有机光伏的新趋势:三元共混聚合物太阳能电池（英文）
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摘要
过去几年,三元共混聚合物太阳能电池作为一种新型的共混结构电池,由于其优秀的潜质受到国内外研究学者的广泛关注.相较于传统的二元共混聚合物太阳能电池,这种三元共混结构能有效地提高太阳能电池的各项参数,从而使电池的光电转换效率有了大幅度的提升.本综述主要总结了制备高效率三元共混太阳能电池的设计思路并介绍了这一领域的最新进展,讨论了三元共混聚合物太阳能电池中第三组分的主要作用和表征方法.
In the past few years, ternary polymer solar cells(PSCs) have emerged as a promising structure to simultaneously improve all solar cell parameters compared with traditional binary PSCs. The third component in ternary PSCs can play versatile functions to enhance the device performance.In this review, we summarize the design rules for fabricating high-performance ternary PSCs and introduce the recent progress in this field. In addition, the characterization methods for determining the role of the third component played in ternary PSCs are described.
In the past few years, ternary polymer solar cells(PSCs) have emerged as a promising structure to simultaneously improve all solar cell parameters compared with traditional binary PSCs. The third component in ternary PSCs can play versatile functions to enhance the device performance.In this review, we summarize the design rules for fabricating high-performance ternary PSCs and introduce the recent progress in this field. In addition, the characterization methods for determining the role of the third component played in ternary PSCs are described.
引文
1 Günes S,Neugebauer H,Sariciftci NS.Conjugated polymer-based organic solar cells.Chem Rev,2007,107:1324–1338
2 Thompson BC,Fréchet JMJ.Polymer–fullerene composite solar cells.Angew Chem Int Ed,2008,47:58–77
3 Lin Y,Li Y,Zhan X.Small molecule semiconductors for high-efficiency organic photovoltaics.Chem Soc Rev,2012,41:4245–4272
4 Yu G,Gao J,Hummelen JC,et al.Polymer photovoltaic cells:enhanced efficiencies via a network of internal donor-acceptor heterojunctions.Science,1995,270:1789–1791
5 Tang CW.Two-layer organic photovoltaic cell.Appl Phys Lett,1986,48:183
6 Zhao J,Li Y,Yang G,et al.Efficient organic solar cells processed from hydrocarbon solvents.Nat Energy,2016,1:15027
7 ZhaoW,Qian D,Zhang S,et al.Fullerene-free polymer solar cells with over 11%efficiency and excellent thermal stability.AdvMater,2016,28:4734–4739
8 Ameri T,Khoram P,Min J,et al.Organic ternary solar cells:a review.Adv Mater,2013,25:4245–4266
9 ShockleyW,Queisser HJ.Detailed balance limit of efficiency of p-n junction solar cells.J Appl Phys,1961,32:510
10 Li W,Furlan A,Hendriks KH,et al.Efficient tandem and triple-junction polymer solar cells.J Am Chem Soc,2013,135:5529–5532
11 You J,Chen CC,Hong Z,et al.10.2%Power conversion efficiency polymer tandem solar cells consisting of two identical sub-cells.Adv Mater,2013,25:3973–3978
12 You J,Dou L,Yoshimura K,et al.A polymer tandem solar cell with 10 .6%power conversion efficiency.Nat Commun,2013,4:1446
13 Kang H,Kee S,Yu K,et al.Simplified tandem polymer solar cells with an ideal self-organized recombination layer.AdvMater,2015,27 :1408–1413
14 Zhang J,Zhang Y,Fang J,et al.Conjugated polymer–small molecule alloy leads to high efficient ternary organic solar cells.J Am Chem Soc,2015,137:8176–8183
15 An Q,Zhang F,Zhang J,et al.Versatile ternary organic solar cells:a critical review.Energy Environ Sci,2016,9:281–322
16 Chen YC,Hsu CY,Lin RYY,et al.Materials for the active layer of organic photovoltaics:ternary solar cell approach.ChemSusChem,2013,6:20–35
17 Khlyabich PP,Burkhart B,Rudenko AE,et al.Optimization and simplification of polymer–fullerene solar cells through polymer and active layer design.Polymer,2013,54:5267–5298
18 Yang L,Yan L,You W.Organic solar cells beyond one pair of donor–acceptor:ternary blends and more.J Phys Chem Lett,2013,4:1802–1810
