Solution-processed bulk heterojunction organic solar cells based on an oligothiophene derivative

Table I. The Voc, Jsc, FF, and PCE of the photovoltaic devices with different blends.
Ratios of the blends (wt/wt)	Voc (V)	Jsc (mA cm−2)	FF	PCE (%)
DCN7T:PCBM (1:0.6)	0.60	0.29	0.23	0.04
DCN7T:PCBM (1:1)	0.88	6.6	0.19	1.1
DCN7T:PCBM (1:1.4)	0.88	12.4	0.34	3.7
DCN7T:PCBM (1:1.8)	0.78	10.2	0.40	3.2

Applied Physics Letters 97(2):023303 (2010)  

Solution-Processed Squaraine Bulk Heterojunction Photovoltaic Cells

Table 1. Summary of Solar Cell Characteristics of Different SQ:PC₇₀BM Blend Ratios and a SQ/C₆₀ Planar Control Cell

SQ:PC70BM ratio	Voc (V)	JSC (mA/cm2)	FF	J0 (mA/cm2)	ηp (%) at P0 = 1 sun	ηp (%) (max)	P0 at max ηp (mW/cm2)
3:1	0.68(±0.03)	1.79(±0.19)	0.26(±0.01)	2.8×10−2	0.32(±0.01)	0.32(±0.01)	100
1:1	0.81(±0.01)	3.61(±0.03)	0.31(±0.01)	1.1×10−2	0.90(±0.01)	0.90(±0.01)	100
1:2	0.87(±0.01)	8.33(±0.50)	0.29(±0.01)	3.7×10−7	2.1 (±0.1)	4.1(±0.2)	2
1:3	0.84(±0.01)	8.83(±0.34)	0.33(±0.01)	8.7×10−6	2.4 (±0.1)	3.0(±0.1)	2
1:6	0.89(±0.01)	8.85(±0.22)	0.35(±0.01)	6.2×10−7	2.7 (±0.1)	3.3(±0.1)	20
1:6/BCP	0.84(±0.01)	9.33(±0.12)	0.36(±0.01)	2.7×10−7	2.9 (±0.2)	3.8(±0.2)	0.2
SQ:PC60BM 1:6	0.78(±0.01)	9.17(±0.25)	0.42(±0.01)	1.6×10−5	3.0 (±0.1)	3.6(±0.1)	2
SQ/C60	0.79(±0.01)	8.90(±0.25)	0.54(±0.02)	1.2×10−6	3.8 (±0.2)	4.1(±0.2)	100
SQ/C70	0.72(±0.01)	8.29(±0.25)	0.45(±0.02)	1.1×10−5	2.7 (±0.2)	3.1(±0.2)	20

ACS Nano, 2010, 4 (4), pp 1927–1934

Marked Alkyl- vs Alkenyl-Substitutent Effects on Squaraine Dye Solid-State Structure, Carrier Mobility, and Bulk-Heterojunction Solar Cell Efficiency

DOI: 10.1021/ja100520q

Table 1. Comparison of Squaraine:PC_xxBM BHJ Photovoltaic Cells^a,b

Sqr./PCxxBM (wt:wt)]	dhtc [nm]	Dald [nm]	Jsc [mA/cm2]	Voc [V]	FF [%]	PCE (PCEmax) [%]
1/PC61BM (1:1)	50	65	3.83	0.49	34	0.63(0.68)
2/PC61BM (1:1)	50	65	4.31	0.59	34	0.87(0.99)
1/PC61BM (1:3)	75	35	4.13	0.54	33	0.77(0.78)
2/PC61BM (1:3)	75	35	5.15	0.56	37	1.10(1.20)
2/PC61BM (1:3)e	75	35	5.68	0.59	39	1.34(1.45)
1/PC71BM (1:3)	75	35	6.40	0.52	35	1.12(1.29)
2/PC71BM (1:3)	75	35	8.21	0.56	37	1.72(1.75)
1/PC71BM (1:3)e	75	50	7.16	0.55	37	1.39(1.47)
2/PC71BM (1:3)e	75	35	9.32	0.57	37	1.99(2.05)

Solution Processable Fluorenyl Hexa-peri-hexabenzocoronenes in Organic Field-Effect Transistors and Solar Cells

Device performance of BHJ solar cells with active layers consisting of 1:2 FHBC/PC61BM blends. Active layer thickness was 60-70 nm, and device area was 0.2 cm2. The numbers shown are average values over several devices.

Donor Annealing 150 °C, 15 s Voc [V] Jsc [mA cm-2] FF [%] [a] 4 No 0.58 -0.18 0.31 0.03 4 Yes 0.61 -0.17 0.32 0.03 5 No 0.84 -1.69 0.37 0.53 5 Yes 0.87 -2.03 0.60 1.06 6 No 0.93 -1.87 0.45 0.78 6 Yes 0.90 -2.68 0.61 1.46

[a] = Jsc × Voc × FF.

10.1002/adfm.200901827