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- Lin-Wang Wang, Marco Califano, Alex Zunger, Alberto Franceschetti
- Physical review letters
- 2003

Auger rates are calculated for CdSe colloidal quantum dots using atomistic empirical pseudopotential wave functions. We predict the dependence of Auger electron cooling on size, on correlationâ€¦ (More)

- Marco Califano
- ACS nano
- 2009

A complete and detailed theoretical investigation of the main processes involved in the controversial detection and quantification of carrier multiplication (CM) is presented, providing a coherentâ€¦ (More)

- Andrew Sills, Marco Califano
- Physical chemistry chemical physics : PCCP
- 2015

Nanorod solar cells have been attracting a lot of attention recently, as they have been shown to exhibit a lower carrier multiplication onset and a higher quantum efficiency than quantum dots withâ€¦ (More)

- Marco Califano
- Physical chemistry chemical physics : PCCP
- 2009

The experimental determination of the carrier multiplication (CM) time constant is complicated by the fact that this process occurs within the initial few hundreds of femtoseconds after excitationâ€¦ (More)

- Jacek Jasieniak, Marco Califano, Scott E. Watkins
- ACS nano
- 2011

Through the use of photoelectron spectroscopy in air (PESA), we investigate the size-dependent valence and conduction band-edge energies of CdSe, CdTe, PbS, and PbSe semiconductor quantum dots (QDs).â€¦ (More)

- Marco Califano, Alberto Franceschetti, Alex Zunger
- Nano letters
- 2005

Using atomistic, semiempirical pseudopotential calculations, we show that if one assumes the simplest form of a surface state in a CdSe nanocrystal--an unpassivated surface anion site--one canâ€¦ (More)

- Joonhee Michael An, Marco Califano, Alberto Franceschetti, Alex Zunger
- The Journal of chemical physics
- 2008

In solids the phonon-assisted, nonradiative decay from high-energy electronic excited states to low-energy electronic excited states is picosecond fast. It was hoped that electron and hole relaxationâ€¦ (More)

- Marco Califano
- ACS nano
- 2011

Photocharging has been suggested recently as the explanation for the spread of carrier multiplication yields reported by different groups. If this hypothesis can be plausible in the case of PbSe, itâ€¦ (More)

- Marco Califano, Francisco Manuel GÃ³mez-Campos
- Nano letters
- 2013

Size tunability of the optical properties and inexpensive synthesis make semiconductor nanocrystals one of the most promising and versatile building blocks for many modern applications such asâ€¦ (More)

- Marco Califano
- ACS nano
- 2015

Recent experimental studies have identified at least two nonradiative components in the fluorescence decay of solutions of CdTe colloidal quantum dots (CQDs). The lifetimes reported by differentâ€¦ (More)