19 Cheng P,ZhanX.Versatile third components for efficient and stable organic solar cells.Mater Horiz,2015,2:462–485
20 Lu L,Kelly MA,You W,et al.Status and prospects for ternary organic photovoltaics.Nat Photon,2015,9:491–500
21 Koppe M,Egelhaaf HJ,Dennler G,et al.Near IR sensitization of organic bulk heterojunction solar cells:towards optimization of the spectral response of organic solar cells.Adv FunctMater,2010,20:338 –346
22 Yang L,Zhou H,Price SC,et al.Parallel-like bulk heterojunction polymer solar cells.J Am Chem Soc,2012,134:5432–5435
23 Yang YM,ChenW,Dou L,et al.High-performancemultiple-donor bulk heterojunction solar cells.Nat Photon,2015,9:190–198
24 Derue L,Dautel O,Tournebize A,et al.Thermal stabilisation of polymer-fullerene bulk heterojunction morphology for efficient photovoltaic solar cells.Adv Mater,2014,26:5831–5838
25 Liao MH,Tsai CE,Lai YY,et al.Morphological stabilization by supramolecular perfluorophenyl-C60 interactions leading to efficient and thermally stable organic photovoltaics.Adv FunctMater,2014,24:1418–1429
26 Campoy-Quiles M,Kanai Y,El-basaty A,et al.Ternary mixing:a simple method to tailor the morphology of organic solar cells.Org Electron,2009,10:1120–1132
27 Zhang Y,Deng D,Lu K,et al.Synergistic effect of polymer and small molecules for high-performance ternary organic solar cells.Adv Mater,2015,27:1071–1076
28 Lu L,Xu T,Chen W,et al.Ternary blend polymer solar cells with enhanced power conversion efficiency.Nat Photon,2014,8:716 –722
29 Faist MA,Shoaee S,Tuladhar S,et al.Understanding the reduced efficiencies of organic solar cells employing fullerene multiadducts as acceptors.Adv Energy Mater,2013,3:744–752
30 Shao S,Zheng K,Pullerits T,et al.Enhanced performance of inverted polymer solar cells by using poly(ethylene oxide)-modified ZnO as an electron transport layer.ACS Appl Mater Interfaces,2013,5:380–385
31 Cha H,Chung DS,Bae SY,et al.Complementary absorbing starshaped small molecules for the preparation of ternary cascade energy structures in organic photovoltaic cells.Adv Funct Mater,2013,23:1556–1565
32 Kang H,Kim KH,Kang TE,et al.Effect of fullerene tris-adducts on the photovoltaic performance of P3HT:fullerene ternary blends.ACS Appl Mater Interfaces,2013,5:4401–4408
33 Huang JH,Velusamy M,Ho KC,et al.A ternary cascade structure enhances the efficiency of polymer solar cells.JMater Chem,2010,20 :2820–2825
34 Hoppe H,Sariciftci NS.Polymer solar cells.In:Marder SR,Lee KS(eds.).Photoresponsive Polymers II.Heidelberg:Springer,2008,1.86
35 Li Y,Zou Y.Conjugated polymer photovoltaic materials with broad absorption band and high charge carrier mobility.Adv Mater,2008,20:2952–2958
36 Liu S,You P,Li J,et al.Enhanced efficiency of polymer solar cells by adding a high-mobility conjugated polymer.Energy Environ Sci,2015,8:1463–1470
37 Chen H,Guo Y,Yu G,et al.Highlyπ-extended copolymers with diketopyrrolopyrrole moieties for high-performance field-effect transistors.Adv Mater,2012,24:4618–4622
38 Li J,Zhao Y,Tan HS,et al.A stable solution-processed polymer semiconductor with record high-mobility for printed transistors.Sci Rep,2012,2:754
39 Lu H,Zhang X,Li C,et al.Performance enhancement of polymer solar cells by using two polymer donors with complementary absorption spectra.Macromol Rapid Commun,2015,36:1348–1353
40 Kouijzer S,LiW,WienkMM,et al.Charge transfer state energy in ternary bulk-heterojunction polymer–fullerene solar cells.J Photon Energy,2015,5:057203
41 Lu L,Chen W,Xu T,et al.High-performance ternary blend polymer solar cells involving both energy transfer and hole relay processes.Nat Commun,2015,6:7327
42 Liu T,Huo L,Sun X,et al.Ternary organic solar cells based on two highly efficient polymer donors with enhanced power conversion efficiency.Adv Energy Mater,2016,6:1502109
