Perovskite solar cells based on small molecule hole transporting materials

Abstract

The hole transporting materials in perovskite solar cells have received significant attention in recent years as a promising materials capable of developing high performance photovoltaic devices at low cost.

Diarylamino-substituted tetraarylethene (TAE) as an efficient and robust hole transport material for 11% methyl ammonium lead iodide perovskite solar cells

“…[5][6][7][8] In contrast, the number of small molecules that are used in MAPI perovskite solar cells as HTM grows much faster. 9,10 In this communication, we disclose the synthesis of a novel small organic molecule and its application as HTM in MAPI perovskite solar cell without the need of "dopants" (oxidants) to achieve solarto-electrical current efficiencies of 11% under 1 sun conditions. We analysed first the UV-Visible and luminescence spectra of TAE-1 in solution, as shown in Figure 2.…”

Two-dimensional organic-inorganic hybrid perovskite: from material properties to device applications

“…Early in the 1970s, researchers had published papers about 2D perovskite materials in theoretical modelling [29][30][31][32][33][34] [35][36][37]. One of the two molecules must be sufficiently small to satisfy the tolerance limits, thus steadily existing in the gap of metal-halogen octahedron frame, named as small organic cation (A).…”

A multifunctional poly-N-vinylcarbazole interlayer in perovskite solar cells for high stability and efficiency: a test with new triazatruxene-based hole transporting materials

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Besides unique optical and electrical properties of the hybrid organo-lead trihalide CH 3 NH 3 PbX 3 (X=Cl, Br, or I) perovskites, 19 the optimization of the cell structure and different layer morphology plays a key role in achieving high performance, which is strongly related to the material composition and processing conditions. [20][21][22] The long-term stability remains a great challenge for PSCs, particularly when subjected to environmental stresses such as moisture, 23 under which the device deteriorates quickly.…”