Comparative study on PS material of EAPSM for flat panel display

Jeong, Jin-Woo; Song, Jang‐Kun; Lee, Ho-Jin; Kyu-Sik, Kim; Jeong, Woo-Gun; Yoon, Young-Jin; Yun, Sang-Pil; Jung, Sung-Mo

doi:10.1117/12.2241325

Cited by 1 publication

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“…When single junction cells are connected in series, it provides significantly higher open circuit voltage (V oc ), while if they are connected in parallel, they could obtain higher short circuit current density (J sc ). Today, there are many types of tandem cells such as small molecules, [11][12] dye-sensitized, [13][14][15] inorganic, [16][17][18] hybrid, [19][20][21][22][23] as well as polymer [24][25][26][27] Apart from high efficiency tandem cells, a primary challenge when fabricating tandem cells is finding an ideal interconnecting layer (ICL) that not only connects, but also physically separates the front and rear subcells. Previously, researchers have proposed using transparent conductive oxide for the ICL due to its low sheet resistance and high optical transparencies in the visible region which is beneficial also for photon transmission.…”

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confidence: 99%

High-Performance Inverted Tandem Polymer Solar Cells Utilizing Thieno[3,4-c]pyrrole-4,6-dione Copolymer

Yusoff

Lee

Kim

et al. 2014

ACS Appl. Mater. Interfaces

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We demonstrated the inverted solution processed tandem polymer solar cells, in which transparent pH-neutral poly(3,4-ethylenedioxylenethiophene)-polystylene sulfonic acid (PEDOT:PSS) and lithium zinc oxide layers were used as a recombination layer. We have used poly(di(2-ethylhexyloxy)benzo[1,2-b:4,5-b']dithiophene-co-octylthieno[3,4-c]pyrrole-4,6-dione):[6,6]-phenyl-C61 butyric acid methyl ester (PBDTTPD:PC61BM) and poly[(4,4'-bis(2-ethylhexyl)dithieno[3,2-b:2',3'-d] silole)-2,6-diyl-alt-(2,1,3-benzothiadiazole)-4,7-diyl]:[6,6]-phenyl-C70 butyric acid methyl ester (PSBTBT:PC70BM) as the active layers for front and rear subcells, respectively. The pH-neutral PEDOT:PSS/LZO serves as an electron- and hole-collecting and recombination layer. Our tandem solar cells showed a high open circuit voltage (Voc) of 1.54 V, a short circuit current density (Jsc) of 7.55 mA/cm(2), and a fill factor (FF) of 64.79% along with the power conversion efficiency of 7.53%. The Voc value of our tandem solar cells is an ideal summation of Voc values from front and rear subcells.

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