Deliverables

WP1 – Innovation potential and business strategy

WP1 is dedicated to the innovation and business strategy and is crucial for the whole project. It will deal with the data management of IMPRESSIVE, the implementation of IPR management strategy, and the development of a business strategy for the market uptake of the solution. This WP will also take into account the exchange and cooperation with InnoEnergy on this last point.

D1.1 - Data Management Plan

The DMP, accepted by all partners, will detail the data management policy, what data will be generated by the project, how it will be exploited or made accessible, and how it will be curated and preserved.

D1.2 - IPR management status report

First version of IPR and data not subjected to IPR from the consortium.

D1.3 - Final IPR management status report

All the information related to the IPR will be compiled to represent faithfully the status of the project reflections on IPR management and the data not subjected to IPR.

D1.4 - Blueprint of the business strategy for the most promising PV technology

This deliverable will draft a business model for the newly developed PV technology, assessing the market and proposing a first price.

D1.5 - Final business strategy

This deliverable is the final business model of the solution to be delivered in the project.

D1.6 - Cost analysis report and roadmap

Evaluation of cost analysis of complete tandem module including GLY infrastructure cost and definition of future development related to IMPRESSIVE technology for further R&D development and for projecting the market introduction of transparent / colourless photovoltaic beyond the project.

WP2 – Development of UV-PSC

WP2 focuses on the research and development of the transparent PSC. This WP led by EPFL will create an innovative solar cell through the development of new near-UV absorbers and panchromatic pigments for PSCs, the development of wide band gap HTMs, as well as the transparent contacts for the tandem perovskite solar cells.

D2.1 - Near-UV absorbing PSC producing at least VOC = 2V, reaching 6% PCE

Physicochemical characterisation of new perovskite absorber materials that absorb below 450 nm will be described. Most promising materials will be applied in the PSC device fabrication to achieve > 6% PCE.

D2.2 - Thin film panchromatic PSC device showing 75% transmission in the 450–750 nm range

The variation in the spectral and band gap of ABX3 type perovskite materials by varying the A cation, B divalent metal ion and X halides will be detailed in finding efficient panchromatic light absorbers. Transmittance of thin films prepared with the panchromatic light absorbers will be investigated.

D2.3 - Transparent wide band gap organic HTM with an Average Light Transmittance ≥ 85% (between 450 and 700 nm) and resulting in a cell with PCE of at least 6%

Full details on the spectroscopic and chemico-physical properties of a set of selected transparent HTMs will be provided. The selection criteria of the best candidate will be described, and a single specific HTM will be selected as best possible candidate for the DSSC realization. Further possible minor improvements will also be suggested.

D2.4 - Optimisation of inorganic HTMs based on CuSCN or delafossites as the most promising transparent wide band gap HTMs

The structural, morphological, optical and electrical properties of wide band gap inorganic HTMs will be reported.

D2.5 - Sputtered TCO with an Average Light Transmittance ≥ 80% and sheet resistance ≤ 15 ohm/square

Several TCO will be considered and compared such as ITO and AZO and interplay between stability, transparency and sheet resistance will be carried out together with their relation with sputtering parameters such as deposition time, sputtering power and substrate temperature.

D2.6 - Perovskite solar cell according to D7 and D8 perovskite material with a PCE of 6%

PSC devices fabricated with the newly developed UV and panchromatic light absorbers will be investigated by measuring J-V curves and extract the key PV performance metrics. The device physics will be investigated to understand the overall device performance.

WP3 – Development of NIR-DSSC

WP3 develops the NIR-DSSC solar cell. Under the leadership of UNITO, researchers design NIR dyes and optimise their optical and charge separation properties with innovative and well-adapted transparent redox mediator and mesoscopic semi-conducting nanoparticles. CNRS works on the preparation of the electrode materials, redox couple with EPFL and the assembly of the NIR-DSSC device together with its optimisation to reach the objective of 8% power conversion efficiency.

D3.1 - Simulated optical properties of NIR-dyes

All details of the theoretical studies conducted on the candidate dyes for the DSSC will be available. This will include estimates of the absorption wavelength, oscillator strength, and electronic properties of the excited states. The list of methods employed will be given and the best overall methodology will be selected for future calculations.

D3.2 - Simulated electrochemical properties of redox

D3.3 - NIR-dyes with absorption maxima between 700-920 nm and Average Light Transmittance on titania surface ≥ 80%

Full details on the spectroscopic and chemico-physical properties of a set of selected dyes will be provided. The selection criteria of the best candidate NIR absorbing dye will be described, and a single specific dye molecule will be selected as best possible candidate for the DSSC realization. Further possible minor improvements of the dye will also be suggested.

