23 Jul 2015
An bug that prevented EDNA 2 from converging for very steep diffusions was fixed. Thanks Anand Krishnan (ASU) for reporting it.
10 Jul 2015
PVL Newsletter #17 published, describing changes to the website in May/Jun 2015.
7 Jul 2015
Minor upgrade to PC1Dmod released by Halvard Haug (IFE). It converges more often for solar cells incorporating internal and external elements.
3 Jul 2015
Band gap calculator updated to contain the Yan–Cuevas inputs for band gap narrowing in B-doped silicon (see its About tab).
1 Jul 2015
Wafer ray tracer upgraded with a faster algorithm to determine generation profiles. The resulting G(ζ) is also smoother for textured wafers.
20 Jun 2015
PV Lighthouse website receives its 100,000th unique visitor.
15 Jun 2015
PVL presents PV Factory at the IEEE photovoltaic specialists conference in New Orleans.
10 Jun 2015
Quokka manual expanded to include a description of its underlying physics.
1 Jun 2015
PV Factory expanded to include a new production line. Sponsored by BT Imaging, the production line showcases photoluminescence imaging.
24 May 2015
Refractive index data for Mo, CdS, ZnO, ZnO:Al and Cu2ZnSnSe4 (CZTSe) added to the RI library. Thanks to Marcos Soldera (FAIN-UNCo) for forwarding the reference.
13 May 2015
PVL Newsletter #16 published, describing changes to the website in Mar/Apr 2015.
9 May 2015
Refractive index data for MoO3 added to the RI library. Thanks to Luis Guillermo Gerling (UPC) for forwarding the reference.
14 Apr 2015
A bug in the wafer ray tracer was corrected. Until now, if a rear reflector was added, assigned as Lambertian, and removed, the reflection distribution of the rear surface would be incorrectly treated as Lambertian instead of specular. Thanks Tim Frijnts (Helmholtz Berlin) for reporting this bug.
14 Apr 2015
An option to simulate fixed surface charge was added to EDNA 2.
29 Mar 2015
Quokka manual released by Andreas Fell (ANU).
24 Mar 2015
Fixed a bug in the sheet resistance calculator in which the temperature was treated as Kelvin irrespective of whether the units were selected to be celcius or Kelvin. Thanks to the anonymous user for reporting the bug.
23 Mar 2015
Version 6.1 of PC1Dmod released by Halvard Haug (IFE). It contains more physical models and is embedded in the traditional PC1D user interface.
17 Mar 2015
A bug in the wafer ray tracer was corrected. Before now, a ray that intersected an inverted pyramid on the rear would escape without attributing its intensity to a loss mechanism. Thanks Steven Limpert (ASU) for spotting the bug.
13 Mar 2015
PVL Newsletter #15 published, describing changes to the website in Jan/Feb 2015.
12 Mar 2015
The option to use Schindler's mobility model was added to most semiconductor calculators.
9 Mar 2015
Griddler 2.0 released for Windows. Griddler 2.0 provides a fast and sophisticated way to simulate a full-area solar cell with any metalisation pattern.
3 Mar 2015
New version of Quokka 2 released (ver 2.2.4). It contains additional options for optical models and minor bug fixes. See Quokka 2 change log for details.
16 Feb 2015
Table in the Output Data tab of the mobility calculator fixed so that it is updated after changes to the inputs on the Calcultor tab.
2 Feb 2015
Ben Sudbury joins PV Lighthouse to take care of business development.
30 Jan 2015
Maximum number of busbars in the grid calculator increased from 10 to 100. A higher number of busbars increases the time required to generate the grid image. That problem can be circumvented by hiding the image.
28 Jan 2015
Added link to Paul Basore's cost points calculator for cells and modules.
17 Jan 2015
A bug in the wafer ray tracer that occurred for non-normally incident illumination was corrected. Before now, the spectral outputs (but not the integrated outputs) neglected a 1/cos(θ) dependence on the incident angle.
11 Jan 2015
PVL Newsletter #14 published, describing changes to the website in Nov/Dec 2014.
11 Jan 2015
PV Factory released. A collaboration with UNSW, PV Factory simulates the production of silicon solar cells.
8 Jan 2015
Radiative recombination model by Nguyen et al. added to EDNA 2 and the recombination calculator. Thanks Hieu Nguyen (ANU) for sending us the reference.
2 Jan 2015
Refractive index data for c-Si published by Nguyen et al. added to the RI library. Data, including temperature coefficients, supplied by Hieu Nguyen (ANU).
