Sökning: "energy level alignment"

Visar resultat 1 - 5 av 34 avhandlingar innehållade orden energy level alignment.

1. 1. Electronic Structures and Energy Level Alignment in Mesoscopic Solar Cells : A Hard and Soft X-ray Photoelectron Spectroscopy Study

   Författare :Rebecka Lindblad; Håkan Rensmo; Hans Seigbahn; Anders Hagfeldt; Erik Johansson; Marcus Bär; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Photoelectron spectroscopy; HAXPES; PES; XPS; electronic structure; energy level alignment; mesoscopic solar cell; hole conductor; perovskite; dye-sensitized; semiconductor-sensitized; TiO2; ZnO; spiro-OMeTAD; P3HT; DEH; metal sulfide; Li-TFSI; Co III complex; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

   Sammanfattning : Photoelectron spectroscopy is an experimental method to study the electronic structure in matter. In this thesis, a combination of soft and hard X-ray based photoelectron spectroscopy has been used to obtain atomic level understanding of electronic structures and energy level alignments in mesoscopic solar cells. LÄS MER

3. 2. Graphene Heat Spreaders for Electronics Thermal Management Applications

   Författare :Yong Zhang; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; test platform; heat spreader.; transfer; Graphene; thermal management;

   Sammanfattning : Graphene shows great potential for applications in electronics due to its outstanding physical properties such as extremely high electron mobility, high thermal conductivity, high Young’s modulus and very high surface-to-volume ratio. Among these attractive properties, the high intrinsic thermal conductivity is a critical advantage for the application of graphene in electronics to alleviate heat dissipation problems. LÄS MER

4. 3. The power of framing : A new-institutional approach to interest group participation in the European Union

   Författare :Johan Nylander; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sociology; European Union; lobbying; interest groups; new institutionalism; framing; social mechanisms; policy making; case study; energy; pharmaceuticals; alcohol; biotechnology; Sociologi; Sociology; Sociologi; Sociology; sociologi;

   Sammanfattning : This dissertation develops a theory of interest group inclusion and exclusion in policy-making processes at the European level. The theory includes three major components: the European Union as a political opportunity structure for interest groups, the role of the European Commission as policy formulator, and patterns of inclusion and exclusionof interest groups in policymaking processes. LÄS MER

5. 4. Toward the Sustainable Development of Operations: Improving Energy Efficiency as a Means to Sustainability as Practice

   Författare :Naghmeh Taghavi Nejad Deilami; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sustainable operations management; Operations management; Operations strategy; Energy efficiency;

   Sammanfattning : Addressing the challenges of sustainable development demands companies to understand the “how” to actualize sustainability-related objectives and cultivating conditions that encourage practicing sustainability. It also demands companies to structure their operations around less costly economic processes while maintaining the efficient use of resources and standards for workers’ well-being at the operational level. LÄS MER

7. 5. Evaluating for a transition - Advancing evaluation of research and policy for a more sustainable energy system and society

   Författare :Sofie Sandin; Internationella miljöinstitutet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; research evaluation; policy evaluation; transition; energy efficiency; buildings;

   Sammanfattning : In response to global sustainability challenges, there are multiple public research andpolicy incentives being implemented to support a more sustainable energy system. These are aimed at advancing technology and innovation as well as guiding citizens tochange behaviour. LÄS MER