The performance of 3D perovskite solar cells is limited

The gap

Evidence profile

Sourced from the stated research gap and future work of the source papers, classified as general, drawn from work published between 2024 and 2026, spanning 2 journals. Those papers have been cited 153 times in total.

Supporting evidence — 3 representative gaps

• Diamine-Mediated Synergistic Engineering of Orientation and Interfacial Field of 3D/1D Heterojunctions for Efficient Perovskite Photovoltaics (2026) · Nano-Micro Letters · doi

  The performance of 3D perovskite solar cells is limited by interfacial non-radiative recombination and instability. Low-dimensional interlayers can passivate surface and grain boundary defects, but their heterogeneous n-values and quantum-well confinement often impede charge transport.

  generalstated research gap
  Keywords: performance perovskite solar cells limited interfacial non-radiative recombination
• Shallow defects and variable photoluminescence decay times up to 280 µs in triple-cation perovskites (2024) · Nature Materials · cited 153× · doi

  We show that typical triple-cation perovskite layers, layer stacks and solar cells are strongly affected by shallow defects that manifest themselves in steady-state and transient PL data. Detrapping from such shallow traps then leads to extremely long decay times of hundreds of microseconds that can only be measured using a technique with an extremely low repetition rate. These shallow traps are less problematic for device performance than deeper traps with given SRH lifetimes of τn and τp but are still dominating the steady-state properties. Furthermore, the signatures of shallow traps in transient and steady-state experiments are difficult to distinguish from radiative recombination, which may have contributed to the wide spread of reported values for the radiative recombination coefficient in lead halide perovskites35–40 as well as the frequent reports on non-radiative contributions to the quadratic recombination coefficient9,12,38,39,41. Furthermore, the work highlights that the often used approximations of the SRH recombination rate must be applied with caution and should not be considered as the default recombination model. The work also shows that the absolute value of the PL decay time extracted from single- or multiexponential fits to low dynamic range fractions of the complete datasets can lead to highly misleading values as decay times may vary over orders of magnitude (tens of nanoseconds to hundreds of microseconds) depending on the excitation density and the repetition rate of the PL set-up. Thus, considering the decay time observed from transient experiments on halide perovskites to be a single number is one of the key fallacies the community needs to overcome to gain insights on recombination dynamics in these materials. A possible alternative to effective decay times for decays that rather resemble a power law instead of an exponential decay is the determination of an effective recombination coefficient.

  generalfuture workevidence 5/5
  Keywords: recombination decay shallow traps steady state transient times rate coefficient extremely hundreds microseconds repetition experiments
• Taming Lattice Strain via Buried Interface Engineering for Reverse-Bias Resilient Perovskite Solar Cells (2026) · Nano-Micro Letters · doi

  The operational stability of inverted perovskite solar cells remains a critical challenge. Intrinsic degradation mechanisms originating within the perovskite bulk itself remain less understood. There is a need for effective strategies to alleviate intrinsic lattice strain and improve device stability.

  generalstated research gapevidence 5/5
  Keywords: operational stability inverted perovskite solar cells remains critical

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