An optimized perovskite solar cell designs for high conversion efficiency

Accelerating the Discovery of Multilayer Nanostructures with Analytic Differentiation of the Transfer Matrix Equations

“…Each optical cavity contained alternating layers of titanium dioxide (TiO 2 ) and aluminum nitride (AlN) with AlN always in contact with the silver back mirror. The global optimum geometry for the 2-layer case was determined to be 15 In the 2-layer optimization, we bound the thicknesses of each of the anti-reflective layers to be between 0.01 and 400.01 nm and we confirm the location of global optimum by a brute force search between these bounds with a resolution of 1 nm (Figure 3(a) in the main text). For the 3-and 4-layer cases, we bound the layers to be between 0.01 and 60.01 nm and we confirm the location of global optimum using a resolution of 1.5 nm and 2.0 nm for the 3-and 4-layer case, respectively.…”

“…Designing materials on the nanoscale can have a profound impact on how optical energy flows through those materials, which can in turn dramatically improve the performance of nanostructured materials for energy-related applications including solar and (solar)thermophotovoltaic energy conversion [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] , radiative cooling [18][19][20][21][22][23] , incandescent lighting [24][25][26][27] , among others. Multilayer planar nanomaterials, stacks of flat materials with nanoscale thickness, have emerged as promising candidates for such applications because they present highly tunable optical and thermal emission properties and are relatively easy to fabricate.…”

Accelerating the discovery of multilayer nanostructures with analytic differentiation of the transfer matrix equations

“…Each optical cavity contained alternating layers of titanium dioxide (TiO 2 ) and aluminum nitride (AlN) with AlN always in contact with the silver back mirror. The global optimum geometry for the two-layer case was determined to be 15 In the two-layer optimization, we bound the thicknesses of each of the antireflective layers to be between 0.01 and 400.01 nm and we confirm the location of global optimum by a brute force search between these bounds with a resolution of 1 nm [ Fig. 3(a)].…”

“…(17); (ii) compute the gradients of the reflectivity and transmissivity amplitudes via Eqs. (14) and (15), and the gradients of the reflectivity and transmissivity via Eqs. (10) and (11);…”

“…Designing materials on the nanoscale can have a profound impact on how optical energy flows through those materials, which can in turn dramatically improve the performance of nanostructured materials for energy-related applications including solar and (solar) thermophotovoltaic energy conversion [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17], radiative cooling [18][19][20][21][22][23], incandescent lighting [24][25][26][27], among others. Multilayer planar nanomaterials, stacks of flat materials with nanoscale thickness, have emerged as promising candidates for such applications because they present highly tunable optical and thermal emission properties and are relatively easy to fabricate.…”