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John H. Scofield

Bio: John H. Scofield is an academic researcher from Oberlin College. The author has contributed to research in topics: Flicker noise & Noise (radio). The author has an hindex of 24, co-authored 47 publications receiving 2918 citations. Previous affiliations of John H. Scofield include National Renewable Energy Laboratory & Wright Laboratory.

Papers
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Journal ArticleDOI
TL;DR: In this article, a new process was proposed to make films of Y1Ba2Cu3O7 using coevaporation of Y, Cu, and BaF2 on SrTiO3 substrates.
Abstract: We report on a new process to make films of Y1Ba2Cu3O7 using coevaporation of Y, Cu, and BaF2 on SrTiO3 substrates. The films have high transition temperatures (up to 91 K for a full resistive transition), high critical current densities (106 A/cm2 at 81 K), and a reduced sensitivity to fabrication and environmental conditions. Because of the lower reactivity of the films, we have been able to pattern them in both the pre‐annealed and post‐annealed states using conventional positive photoresist technology.

411 citations

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TL;DR: In this article, a method for fabricating low-resistivity molybdenum films on soda-lime glass substrates with good adhesion was described, where 1-μm-thick films sputtered at low argon pressure were found to have low resistivity (10−15 μΩ cm), were under compressive stress, and suffered from poor adhesion.

331 citations

Journal ArticleDOI
John H. Scofield1
TL;DR: In this paper, a re-analysis of energy-consumption data for LEED-certified commercial buildings supplied by the New Buildings Institute (NBI) and US Green Building Council is presented.

319 citations

Journal ArticleDOI
TL;DR: In this paper, the basic principles behind the operation of a lock-in amplifier are described, with particular emphasis on looking at the frequency components of the signal present at the various stages of the lockin during a typical measurement.
Abstract: The basic principles behind the operation of a lock‐in amplifier are described. Particular emphasis is placed on looking at the frequency components of the signal present at the various stages of the lock‐in during a typical measurement. The description presented here has been used successfully to explain lock‐in operation to upper‐level laboratory students at Oberlin College.

243 citations

Journal ArticleDOI
John H. Scofield1
TL;DR: In this article, the authors examined the 2011 energy consumption, green house gas (GHG) emission, and ENERGY STAR Energy Performance Rating (EPR) data for 953 office buildings in New York City.

192 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the feasibility of providing worldwide energy for all purposes (electric power, transportation, heating/cooling, etc.) from wind, water, and sunlight (WWS) was analyzed.

1,299 citations

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TL;DR: The fabrication and operation of self-sensing nanocantilevers with fundamental mechanical resonances up to very high frequencies (VHF) are described, enabling applications requiring previously inaccessible sensitivity and bandwidth, such as fast SPM and VHF force sensing.
Abstract: Ultra-sensitive NEMS-based cantilevers for sensing, scanned probe and very high-frequency applications

1,065 citations

Journal ArticleDOI
TL;DR: Using methods developed to produce uniform, crack-free micrometer-thick films, CulnSe2 nanocrystals were tested in prototype photovoltaic devices and exhibited a reproducible photvoltaic response.
Abstract: Chalcopyrite copper indium sulfide (CuInS2) and copper indium gallium selenide (Cu(InxGa1-x)Se2; CIGS) nanocrystals ranging from ∼5 to ∼25 nm in diameter were synthesized by arrested precipitation in solution. The In/Ga ratio in the CIGS nanocrystals could be controlled by varying the In/Ga reactant ratio in the reaction, and the optical properties of the CuInS2 and CIGS nanocrystals correspond to those of the respective bulk materials. Using methods developed to produce uniform, crack-free micrometer-thick films, CuInSe2 nanocrystals were tested in prototype photovoltaic devices. As a proof-of-concept, the nanocrystal-based devices exhibited a reproducible photovoltaic response.

907 citations

Journal ArticleDOI
TL;DR: A critical review of the existing body of knowledge of researches related to green building is presented in this article, where the common research themes and methodology were identified, such as the definition and scope of green building, quantification of benefits of green buildings compared to conventional buildings, and various approaches to achieve green buildings.
Abstract: Green building is one of measures been put forward to mitigate significant impacts of the building stock on the environment, society and economy. However, there is lack of a systematic review of this large number of studies that is critical for the future endeavor. The last decades have witnessed rapid growing number of studies on green building. This paper reports a critical review of the existing body of knowledge of researches related to green building. The common research themes and methodology were identified. These common themes are the definition and scope of green building; quantification of benefits of green buildings compared to conventional buildings; and various approaches to achieve green buildings. It is found that the existing studies played predominately focus on the environmental aspect of green building. Other dimensions of sustainability of green building, especially the social sustainability is largely overlooked. Future research opportunities were identified such as effects of climatic conditions on the effectiveness of green building assessment tools, validation of real performance of green buildings, unique demands of specific population, and future proofing.

808 citations

Journal ArticleDOI
TL;DR: In this article, the authors present a detailed review of the state-of-the-art for electrochromics and its applications in smart windows and provide ample references to current literature of particular relevance.

801 citations