18 Dec 2014
Refractive index data for a nanocrystalline perovskite, CH3NH3PbI3, added to the RI library. Data supplied by Philipp Löper (EPFL).
8 Dec 2014
Refractive index data for zinc sulfide (hexagonal) added to the RI library. Data from Palik's Handbook of Optical Constants.
23 Nov 2014
Sneak preview of the solar cell library released to accompany Andreas Fell's talk at the 6th World PV conference in Kyoto. It plots IV and QE data for six types of solar cells.
16 Nov 2014
New version of Quokka 2 released. It contains improved QE simulations and minor bug fixes. See Quokka 2 change log for details.
14 Nov 2014
SARAH posted on PV Lighthouse by Milan Padilla, Christian Reichel and Pierr Saint-Cast. SARAH is a 2D analytical model of an interdigitated back-contact solar cell.
7 Nov 2014
PVL Newsletter #13 published, describing changes to the website in Sep/Oct 2014.
7 Nov 2014
Ingot impurity calculator released. It determines the resistivity and lifetime of a silicon ingot containing any number of impurities.
3 Nov 2014
Link posted to Ronald Naber's new simulator for solar cell production lines, DESC Pro
24 Oct 2014
PV Lighthouse receives its 100,000th visit.
10 Oct 2014
The wafer ray tracer was upgraded so that its interface refreshes after every set of rays are traced.
3 Oct 2014
SCiDA Pro updated with improved user interface. SCiDA Pro is a computer program for analysing data sets from solar cell production lines.
27 Sep 2014
Radiative recombination model by Altermatt added to EDNA 2 and the recombination calculator. Thanks Armin Richter (Fraunhofer ISE) for forwarding the necessary code.
24 Sep 2014
Refractive index data for hafnium oxide added to the RI library. Data supplied by Claudiu Laru (IMEC).
10 Sep 2014
PVL Newsletter #12 published, describing changes to the website in Jul/Aug 2014.
9 Sep 2014
PVL receives 481 visits in a day—wowee.
6 Sep 2014
SCiDA Pro updated to include custom data labels and Korean translations. SCiDA Pro is a computer program for analysing data sets from solar cell production lines.
22 Aug 2014
Bug in OPAL 2 corrected. The bug arose when using custom data with wavelength units other than Å or nm. See OPAL's version history for details.
21 Aug 2014
PVL receives 347 visits in a day—a new high.
18 Aug 2014
The free-carrier absorption calculator was updated to include a recently publshed parameterisation by Baker-Finch et al.
16 Aug 2014
The wafer ray tracer was overhauled to make it faster to prepare simulations. Its output figure was made interactive.
14 Aug 2014
The beta version of "PV Factory" goes live. It is reserved for UNSW students and academics until 1 Jan 2015.
10 Aug 2014
Two bugs in the wafer ray tracer were fixed. Both arose when thin films were assigned to the rear surface. See the ray tracer's welcome page for details.
27 July 2014
SCiDA Pro posted on PV Lighthouse by Ronald Naber. SCiDA Pro is a computer program for analysing data sets from solar cell production lines.
10 July 2014
PVL Newsletter #11 published, describing changes to the website in Apr/Jun 2014.
10 Jul 2014
Quokka version 2.2.1 released. Quokka is a 2D/3D simulation program for solar cells.
7 Jul 2014
Learning curve calculator released. It determines the industry's learning rate and predicts future module prices.
27 Jun 2014
OPAL 2 expanded to include two additional light-trapping models.
24 Jun 2014
Korean translations added to the resistivity calculator by Dongchul Suh (GFC–MES).
15 Jun 2014
Added help files and change log to cmd-PC1D 6.0.
9–13 Jun 2014
PVL talks on optical loss analysis and iron contamination presented at the 40th IEEE PV Specialists Conference, Denver.
25 May 2014
Bug removed from EDNA 2 that was introduced on 17-May-2014. This bug led to a gross underestimate of J0E for heavy diffusions.
17 May 2014
Expanded the band gap calculator to include the recent band gap narrowing (BGN) model of Yan and Cuevas. Its About tab was also expanded to explain the differences between BGN models.
13 May 2014
The simulation overview was redesigned and now includes the calculators and a few new programs.
9 May 2014
PVL Newsletter #10 published, describing changes to the website in Mar/Apr 2014.
