# Short Course: Quantum Mechanics and Semiconductors, May 16-17, 2019

## Register online now: Wave UCSB Conference Registration form

University of California - Santa Barbara
May 16, 2019 to May 17, 2019

## Schedule

### UCSB Simons Meetings - May 16, 2019 - Elings Hall 1605

08:30 - 09:00: Welcome Coffee/Registration

09:00 - 09:10: Welcome Word - Shuji Nakamura

09:10 - 10:00: Intro to Basics of Semiconductors I - Claude Weisbuch

10:00 - 10:50: Intro to Basics of Semiconductors II - Claude Weisbuch

10:50 - 11:20: Coffee Break

11:20 - 12:10: Semiconductor Device Simulation ISergey Karpov

12:10 - 13:10: Lunch Break

13:10 - 14:00: Disorder computations through landscape localization I - Marcel Filoche

14:00 - 14:50: Semiconductor Device Simulation IISergey Karpov

14:50 - 15:40: Disorder computations through landscape localization II - Marcel Filoche

15:40 - 16:10: Coffee Break

16:10 - 17:00: LED simulations through landscape localization - Yuhrenn Wu

17:00 - 18:00: Lab visits

WORKSHOP DINNER - Stella Mare's Bristro/La Café Stella

### UCSB Simons Meetings - May 17, 2019 - Elings Hall 1605

08:00 - 08:30: Welcome coffee

08:30 - 09:30: LED simulations through Schrödinger, without effective mass approximation (tight binding)Stefan Schulz

09:30 - 10:30: Non-equilibrium Green function many body - Bernd Witzigmann

10:30 - 11:00: Coffee Break and Poster Session

11:00 - 12:00: Disorder effects in semiconductors: known unknowns and fundamental scales  - Sergei Baranovski

12:00 - 13:00: Lunch Break

13:00 - 14:00: Transport in strong localization - Denis Andrienko

14:00 - 15:00: Transport in strong localization through phonons - Simone Fratini

15:00 - 16:00: Coffee Break and Poster Presentations (See Logistics section for more details)

16:00 - 17:00: Optical effects of semiconductor disorder - Erich Runge

17:00 - 18:00: Discussion and wrap-up session

## Presenters & Topics (Still Under Construction)

Denis Andrienko

### Sergei Baranovski - Disorder effects in semiconductors: known unknowns and fundamental scales

Topics: Fundamental spatial scales of disorder in amorphous organic and inorganic semiconductors as well as in doped crystalline semiconductors; fundamental spatial and energy scales of disorder in semiconductor alloys; fundamental scales of disorder for charge recombination in amorphous inorganic semiconductors.

### Marcel Filoche - Disorder computations through landscape localization I & II

Topics: concepts of the landscape localization (LL) theory and application to semiconductors: Mathematical theory of LL; basic properties of the landscape function u and its inverse W; approximations of energy, wavefunction and its decay (Agmon distance); approximations of energy, wavefunction and its decay (Agmon distance)

Simone Fratini

### Sergey Karpov - Semiconductor device simulation I & II

Topics: elements of inorganic device simulation: Poisson Drift diffusion model; ABC recombination model; p-n junction; heterojunction; finite element methods; application to nitride semiconductors (the SILENCE software).

Erich Runge

Stefan Schulz

### Claude Weisbuch - Introduction to basics of semiconductors I & II

Topics: energy bands, electrons/holes, effective mass approximation (EMA), doping, absorption/recombination, heterostructures/quantum wells, carrier drift/diffusion. Application to nitride semiconductors: internal electric field effects; potential map with disorder in the EMA.

Bernd Witzigmann

### Yuhrenn Wu - LED simulations through landscape localization

Topics: LED simulations through landscape localization; energy landscape for electrons and holes from effective mass approximation; internal fields from spontaneous polarization and strain-induced piezoelectric fields; Drift-diffusion and Poisson equations; comparison of landscape and Schrödinger solutions; meshing of finite elements computation; solution of Schrödinger-DD-Poisson equations for LED by landscape theory.

## Rooms available at the Best Western South Coast Inn

• Be sure to make your reservation under the Wave Simons Conference block to recieve better rates for lodging. Rates available Sunday through Thursday: $149/night and Friday & Saturday:$169/night through our conference hotel portal.
• PI's are encouraged to book and pay for their own travel arrangements directly.  There are a mix of King and Queen rooms available.
• You can reach the Best Western South Coast Inn at 1-805-967-3200, via email (sales@santa-barbara-hotel.com)

## Transportation from LAX to UCSB

• We recommend reserving tickets for and utilizing the Santa Barbara Airbus, you can do so on the Santa Barbara Airbus website.
• The Santa Barbara Airbus departs from the long haul shuttle stops at the lower level at LAX. Be prepared to pay in cash (\$50) if you do not have an advance ticket.

## Poster Presentations

• You can sign up for a poster presentation via the conference registration form.
• Posters must be 4' x 3' (a horizontal orientation is preferred, vertical or horizontal orientated poster accepted)
• There are several printing options available at the University of California - Santa Barbara for poster presenters:
• The CNSI Poster Printer is available in the same building as the conference. Printing instructions and contact information can be found on the California NanoSystems Institute website.
• The ITST's Esmeralda Printer is located in Building 937, next to Broida Hall. A UCSB Recharge account is required for use, mnore information may be found on the ITST website.