P. Dippo
YOU?
Author Swipe
View article: Effect of hydride vapor phase epitaxy growth conditions on the degree of atomic ordering in GaInP
Effect of hydride vapor phase epitaxy growth conditions on the degree of atomic ordering in GaInP Open
We report a systematic study of CuPt-type ordering in hydride vapor phase epitaxy (HVPE)-grown Ga0.5In0.5P. Selected-area electron diffraction reveals ordering in samples grown on (001) GaAs substrates offcut toward (11¯1)B. The ordering i…
View article: Zn<sub>2</sub>SbN<sub>3</sub>: growth and characterization of a metastable photoactive semiconductor
Zn<sub>2</sub>SbN<sub>3</sub>: growth and characterization of a metastable photoactive semiconductor Open
Zn2SbN3 is the first Sb-based crystalline nitride and a photoactive semiconductor.
View article: Exciton photoluminescence and benign defect complex formation in zinc tin nitride
Exciton photoluminescence and benign defect complex formation in zinc tin nitride Open
Exciton photoluminescence is observed in disordered zinc tin nitride as a result of benign defect complex formation encouraged by annealing.
View article: Characterization of defects in copper antimony disulfide
Characterization of defects in copper antimony disulfide Open
Copper antimony disulfide (CuSbS2) has several excellent bulk optoelectronic properties for photovoltaic absorber applications. Here, we report on the defect properties in CuSbS2thin film materials and photovoltaic devices studied using se…
View article: Beneficial effect of post-deposition treatment in high-efficiency Cu(In,Ga)Se2 solar cells through reduced potential fluctuations
Beneficial effect of post-deposition treatment in high-efficiency Cu(In,Ga)Se2 solar cells through reduced potential fluctuations Open
World-record power conversion efficiencies for Cu(In,Ga)Se2 (CIGS) solar cells have been achieved via a post-deposition treatment with alkaline metals, which increases the open-circuit voltage and fill factor. We explore the role of the po…
View article: Effects of Thermochemical Treatment on CuSbS<sub>2</sub> Photovoltaic Absorber Quality and Solar Cell Reproducibility
Effects of Thermochemical Treatment on CuSbS<sub>2</sub> Photovoltaic Absorber Quality and Solar Cell Reproducibility Open
CuSbS2 is a promising nontoxic and earth-abundant photovoltaic absorber that is chemically simpler than the widely studied Cu2ZnSnS4. However, CuSbS2 photovoltaic (PV) devices currently have relatively low efficiency and poor reproducibili…
View article: Wild band edges: The role of bandgap grading and band-edge fluctuations in high-efficiency chalcogenide devices
Wild band edges: The role of bandgap grading and band-edge fluctuations in high-efficiency chalcogenide devices Open
Band-edge effects -- including grading, electrostatic fluctuations, bandgap fluctuations, and band tails -- affect chalcogenide device efficiency. These effects now require more careful consideration as efficiencies increase beyond 20%. Se…