Ordered polycrystalline thin films for high performance CdTe/CdS solar cells

Carbon nanotube arrays for photovoltaic applications

“…However, the maximum reported effi ciency is ~16%. 3 Several studies have focused on improving the effi ciency of CdTebased solar cells by reducing crystal defects and optimizing interface properties between CdTe and its complementary cell material. [4][5][6][7][8] Recently, fullerenes have been proposed for materials to be used in photovoltaic applications.…”

Effect of annealing on properties of electrochemically deposited CdTe thin films

“…In the conventional solar cells, the wide band gap hetero-junction partner CdS is first deposited on the transparent conducting glass substrate and the absorber layer CdTe is developed over the CdS layer [12][13][14][15]. CdTe films grown onto very thin stainless steel, nickel and molybdenum substrates have also been reported [16][17][18][19].…”

Ordered CdTe/CdS Arrays for High-Performance Solar Cells

“…Many studies have identified various efficiency loss mechanisms, 7,8 one of which is the nonuniformity of the crystals in polycrystalline films. 2,[9][10][11][12] In this paper, the phrase ''random polycrystalline'' refers to the situation in which the morphology and crystal quality of the grains are uncorrelated or only slightly correlated. The term ''nonuniformity'' describes a wide variation in the morphology and crystal quality of the grains.…”

“…Recently, our group demonstrated a method to selectively grow CdTe, which we call the ordered polycrystalline approach. 9 Using this approach, we have now grown dense arrays of uniform CdTe mesas on CdS. We believe that this ordered structure has several advantages over random polycrystalline films.…”