This page has only limited features, please log in for full access.
This research collects and analyzes student and faculty knowledge and perceptions toward sustainability education at a predominately undergraduate, teaching-oriented university. In-depth, qualitative methods distinguish low- and high-knowledge student and faculty cohorts, identify perceived barriers to sustainability education in each cohort, and recognize strategies to overcome the barriers identified by each cohort. Data collected from recorded and transcribed semi-structured interviews of student and faculty subjects underwent analysis via repeated readings to uncover key themes. Results required developing metrics for student and faculty sustainability knowledge and attitudes across disciplines, determining discipline-specific gaps in sustainability knowledge and differences in attitudes, and relating implementation barriers to general or specific knowledge gaps and attitudes. Findings identified low and high levels of sustainability knowledge within the student and faculty subject population and revealed barriers in pursuing interdisciplinary sustainability curricula across disciplines and among both students and faculty at the study university. Overall, higher sustainability knowledge participants tend to identify barriers related to institutional accountability while lower sustainability knowledge participants tend to identify barriers related to personal responsibility. Distributing barriers and solutions along a continuum from personal responsibility to educational institution responsibility reveals more recognition of barriers at the personal level and more solutions proposed at the institutional level. This result may reflect a common tendency to deny personal responsibility when addressing sustainability challenges.
Brian Pompeii; Yi-Wen Chiu; Dawn Neill; David Braun; Gregg Fiegel; Rebekah Oulton; Joseph Ragsdale; Kylee Singh. Identifying and Overcoming Barriers to Integrating Sustainability across the Curriculum at a Teaching-Oriented University. Sustainability 2019, 11, 2652 .
AMA StyleBrian Pompeii, Yi-Wen Chiu, Dawn Neill, David Braun, Gregg Fiegel, Rebekah Oulton, Joseph Ragsdale, Kylee Singh. Identifying and Overcoming Barriers to Integrating Sustainability across the Curriculum at a Teaching-Oriented University. Sustainability. 2019; 11 (9):2652.
Chicago/Turabian StyleBrian Pompeii; Yi-Wen Chiu; Dawn Neill; David Braun; Gregg Fiegel; Rebekah Oulton; Joseph Ragsdale; Kylee Singh. 2019. "Identifying and Overcoming Barriers to Integrating Sustainability across the Curriculum at a Teaching-Oriented University." Sustainability 11, no. 9: 2652.
This article summarizes mechanisms considered to explain electronic transport in organic and polymer devices, primarily light‐emitting diodes. Four tables summarize models on the basis of thermal processes such as thermionic and field emission, a variety of tunneling paths, hopping, space‐charge‐limited models, and several field‐dependent mobility models. Energy‐band diagrams illustrate and compare selected models. This article catalogs the mechanisms in an effort to easily direct readers to the relevant literature for more detailed treatments. © 2003 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 41: 2622–2629, 2003
David Braun. Electronic injection and conduction processes for polymer devices. Journal of Polymer Science Part B: Polymer Physics 2003, 41, 2622 -2629.
AMA StyleDavid Braun. Electronic injection and conduction processes for polymer devices. Journal of Polymer Science Part B: Polymer Physics. 2003; 41 (21):2622-2629.
Chicago/Turabian StyleDavid Braun. 2003. "Electronic injection and conduction processes for polymer devices." Journal of Polymer Science Part B: Polymer Physics 41, no. 21: 2622-2629.
Technologies based on organic semiconductors may answer the increasing demands that consumers make in the areas of large-area electronics, lightweight displays, and portable computing. Advances in scientific understanding, technology, and device performance have occurred particularly rapidly in the area of polymer light-emitting diodes (LEDs). Material properties and economic considerations suggest that polymer LEDs are the devices most likely to win the race to applications that produce light on inorganic substrates such as glass and silicon, as well as plastic substrates. The field of semiconducting polymers has its root in the 1977 discovery of the semiconducting properties of polyacetylene1. This breakthrough earned Alan Heeger, Alan MacDiarmid, and Hideki Shirakawa the 2000 Nobel Prize in Chemistry for ‘the discovery and development of conductive polymers’2, 3, 4, 5. Other review articles capture how more than two decades of developments in the physical and chemical understanding of these novel materials has led to new device applications as active and passive electronic and optoelectronic devices ranging from diodes and transistors to polymer LEDs, photodiodes, lasers, and solar cells6, 7, 8, 9, 10, 11. Much interest in plastic devices derives from the opportunities to use clever control of polymer structure combined with relatively economical polymer synthesis and processing techniques to obtain simultaneous control over electronic, optical, chemical, and mechanical features5. This article focuses on the advances leading to polymer LEDs12, 13, 14.
David Braun. Semiconducting polymer LEDs. Materials Today 2002, 5, 32 -39.
AMA StyleDavid Braun. Semiconducting polymer LEDs. Materials Today. 2002; 5 (6):32-39.
Chicago/Turabian StyleDavid Braun. 2002. "Semiconducting polymer LEDs." Materials Today 5, no. 6: 32-39.
Passive matrix displays based on polymer and organic light-emitting diodes suffer from crosstalk, when the emission of light from one pixel depends on the operation of another pixel. We use circuit simulation in order to explain the causes of crosstalk and to quantify the consequences. This work analyzes how crosstalk arises from electrode resistance, pixel leakage current, and the location of faulty pixels. All factors influence both image uniformity and the power consumption of the display.
D. Braun; J. Rowe; G. Yu. Crosstalk and image uniformity in passive matrix polymer LED displays. Synthetic Metals 1999, 102, 920 -921.
AMA StyleD. Braun, J. Rowe, G. Yu. Crosstalk and image uniformity in passive matrix polymer LED displays. Synthetic Metals. 1999; 102 (1-3):920-921.
Chicago/Turabian StyleD. Braun; J. Rowe; G. Yu. 1999. "Crosstalk and image uniformity in passive matrix polymer LED displays." Synthetic Metals 102, no. 1-3: 920-921.
Two-dimensional passive photodiode matrices are hardly useful for image sensing due to the crosstalk between pixels. This crosstalk makes it difficult to recover information from individual pixels. A switching unit attached to each sensing unit has been the common solution in image sensors (such as in CMOS sensors and in TFT-PiN a-Si photosensors). A novel organic photodiode with voltage-switchable photosensitivity was developed recently. Passive photodiode matrices made with such organic photodiodes can be used for image sensing applications. This circuit simulation study demonstrates an effective scheme to extract images from passive photodiode matrices, concluding that individual photodiode parameters determine the contrast and resolution of N by M image sensors.
D. Braun; G. Yu. Simulations of Passive Matrix Polymer Image Sensors. MRS Proceedings 1999, 558, 1 .
AMA StyleD. Braun, G. Yu. Simulations of Passive Matrix Polymer Image Sensors. MRS Proceedings. 1999; 558 ():1.
Chicago/Turabian StyleD. Braun; G. Yu. 1999. "Simulations of Passive Matrix Polymer Image Sensors." MRS Proceedings 558, no. : 1.