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Dean M. DeLongchamp
Researcher at National Institute of Standards and Technology
Publications - 153
Citations - 13151
Dean M. DeLongchamp is an academic researcher from National Institute of Standards and Technology. The author has contributed to research in topics: Organic solar cell & Thin film. The author has an hindex of 55, co-authored 144 publications receiving 11314 citations. Previous affiliations of Dean M. DeLongchamp include Massachusetts Institute of Technology & Northwestern University.
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Journal ArticleDOI
Thin Film Microstructure of a Solution Processable Pyrene-Based Organic Semiconductor
Leah A. Lucas,Dean M. DeLongchamp,Lee J. Richter,R. Joseph Kline,Daniel A. Fischer,Bilal R. Kaafarani,Ghassan E. Jabbour +6 more
TL;DR: In this article, the microstructure of TQPP-12 was characterized using a combination of polarized photon absorption spectroscopies (X-ray, vis, and infrared), X-ray diffraction, and scanning probe techniques.
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Direct correlation of charge transfer absorption with molecular donor:acceptor interfacial area via photothermal deflection spectroscopy
Ester Buchaca-Domingo,Koen Vandewal,Zhuping Fei,Scott E. Watkins,Fiona H. Scholes,James H. Bannock,John C. de Mello,Lee J. Richter,Dean M. DeLongchamp,Aram Amassian,Martin Heeney,Alberto Salleo,Natalie Stingelin +12 more
TL;DR: This work shows that the charge transfer (CT) absorption signal in bulk-heterojunction solar cell blends, measured by photothermal deflection spectroscopy, is directly proportional to the density of molecular donor:acceptor interfaces, and determines the absolute molar extinction coefficient of the CT transition for an archetypical polymer:fullerene interface.
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Influence of Dielectric Surface Chemistry on the Microstructure and Carrier Mobility of an n‐Type Organic Semiconductor
Parul Dhagat,Hanna M. Haverinen,R. Joseph Kline,Youngsuk Jung,Daniel A. Fischer,Dean M. DeLongchamp,Ghassan E. Jabbour +6 more
TL;DR: In this paper, the microstructure evolution of 3,4,9,10-perylene-tetracarboxylic bis-benzimidazole (PTCBI) thin films resulting from conditions imposed during film deposition is examined.
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Influence of substrate on crystallization in polythiophene/fullerene blends ☆
Christine He,David S. Germack,R. Joseph Kline,Dean M. DeLongchamp,Daniel A. Fischer,Chad R. Snyder,Michael F. Toney,James G. Kushmerick,Lee J. Richter +8 more
TL;DR: In this article, the microscopic crystallization behavior in polythiophene/fullerene blends is strongly influenced by the substrate on which the BHJ is cast, which is attributed to the interfacial segregation of the PCBM.
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Real-time X-ray scattering studies of film evolution in high performing small-molecule–fullerene organic solar cells
Sebastian Engmann,Felicia A. Bokel,Andrew A. Herzing,Hyun Wook Ro,Claudio Girotto,Bruno J. A. Caputo,Corey V. Hoven,Eric Schaible,Alexander Hexemer,Dean M. DeLongchamp,Lee J. Richter +10 more
TL;DR: In this paper, the influence of the formulation additive 1,8-diiodooctane (DIO) on the structural evolution of bulk heterojunction (BHJ) films based the small molecule donor 7,7′-(4,4-bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′]dithiophene-2,6-diyl)bis(6-fluoro-5-(5′-hexyl-[2,2′-bithiophen]-5