R
Rajiv Giridharagopal
Researcher at University of Washington
Publications - 50
Citations - 1542
Rajiv Giridharagopal is an academic researcher from University of Washington. The author has contributed to research in topics: Perovskite (structure) & Chemistry. The author has an hindex of 19, co-authored 38 publications receiving 1055 citations. Previous affiliations of Rajiv Giridharagopal include University of Texas at Dallas & Intel.
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Characterizing Morphology in Bulk Heterojunction Organic Photovoltaic Systems
TL;DR: In this article, the authors discuss several different experimental approaches for characterizing morphology in bulk heterojunction (BHJ) systems, ranging from X-ray diffraction and spectroscopy to electron microscopy and scanning probe microscopy.
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Electrochemical strain microscopy probes morphology-induced variations in ion uptake and performance in organic electrochemical transistors
Rajiv Giridharagopal,Lucas Q. Flagg,Jeffrey S. Harrison,Mark E. Ziffer,Jonathan W. Onorato,Christine K. Luscombe,David S. Ginger +6 more
TL;DR: ESM data indicate that nanoscale variations in ion uptake are associated with local changes in polymer packing that may impede ion transport to different extents within the same macroscopic film and can inform future materials optimization.
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Anion-Dependent Doping and Charge Transport in Organic Electrochemical Transistors
TL;DR: In this article, the effects of different electrolyte anions on the mixed ionic/electronic transport properties of organic electrochemical transistors (OECTs) based on poly(3-hexylthiophene-2,5-diyl).
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Interplay of Mobile Ions and Injected Carriers Creates Recombination Centers in Metal Halide Perovskites under Bias
Susanne T. Birkhold,Jake T. Precht,Hongbin Liu,Rajiv Giridharagopal,Giles E. Eperon,Lukas Schmidt-Mende,Xiaosong Li,David S. Ginger +7 more
TL;DR: In this article, the interaction of mobile ions and electronic charges to form non-radiative defects during electric biasing of methylammonium lead triiodide (MAPbI3) and formamidinium-lead triodide (FAPbI) thin films was studied.
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Submicrosecond Time Resolution Atomic Force Microscopy for Probing Nanoscale Dynamics
Rajiv Giridharagopal,Glennis E. Rayermann,Guozheng Shao,David T. Moore,Obadiah G. Reid,Andreas F. Tillack,David J. Masiello,David S. Ginger +7 more
TL;DR: It is shown that variations in device efficiency and nanoscale transient charging behavior are correlated, thereby linking local dynamics with device behavior and anticipating that this method will find application in scanning probe experiments of dynamic local mechanical, electronic, magnetic, and biophysical phenomena.