystals","authors":"Stephanie S. Lee, Yongfan Yan, A. Shtukenberg, B. Kahr, Yuze Zhang","doi":"10.1117/12.2595148","DOIUrl":"https://doi.org/10.1117/12.2595148","url":null,"abstract":"Crystals that twist as they grow are common but little known and introduce completely unexplored features to materials design. Here, we present growth-induced twists to molecular semiconductor crystals with the expectation that microstructure and continually precessing crystallographic orientations can modulate interactions with light, charge transport, and other optoelectronic processes. We have found that a variety of organic semiconductors and charge transfer complexes can be readily induced to grow from the melt as spherulites of tightly packed helicoidal fibrils. The twisting pitch can be controlled by the degree of undercooling after melting or through the incorporation of additives. Intriguingly, charge mobilities measured using field-effect transistor platforms have been found to increase with increasing extent of twisting. These results indicate crystal twisting to be a promising strategy for modulating the performance of optoelectronic devices.","PeriodicalId":175873,"journal":{"name":"Organic and Hybrid Field-Effect Transistors XX","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131801236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}