Extraction of Recombination Properties from Lifetime Data

Janssen, G.J.M.; Wu, Yu Cheng; Tool, Kees; Romijn, I.G.; Fell, Andreas

doi:10.1016/j.egypro.2016.07.034

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…23 (see also Ref. 24), improve as iV oc improves, justifying the use of iV oc as the main metric in this letter. Dynamic SIMS was performed using a Cameca IMS 7f instrument with low-energy 1.5 keV O 2 þ primary ions for improved depth resolution, and profiles were quantified with implanted Si standards.…”

mentioning

confidence: 57%

Hydrogen passivation of poly-Si/SiOx contacts for Si solar cells using Al2O3 studied with deuterium

Schnabel

Loo

Nemeth

et al. 2018

Applied Physics Letters

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mentioning

confidence: 57%

Hydrogen passivation of poly-Si/SiOx contacts for Si solar cells using Al2O3 studied with deuterium

Schnabel

Loo

Nemeth

et al. 2018

Applied Physics Letters

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“…By analyzing the injection-dependent carrier lifetime 𝜏(Δn), the contact recombination parameter (J 0c ) and the implied open-circuit voltage (iV OC , which is similar to the quasi-Fermi level splitting) at one sun can be determined. [50,51] The results of PCD measurements are shown in Figure 2a, and its extracted parameters are summarized in Table 1. The results show no significant change after 2PACz deposition on the a-Si:H(i)/c-Si/a-Si:H(i) structure.…”

Section: Resultsmentioning

confidence: 99%

Efficient Silicon Solar Cells through Organic Self‐Assembled Monolayers as Electron Selective Contacts

Prasetio,

Pradhan,

Dally

et al. 2023

Advanced Energy Materials

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Effective charge carrier‐selective contacts are a crucial component of high‐performance crystalline silicon (c‐Si) solar cells. Organic materials deposited via self‐assembly on the c‐Si surface are promising candidates for simplified, scalable, and cost‐effective processing of charge extraction layers. This study investigates the application of nPACz self‐assembled monolayers (SAMs), based on carbazole and phosphonic acid groups, where n (= 2, 4, or 6) is the aliphatic chain length, to facilitate electron extraction in c‐Si solar cells by tuning the work function of aluminum (Al) at the rear contact. So far, these SAM molecules are mainly applied as the hole‐selective layer in state‐of‐the‐art perovskite and organic solar cells, via anchoring on a metal oxide electrode. Here, by inserting 2PACz between amorphous silicon passivated c‐Si and Al, an electron‐selective contact with a contact resistivity of 65 mΩ cm2 is achieved and a power conversion efficiency of 21.4% with an open‐circuit voltage of 725 mV and a fill factor of 79.2% is demonstrated. Although the 2PACz displays some instability in this study, its initial performance is comparable to those achieved with conventionally used n‐type amorphous silicon. This study highlights the potential of solution‐processable organic SAMs in forming carrier‐selective contacts for c‐Si heterojunction solar cells.

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“…Suns V oc provides the light current-voltage characteristics of the diode without the effects of series resistance [38]. This is calculated as given in [41] …”

Section: Simulation Resultsmentioning

confidence: 99%

Simulation Results: Optimization of Contact Ratio for Interdigitated Back-Contact Solar Cells

Budhraja

Devayajanam

Basnyat

2017

International Journal of Photoenergy

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In the fabrication of interdigitated back contact (IBC) solar cells, it is very important to choose the right size of contact to achieve the maximum efficiency. Line contacts and point contacts are the two possibilities, which are being chosen for IBC structure. It is expected that the point contacts would give better results because of the reduced recombination rate. In this work, we are simulating the effect of contact size on the performance of IBC solar cells. Simulations were done in three dimension using Quokka, which numerically solves the charge carrier transport. Our simulation results show that around 10% of contact ratio is able to achieve optimum cell efficiency.

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Extraction of Recombination Properties from Lifetime Data

Cited by 8 publications

References 8 publications

Hydrogen passivation of poly-Si/SiOx contacts for Si solar cells using Al2O3 studied with deuterium

Hydrogen passivation of poly-Si/SiOx contacts for Si solar cells using Al2O3 studied with deuterium

Efficient Silicon Solar Cells through Organic Self‐Assembled Monolayers as Electron Selective Contacts

Simulation Results: Optimization of Contact Ratio for Interdigitated Back-Contact Solar Cells

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