2023
DOI: 10.1002/aenm.202200796
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Ideality Factor Mapping of Back‐Contact Perovskite Solar Cells

Abstract: They enjoy high optical absorption, nearideal band gaps, high carrier mobilities, and long carrier diffusion lengths. [1][2][3][4][5][6] Meanwhile, this class of materials consists of Earth-abundant elements and is solution-processable, making it a low-cost material. [7,8] At present, sandwich structure perovskite solar cells (PSC) have demonstrated power conversion efficiencies (PCE) as high as 25.7%, only 0.4% behind monocrystalline silicon. [9] However, there has been growing interest in PSC with a back-con… Show more

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Cited by 8 publications
(3 citation statements)
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“…We notice that hysteresis exists for both target and control devices, as indicated by the J–V characteristics between the reverse and the forward scans (Supporting Information, Figure S13), and the stabilized power output (SPO) measurements (Supporting Information, Figure S14). We speculate that this hysteresis is likely to be associated with the imperfect interfaces between the perovskite films and the charge selective layers, [4, 59] and/or ion migration due to the complex built‐in electric field of the back‐contact PSCs, [17, 60, 61] both of which require further investigation.…”
Section: Resultsmentioning
confidence: 99%
“…We notice that hysteresis exists for both target and control devices, as indicated by the J–V characteristics between the reverse and the forward scans (Supporting Information, Figure S13), and the stabilized power output (SPO) measurements (Supporting Information, Figure S14). We speculate that this hysteresis is likely to be associated with the imperfect interfaces between the perovskite films and the charge selective layers, [4, 59] and/or ion migration due to the complex built‐in electric field of the back‐contact PSCs, [17, 60, 61] both of which require further investigation.…”
Section: Resultsmentioning
confidence: 99%
“…44 The ideality factor of the control devices suggests a dominance of trap-assisted monomolecular recombination, whereas PMMA:MX passivated non-radiative recombination. 45 Thus, the decrease in non-radiative recombination after the introduction of MXenes was reflected in the enhancement of V oc for PMMA:MX based devices, as shown in Table 1. n exceeding 2 for the PMMA device may be related to tail states 46 and transport losses 47 due to the high resistivity of the polymer and consequent reduced charge transport.…”
Section: Pscs Electrical Characterizationmentioning
confidence: 92%
“…In recent reports, some researchers employ finite element method (FEM) to simulate the stress distribution in device structures. [ 60 , 61 , 62 , 63 , 64 ] The FEM uses approximate mathematical methods to simulate real physical systems. Through simple and interacting elements, a finite number of unknowns is used to approximate a real system with infinite unknowns.…”
Section: Strain In F‐pscsmentioning
confidence: 99%