D3.4 - Semi-conductors based on doped TiO2 and SnO2 nanoparticles with high transparency (Eg=3.4-3.6eV) and a conduction band more oxidative than -0.5V vs NHE

Optimization of the photo-anode semi-conductor to combine high transparency and high power conversion efficiency under A.M. 1.5G conditions.

D3.5 - Graphene electrodes with catalytic activity larger than platinum

Graphene and related 2D materials (GRM) will be employed to improve the catalytic properties of the counter-electrode by replacing Pt. graphene based electrode with a catalytic activity larger than the one of the Pt will be demonstrated and applied to the fabrication of the NIR cell.

D3.6 - Transparent (molar extinction coefficient lower than 200 Lmol-1cm-1) redox couples based on cobalt and iron complexes having redox potentials between 1.0 and 0.05V vs NHE

Identification of transparent redox couples with suitable redox energies to apply in UV and panchromatic light absorbing dye sensitized solar cells. Spectral and electrochemical characterization of redox couples will be reported.

D3.7 - Dye-sensitized solar cell with AVT ≥ 75% resulting in a PCE of 8%

Demonstration of 8 % power conversion efficiency of NIR-DSSC in lab-size under A.M. 1.5G conditions.

WP4 – Design, assembly and characterisation of transparent tandem cell

WP4 led by UTV is dedicated to the design and assembly of technologies developed on WP2 and WP3. First, different combinations will be simulated and then assembled following two different strategies. Finally, the tandem cell will be characterised.

D4.1 - Electro-optical simulation data of the tandem solar cells

The tandem device will be designed by considering the target efficiency and transparency. Electro-optical simulation will be performed by using the Multiscale/Multiphysics simulation tools. A first set of simulations, with parameters mainly gathered form the literature, will be performed to guide the experimental realizations of the devices.

D4.2 - Improved electro-optical simulation of tandem solar cells

The Multiscale/Multiphysics softwares will be used on improved models with parameters gathered from the other WEs/tasks- This will permit the final design of the tandem solar cell.

D4.3 - Report on the sealants tests and results

Full details on optical, mechanical and thermal properties of a set of selected sealants will be provided. The selection criteria of the best candidate will be described, and a single specific sealant will be selected as best possible candidate for the DSSC realization. Further possible minor improvements will also be suggested.

D4.4 - Mechanically stacked tandem solar cells

The mechanically stacked tandem device will be fabricated by means of a functional polymer that will be used to glue together the top and bottom cells.

D4.5 - Integrated tandem solar cells

The integrated tandem device will be fabricated by employing a glass with double TCO on the bottom and on the top side of the glass. Top TCO will be achieved by sputtering ITO or AZO. The top cell will be fabricated directly over the bottom cell.

D4.6 - Realisation of 2 channel MPPT for the Tandem Solar Cells

A 4T Maximum Power Point Tracker (4T-MPPT) with two channels will be developed in order to independently maximise the efficiency of top and bottom cell. A DC/DC converter will be used for each channel and a “perturbed and observe” algorithm will be used to find the point of maximum power.

D4.7 - Tandem solar cell reaching PCE of 14% with AVT≥55%

The mechanically stacked tandem and the integrated tandem fabricated in task 5.2 will be characterised by using AM1.5G Sun Simulator and transmittance measurements to demontrate a PCE of 14% with AVT≥55%

WP5 – Materials and device stability assessment and characterisation toolbox

WP5 focuses on the stability assessments of the devices led by CNRS. Running in parallel with all the previous WP (WP2 – WP4), it will be responsible for studying the stability of the produced materials and give feedback to the research and development WPs in order to improve and optimise this parameter. A very complete characterisation toolbox is at the core of the WP5 to analyse all vital functions of UV-PSC and NIR-DSSC by means of time-resolved spectroscopic techniques and also to analyse the chemical structure of the device components upon ageing and post-mortem by means of HPLC/HRMS, GC/MS and MALDI-ToF techniques.

D5.1 - Update 1 on the evaluation of PSC and DSSC stability according to IEC61646 protocol

An intermediate report including an update on the evaluation of PSC and DSSC stability will be provided according to IEC61646 protocol

D5.2 - Update 2 on the evaluation of PSC and DSSC stability according to IEC61646 protocol

An intermediate report will provide an update on the evaluation of PSC and DSSC stability according to IEC61646 protocol

D5.3 - Update 3 on the evaluation of PSC and DSSC stability according to IEC61646 protocol

An intermediate report related to the updated results on the evaluation of PSC and DSSC stability according to IEC61646 protocol

D5.4 - Time-resolved techniques used for the different materials developed and devices monitoring

Pool of time-resolved spectroscopic techniques from ms to fs time scale used to monitor all vital functions of both UV-perovskite solar cells and NIR-dye-sensitized solar cells.

