Charge Transport in Halide Perovskite Single Crystals: Experimental and Theoretical Perspectives

Abstract

Halide perovskite materials feature strong optical absorption, light carrier masses and, as a consequence, high charge‐carrier mobility, making them one of the candidates for next‐generation optoelectronic devices. This interesting class of materials exhibits unconventional properties that cannot be readily rationalized by traditional concepts. In this regard, single‐crystals of halide perovskites represent an ideal test bench to better understand the intrinsic properties of the material, building the foundation for further investigations of polycrystalline films and related nanoarchitectures. In this Minireview, we analyze charge carrier transport in organic halide perovskite single crystals, summarizing the current literature insights on this matter from theoretical and experimental perspectives.

CsPbBr3 deposited by laser ablation: effects of post-growth aging, oxygen adsorption and annealing on film properties

“…The three-component all-inorganic lead halide perovskite CsPbBr 3 system has witnessed increasing interest from researchers around the global community following its first successful preparation in nano-crystalline form in 2015 [1]. This successful spreading of interest in applications relies on the low cost and superior photophysical properties of CsPbBr 3 , including higher stability against high humidity and thermal environmental conditions compared with organic and hybrid perovskites, high chemical stability, high melting point (> 500 °C), large absorption coefficient, wide color gamut, high stability against photobleaching, robustness against humid environments, high photoluminescence quantum yields and narrow emission linewidths, photoluminescence emission tunable by changing the composition, high electron mobility and long electron life time, high defect tolerance, and low-threshold lasing [2][3][4][5][6][7]. Nowadays, all-inorganic CsPbBr 3 are exploited in numerous applicative fields [8][9][10][11][12], including photovoltaics [13][14][15][16], lasing [17], light-emitting diodes [18,19], photodetectors [20], colorconversion layers [21], high-energy radiation detection [22], clinical radiotherapy [23], and scintillators [24].…”

Monocrystalline Methylammonium Lead Halide Perovskite Materials for Photovoltaics

“…[208][209][210][211] Another approach is to integrate additional layers between the perovskite and CTL. Such interfacial layers can help optimize charge collection by adding new energy levels at the interfaces which reduce interfacial losses commonly observed at large energy offsets interfaces, [28,82,159,160,212,213] and enabled for higher SC solar cell performance (Figure 30B). [6,81,93,103] Some examples include PS, Ga 2 O 3 , LiF, PMMA, or Phenethylammonium Iodide (PEAI), BCP buffer layers, perovskite quantum dots, PFN-P2, PCBM, C 60 among many other.…”

Synthesis of different organic ammonium-based bismuth iodide perovskites for photodetection application

“…Organic-inorganic hybrid perovskites (OIHPs) have shown a great interest in various optoelectronic applications owing to their unique characteristics such as high absorption coefficient, 1 tunable bandgap, [2][3][4][5][6] high carrier mobility, [7][8][9][10][11] and lowcost preparation. [12][13][14][15][16] Lead halide perovskites research has received a lot of attention in the scientic community recently.…”