1 May 2014
Bug fixed in wafer ray tracer. Simulations of wafers with Labertian rear reflectors or texture are now more accurate.
20 Apr 2014
Chinese and German translations added to the spectral mismatch calculator by Yimao Wan (ANU) and Karola Rühle (Univ Freiburg).
25 Mar 2014
cmd-PC1D 6.0 now available for download. This version of PC1D contains Fermi-Dirac statistics and up-to-date models for Auger recombination, mobility, and band-gap narrowing.
23 Mar 2014
Quokka 2.2 and its settings file generator released. Quokka is a 2D/3D simulation program for solar cells.
23 Mar 2014
OPAL 2 expanded to allow customised spectra, refractive index and IQE data. Output can also be downloaded in the format required by Quokka 2.
12 Mar 2014
Wafer ray tracer released. It conducts a full ray tracing simlation of a textured wafer coated with thin films.
12 Mar 2014
PVL Newsletter #9 published, describing changes to the website in Jan/Feb 2014.
3 Mar 2014
PV Lighthouse in the news for its contribution to the design and fabrication of 24.4% solar cell: pv magazine article.
17 Feb 2014
Spectral mismatch calculator released. It determines a cell's short-circuit current density under various spectra and can be used to quantify experimental error due to spectral mismatch.
3 Feb 2014
Project to create a Virtual Production Environment (VPE) commences. The VPE will be an online program that simulates the manufacture of commercial Si solar cells. Project partners: UNSW, ASU and us.
28 Jan 2014
Refractive index data for amorphous silion oxide added to the RI library. Data measured and supplied by Johannes Seif (EPFL).
24 Jan 2014
Recent versions of Chrome have a bug that prevents drop-down lists functioning correctly. To fix: right click chrome icon, select properties, and check 'disable visual themes' on the compatability tab.
16 Jan 2014
PV Lighthouse partners with PVEducation.Org.
8 Jan 2014
PVL Newsletter #8 published. It describes the updates made to PV Lighthouse in Nov/Dec 2013 and plans for 2014.
26 Dec 2013
PV Lighthouse website receives its 20,000th unique visitor.
16 Dec 2013
Thermal velocity calculator released. It determines the thermal velocity of electrons and holes in crystalline silicon.
4 Dec 2013
Dopant ionisation calculator released. It determines the fraction of dopant atoms that are ionised in crystalline silicon.
28 Nov 2013
Griddler released for Windows. Griddler provides a fast and sophisticated way to determine the resistive losses in any metalisation pattern.
24 Nov 2013
Quokka 2.1 released for Windows and Linux. Quokka is a 2D/3D simulation program for solar cells. Version 2.1 expands on the optical options.
13 Nov 2013
Spectrum library created. Visit the library to analyse, compare and download the spectral intensity of common spectra (e.g., AM1.5g, AM0, photoconductance flash).
8 Nov 2013
PVL Newsletter #7 published. It describes the updates made to PV Lighthouse in Sep/Oct 2013.
1 Nov 2013
Our new solar spectrum calculator was released. It generates the direct and diffuse spectrum that falls on module under clear-sky atmospheres.
28 Oct 2013
Quokka 2 released. Quokka 2 is a computer program that rapidly simulates solar cells in 2D and 3D.
16 Oct 2013
Chinese translations added to the resistivity calculator by Yimao Wan (ANU).
2 Oct 2013
OPAL 2.4 (beta) released. It allows the user to upload experimental n & k data, and to optimise film thickness for a solar cell's experimental IQE.
1 Sep 2013
Korean translations added to the sheet resistance and equivalent-circuit calculators by Dongchul Suh (ANU).
26 Aug 2013
The PV Lighthouse website receives a face lift. Graphic design by Garnish Garden.
9 Aug 2013
PV Lighthouse welcomes Simeon Baker-Finch as its third employee. Expect an acceleration in the roll out of our solar cell calculators.
18 Jul 2013
Chinese translations added to the sheet resistance calculator by Yimao Wan (ANU).
3 Jul 2013
EDNA 2 is released as an online calculator. EDNA 2 simulates the behaviour of a region of heavily doped silicon, such as an emitter or a back-surface field. It can be used to determine the J0E of an arbitrarily doped emitter.
18 Jun 2013
PV Lighthouse's Mal Abbott presents a paper at the IEEE's 39th PV conference in Tampa. The paper, a collaboration with Dupont, evaluates the recombination losses in industrial phosphorus emitters.