D5.5 - IEC61646 protocol results for PSC

Lab-size UV-PSC passing standard accelerating IEC61646 ageing protocol

D5.6 - IEC61646 protocol results for DSSC

Lab-size NIR-DSSC passing standard accelerating IEC61646 ageing protocol

D5.7 - IEC61646 protocol results for tandem

Module size 200 x 300mm UV-PSC / NIR-DSSC tandem module passing standard accelerating IEC61646 ageing protocol

WP6 – Up-scaling of materials and cells

WP6 is the scale-up of the most relevant materials and also the more relevant version of PSCs and DSSCs developed during the WP 2, 3 & 4. GLY will lead this WP given its industrial ambitions. This upscaling will lead to the production a prototype of the tandem module and indoor and outdoor characterisation will be realised.

D6.1 - Fabrication of upscaled HTM to 2g and large area transparent contact material having ≥ 80 % AVT and ≤ 15 Ω/square resistivity

New synthetic procedures developed for up scaling the best identified HTM materials to 2g scale will be reported. This deliverable will also report FTO layer deposited by vacuum process on module area having > 80% AVT and < 15 ohm/sq. sheet resistivity

D6.2 - Fabrication of upscaled transparent redox couples and additives to allow 500 mL electrolyte production

Elaboration and optimization of >100g scale of the most promising transparent redox couple for NIR-DSSC to allow the production of 500 mL of electrolyte for modules production to GLY.

D6.3 - Fabrication of a PSC module of 200 x 300 mm with 75 % AVT minimum

The up scaling techniques developed by UTV will be applied to fabricate large area PSC module with the materials developed in WP2 up to a substrate size 200 x 300 mm with a transparency AVT > 75 %

D6.4 - Demonstration on a large surface z connected DSSC module of 200 x 300 mm using NIR dyes and transparent redox electrolyte with 75 % AVT minimum

Complete z-interconnected DSSC module of 200 x 300 mm size operating in real conditions exhibiting a transparency AVT > 75%.

D6.5 - Assemble and fabricate tandem PSC and DSSC modules 200 x 300 mm with 55 % AVT minimum

The DSSC 200 x 300 mm module and the 200 x 300 mm PSC module developed in the other tasks will be assembled together to realize the demonstration of fully transparent tandem PV module exhibiting > 55 % AVT

D6.6 - Report on indoor/outdoor characterisation of power conversion efficiencies depending on light power and bifacial illumination

Visual aspects and evaluation of light power to electrical performances in different power conditions and bifacial conditions of the tandem UV-PSC/NIR-DSSC module in outdoor and indoor conditions

WP7 – Sustainability assessment

WP7 led by SMART is dedicated to the LCA and LCC studies concerning best innovative cells developed and the module manufactured by GLY. If dangerous or very impactful materials are highlighted by the LCA, it will be used by the researchers to improve it or potentially even change the material when possible.

D7.1 - First Screening Life Cycle Assessment of the PV modules of this project, ILCD score only identifying “hot spots” which need improvement. Focus is on energy consumption (excel file)

This deliverable will provide elements to respond to the project ethics requirements of WP10. Further information about the possible harm to the environment caused by the research and the measures that will be taken to mitigate the risks will be kept on file.

D7.2 - Second Screening Life Cycle Assessment of the PV modules of this project.

All ILCD impacts and additional PEFCR-PV impacts.

D7.3 - Full Life Cycle Assessment of the PV system with the project device and benchmarking. All ILCD impacts and additional PEFCR-PV impacts.

Full Life Cycle Assessment of the PV system with the project device and benchmarking.

WP8 – Communication & Dissemination of results

The WP8 led by EQY gathers all the communication and dissemination activities. It gathers the strategy of communication and dissemination as well as the realisation of these activities. It includes notably a market study to feed the business strategy of WP1 and to efficiently run the dissemination towards the most relevant targets.

D8.1 - Communication and Dissemination Plan

This report will describe the strategy of communication and dissemination of the project. It will also be used to monitor the impact of these activities

D8.2 - IMPRESSIVE project website

Website dedicated to the project and meant to communicate about it

D8.3 - Report on dissemination activities and outcomes critically assessed

The document will gather all actions undertaken and its impact on dissemination activities related to the project

WP9 – Project Management

The indispensable WP9 is dedicated to the management of IMPRESSIVE. It is led by the coordinator CNRS. This WP will focus on the technical, administrative and financial management of the project in order to ensure its success. It will include notably quality control and day to day management, but also networking activities to link with other projects or initiatives.

D9.1 - Management tools

Creation of a set of tools to help the management of the project, like templates to gather data for periodic reports, timesheets to make sure that financial rules are respected, etc.

D9.2 - Quality plan

The quality plan will describe de procedures to ensure the high quality of deliverables.