harlan.heilman

Characterizing nanoscale origins of fibrous texture in high moisture extruded texturized pea protein and chicken breast meat using X-ray scattering

“Characterizing nanoscale origins of fibrous texture in high moisture extruded texturized pea protein and chicken breast meat using X-ray scattering”, Sahil Nain, Brian A. Collins, Girish Ganjyal, Submitted (2026).

Errors in reconstruction of dichroic X-ray orientation tomography due to polarization rotation of the incident beam

“Errors in reconstruction of dichroic X-ray orientation tomography due to polarization rotation of the incident beam” M. Marcus, H. Heilman, K. Andrle, J. Plumb, J. Synchrotron Rad. (2026) DOI: 10.1107/S1600577525011051. Dichroic X-ray tomography is a technique in which the crystal orientation or magnetization of a sample is resolved in three dimensions. The best-known uses of […]

Scalable organic agrivoltaics guided by average chlorophyll transmittance

Semitransparent organic photovoltaics (ST-OPVs) hold promise for agrivoltaics and building-integrated photovoltaics (BIPVs) due to the ability to engineer device absorption profiles. While average visible transmittance (AVT) has been used to address BIPV applications, nothing similar has been defined for agrivoltaics. We introduce Average Chlorophyll Transmittance (ACT) to target agrivoltaics applications whose absorbance anticorrelates with photopic […]

Epitaxial growth of Co(x)Mn(y)Si(z) (111) thin films in the compositional range around the Heusler alloy Co(2)MnSi.

Epitaxial growth and structural properties of CoxMnySiz thin films on Ge 111 substrates, including the Heusler alloy Co2 MnSi 111, have been studied using combinatorial molecular beam epitaxy MBE techniques. In situ reflection high energy electron diffraction and ex situ x-ray diffraction experiments show that high quality coherent MBE growth with fcc 111 stacking can […]

Molecular Miscibility of Polymer−Fullerene Blends

The device function of polymer bulk heterojunction (BHJ) solar cells has been commonly interpreted to arise from charge separation at discrete interfaces between phase-separated materials and subsequent charge transport through these phases without consideration of phase purity. To probe composition, the miscibility of poly(3-hexylthiophene) (P3HT) and poly(2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene) (MDMO-PPV) with phenyl-C61-butyric acid methyl ester (PCBM) has been […]