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A two-fold engineering approach based on Bi2Te3 flakes towards efficient and stable inverted perovskite solar cells

Tsikritzis, Dimitris (författare)
Hellen Mediterranean Univ, Dept Elect & Comp Engn, Iraklion 71410, Crete, Greece
Rogdakis, Konstantinos (författare)
Hellen Mediterranean Univ, Dept Elect & Comp Engn, Iraklion 71410, Crete, Greece
Chatzimanolis, Konstantinos (författare)
Hellen Mediterranean Univ, Dept Elect & Comp Engn, Iraklion 71410, Crete, Greece
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Petrovic, Milos (författare)
Hellen Mediterranean Univ, Dept Elect & Comp Engn, Iraklion 71410, Crete, Greece
Tzoganakis, Nikos (författare)
Hellen Mediterranean Univ, Dept Elect & Comp Engn, Iraklion 71410, Crete, Greece
Najafi, Leyla (författare)
Ist Italiano Tecnol, Graphene Labs, Via Morego 30, I-16163 Genoa, Italy; BeDimensional Spa, Via Albisola 121, I-16163 Genoa, Italy
Martin-Garcia, Beatriz (författare)
Ist Italiano Tecnol, Graphene Labs, Via Morego 30, I-16163 Genoa, Italy; CIC nanoGUNE, Donostia San Sebastian 20018, Spain
Oropesa-Nuñez, Reinier (författare)
Uppsala universitet,Fasta tillståndets fysik,BeDimensional Spa, Via Albisola 121, I-16163 Genoa, Italy
Bellani, Sebastiano (författare)
Ist Italiano Tecnol, Graphene Labs, Via Morego 30, I-16163 Genoa, Italy; BeDimensional Spa, Via Albisola 121, I-16163 Genoa, Italy
Del Rio Castillo, Antonio Esau (författare)
Ist Italiano Tecnol, Graphene Labs, Via Morego 30, I-16163 Genoa, Italy; BeDimensional Spa, Via Albisola 121, I-16163 Genoa, Italy
Prato, Mirko (författare)
Ist Italiano Tecnol, Mat Characterizat Facil, Via Morego 30, I-16163 Genoa, Italy
Stylianakis, Minas M. (författare)
Hellen Mediterranean Univ, Dept Elect & Comp Engn, Iraklion 71410, Crete, Greece
Bonaccorso, Francesco (författare)
Ist Italiano Tecnol, Graphene Labs, Via Morego 30, I-16163 Genoa, Italy; BeDimensional Spa, Via Albisola 121, I-16163 Genoa, Italy
Kymakis, Emmanuel (författare)
Hellen Mediterranean Univ, Dept Elect & Comp Engn, Iraklion 71410, Crete, Greece
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 (creator_code:org_t)
2020
2020
Engelska.
Ingår i: Materials Advances. - : Royal Society of Chemistry (RSC). - 2633-5409. ; 1:3, s. 450-462
Relaterad länk:
https://doi.org/10.1...
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Perovskite solar cells (PSCs) are currently the leading thin-film photovoltaic technology owing to their high power conversion efficiency (PCE), as well as their low-cost and facile manufacturing process. Two-dimensional (2D) materials have been reported to improve both the PCE and the stability of PSCs when incorporated across the device's layered configuration. Hereby, a two-fold engineering approach is implemented in inverted PSCs by using ultra-thin Bi2Te3 flakes, i.e.: (1) to dope the electron transport layer (ETL) and (2) to form a protective interlayer above the ETL. Thorough steady-state and time-resolved transport analyses reveal that our first engineering approach improves the electron extraction rate and thus the overall PCE (+6.6% vs. reference cells), as a result of the favourable energy level alignment between the perovskite, the ETL and the cathode. Moreover, the Bi2Te3 interlayer, through the second engineering approach, facilitates further the electron transport and in addition protects the underlying structure against chemical instability effects, leading to enhanced device performance and stability. By combining the two engineering approaches, our optimised PSCs reach a PCE up to 19.46% (+15.2% vs. reference cells) and retain more than 80% of their initial PCE, after the burn-in phase, over 1100 h under continous 1 sun illumination. These performances are among the highest reported in the literature for inverted PSCs.

Ämnesord

NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

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