43 Kan Z,Colella L,Canesi EV,et al.Charge transport control via polymer polymorph modulation in ternary organic photovoltaic composites.J Mater Chem A,2016,4:1195–1201
44 Xiao L,Gao K,Zhang Y,et al.A complementary absorption small molecule for efficient ternary organic solar cells.J Mater Chem A,2016,4:5288–5293
45 Benten H,Nishida T,Mori D,et al.High-performance ternary blend all-polymer solar cells with complementary absorption bands from visible to near-infrared wavelengths.Energy EnvironSci,2016,9:135–140
46 Ko SJ,Lee W,Choi H,et al.Improved performance in polymer solar cells using mixed PC61BM/PC71 BM acceptors.Adv Energy Mater,2015,5:1401687
47 Cheng P,Li Y,Zhan X.Efficient ternary blend polymer solar cells with indene-C60 bisadduct as an electron-cascade acceptor.Energy Environ Sci,2014,7:2005–2011
48 Shi H,FuW,ShiM,et al.A solution-processable bipolar diketopyrrolopyrrolemolecule used as both electron donor and acceptor for efficient organic solar cells.J Mater Chem A,2015,3:1902–1905
49 Liu W,Shi H,Fu W,et al.Efficient ternary blend polymer solar cells with a bipolar diketopyrrolopyrrole smallmolecule as cascade material.Org Electron,2015,25:219–224
50 Vandewal K,Tvingstedt K,Gadisa A,et al.Relating the open-circuit voltage to interface molecular properties of donor:acceptor bulk heterojunction solar cells.Phys Rev B,2010,81:125204
51 Graham KR,Erwin P,Nordlund D,et al.Re-evaluating the role of sterics and electronic coupling in determining the open-circuit voltage of organic solar cells.Adv Mater,2013,25:6076–6082
52 Graham KR,Cabanetos C,Jahnke JP,et al.Importance of the donor:fullerene intermolecular arrangement for high-efficiency organic photovoltaics.J Am Chem Soc,2014,136:9608–9618
53 Blom PWM,Mihailetchi VD,Koster LJA,et al.Device physics of polymer:fullerene bulk heterojunction solar cells.Adv Mater,2007,19:1551–1566
54 Mozer AJ,Sariciftci NS,Lutsen L,et al.Charge transport and recombination in bulk heterojunction solar cells studied by the photoinduced charge extraction in linearly increasing voltage technique.Appl Phys Lett,2005,86:112104
55 Ito S,Chen P,Comte P,et al.Fabrication of screen-printing pastes from TiO2 powders for dye-sensitised solar cells.Prog PhotovoltRes Appl,2007,15:603–612
56 Gilot J,Barbu I,WienkMM,et al.The use of ZnO as optical spacer in polymer solar cells:theoretical and experimental study.Appl Phys Lett,2007,91:113520
57 Leong WL,Cowan SR,Heeger AJ.Differential resistance analysis of charge carrier losses in organic bulk heterojunction solar cells:observing the transition from bimolecular to trap-assisted recombination and quantifying the order of recombination.Adv Energy Mater,2011,1:517–522
58 Tuladhar SM,Poplavskyy D,Choulis SA,et al.Ambipolar charge transport in films of methanofullerene and poly(phenylenevinylene)/methanofullerene blends.Adv Funct Mater,2005,15:1171–1182
59 Gasparini N,Salvador M,Fladischer S,et al.An alternative strategy to adjust the recombination mechanism of organic photovoltaics by implementing ternary compounds.Adv Energy Mater,2015,5:1501527
60 Koster LJA,Mihailetchi VD,Ramaker R,et al.Light intensity dependence of open-circuit voltage of polymer:fullerene solar cells.Appl Phys Lett,2005,86:123509
61 Shuttle CG,O’regan B,Ballantyne AM,et al.Experimental determination of the rate lawfor charge carrier decay in a polythiophene:Fullerene solar cell.Appl Phys Lett,2008,92:093311
62 Hamilton R,Shuttle CG,O’regan B,et al.Recombination in annealed and nonannealed polythiophene/fullerene solar cells:transient photovoltage studies versus numerical modeling.J Phys Chem Lett,2010,1:1432–1436
63 Street RA,Schoendorf M,Roy A,et al.Interface state recombination in organic solar cells.Phys Rev B,2010,81:205307
