RESUMO
We assessed the effects of ultra dry-air plasma surface treatments on the properties of Al2O3-GPTMS-PMMA hybrid dielectric layers for applications to high-performance amorphous Indium Gallium Zinc Oxide (a-IGZO) thin film transistors (TFTs). The hybrid layers were deposited by an easy dip coating sol-gel process at low temperature and then treated with dry-air plasma at 1, 2 and 3 consecutive cycles. Their properties were analyzed as a function of the number of plasma cycles and contrasted with those of the untreated ones. The dielectric characteristics of the hybrid layers were determined from I-V and C-f measurements performed on metal-insulator-metal and metal-insulator-semiconductor devices. The results show that the plasma treatments increase the surface energy and wettability of the hybrid films. There is also a reduction of the OH groups and oxygen vacancies in the hybrid network improving the dielectric properties. The incorporation of nitrogen into the hybrid films surface is also observed. The plasma-treated hybrid dielectric layers were applied as dielectric gate in the fabrication of a-IGZO TFTs. The best electrical performance of the fabricated TFTs was achieved with the 3 cycles plasma-treated hybrid dielectric gate, showing high mobility, 29.3 cm2 V-1 s-1, low threshold voltage, 2.9 V, high I ON/OFF current ratio, 106, and low subthreshold swing of 0.42 V dec-1.
RESUMO
Introducción: La cuantificación del rango de movimiento de la rodilla es una medida clínicamente relevante en el ámbito sanitario, ya que su disminución puede alterar las actividades de la vida diaria. La obtención de una medida fiable del rango de movimiento nos permite valorar la eficacia de las intervenciones, así como la gravedad de la enfermedad. Por esto, el objetivo de este estudio fue conocer la fiabilidad intra e interevaluador de un protocolo para el rango de movimiento articular de la rodilla llevado a cabo con un sensor inercial en sujetos asintomáticos. Métodos: Se midió el rango de movimiento de 32 rodillas en sujetos asintomáticos, se realizaron 2 sesiones de medición, una por evaluador, en el mismo día. En cada sesión se hicieron un total de 8 mediciones (2 medidas para flexión en decúbito supino, 2 medidas para extensión en decúbito supino, 2 medidas para flexión en bipedestación y 2 para la extensión en bipedestación). Resultados: Para la fiabilidad interevaluador se consiguieron buenos resultados con un ICC superior a 0,79 para todos los movimientos. Los datos obtenidos para la fiabilidad intraevaluador en todos los movimientos fueron excelentes (ICC > 0,88). Conclusión: Este estudio obtuvo una excelente fiabilidad interevaluador e intraevaluador para los sujetos sanos midiendo con sensores inerciales
Introduction: The quantification of knee range of motion is a clinically relevant measurement in the healthcare setting, as its decrease can alter activities of daily living. Collecting reliable measurements of the range of motion allows us to evaluate the reliability of interventions, or the severity of the pathology. The objective of this study was to obtain the intra- and inter- rater reliability of a protocol for the knee the range of joint motion, measured with an inertial sensor in asymptomatic subjects. Methods: The range of motion of 32 asymptomatic knees was measured. Two measurement sessions were performed by two different evaluators. A total of 8 measurements were made in each session: 2 measurements for flexion in supine decubitus position, 2 measurements for extension in supine decubitus, 2 measurements for flexion in standing position and 2 measurements for extension in standing position. Results: For inter-rater reliability, good results were achieved, with an ICC > 0.79 for all movements. The obtained data for intra-rater reliability in all the movements was excellent, with an ICC > 0.88. Conclusion: This study obtained excellent inter-rater and intra-rater reliability for healthy subjects