64 Jusa G,Viliunas M,Arlauskas K,et al.Space-charge-limited photocurrent transients:the influence of bimolecular recombination.Phys Rev B,1995,51:16668
65 Pivrikas A,Jusa G,Oterbacka R,et al.Langevin recombination and space-charge-perturbed current transients in regiorandom poly(3-hexylthiophene).Phys Rev B,2005,71:125205
66 Smilgies DM.Scherrer grain-size analysis adapted to grazing-incidence scattering with area detectors.J Appl Crystallogr,2009,42:1030–1034
2 Thompson BC,Fréchet JMJ.Polymer–fullerene composite solar cells.Angew Chem Int Ed,2008,47:58–77
3 Lin Y,Li Y,Zhan X.Small molecule semiconductors for high-efficiency organic photovoltaics.Chem Soc Rev,2012,41:4245–4272
4 Yu G,Gao J,Hummelen JC,et al.Polymer photovoltaic cells:enhanced efficiencies via a network of internal donor-acceptor heterojunctions.Science,1995,270:1789–1791
5 Tang CW.Two-layer organic photovoltaic cell.Appl Phys Lett,1986,48:183
6 Zhao J,Li Y,Yang G,et al.Efficient organic solar cells processed from hydrocarbon solvents.Nat Energy,2016,1:15027
7 ZhaoW,Qian D,Zhang S,et al.Fullerene-free polymer solar cells with over 11%efficiency and excellent thermal stability.AdvMater,2016,28:4734–4739
8 Ameri T,Khoram P,Min J,et al.Organic ternary solar cells:a review.Adv Mater,2013,25:4245–4266
9 ShockleyW,Queisser HJ.Detailed balance limit of efficiency of p-n junction solar cells.J Appl Phys,1961,32:510
10 Li W,Furlan A,Hendriks KH,et al.Efficient tandem and triple-junction polymer solar cells.J Am Chem Soc,2013,135:5529–5532
11 You J,Chen CC,Hong Z,et al.10.2%Power conversion efficiency polymer tandem solar cells consisting of two identical sub-cells.Adv Mater,2013,25:3973–3978
12 You J,Dou L,Yoshimura K,et al.A polymer tandem solar cell with 10 .6%power conversion efficiency.Nat Commun,2013,4:1446
13 Kang H,Kee S,Yu K,et al.Simplified tandem polymer solar cells with an ideal self-organized recombination layer.AdvMater,2015,27 :1408–1413
14 Zhang J,Zhang Y,Fang J,et al.Conjugated polymer–small molecule alloy leads to high efficient ternary organic solar cells.J Am Chem Soc,2015,137:8176–8183
15 An Q,Zhang F,Zhang J,et al.Versatile ternary organic solar cells:a critical review.Energy Environ Sci,2016,9:281–322
16 Chen YC,Hsu CY,Lin RYY,et al.Materials for the active layer of organic photovoltaics:ternary solar cell approach.ChemSusChem,2013,6:20–35
17 Khlyabich PP,Burkhart B,Rudenko AE,et al.Optimization and simplification of polymer–fullerene solar cells through polymer and active layer design.Polymer,2013,54:5267–5298
18 Yang L,Yan L,You W.Organic solar cells beyond one pair of donor–acceptor:ternary blends and more.J Phys Chem Lett,2013,4:1802–1810
19 Cheng P,ZhanX.Versatile third components for efficient and stable organic solar cells.Mater Horiz,2015,2:462–485
20 Lu L,Kelly MA,You W,et al.Status and prospects for ternary organic photovoltaics.Nat Photon,2015,9:491–500
21 Koppe M,Egelhaaf HJ,Dennler G,et al.Near IR sensitization of organic bulk heterojunction solar cells:towards optimization of the spectral response of organic solar cells.Adv FunctMater,2010,20:338 –346
22 Yang L,Zhou H,Price SC,et al.Parallel-like bulk heterojunction polymer solar cells.J Am Chem Soc,2012,134:5432–5435
23 Yang YM,ChenW,Dou L,et al.High-performancemultiple-donor bulk heterojunction solar cells.Nat Photon,2015,9:190–198
24 Derue L,Dautel O,Tournebize A,et al.Thermal stabilisation of polymer-fullerene bulk heterojunction morphology for efficient photovoltaic solar cells.Adv Mater,2014,26:5831–5838
25 Liao MH,Tsai CE,Lai YY,et al.Morphological stabilization by supramolecular perfluorophenyl-C60 interactions leading to efficient and thermally stable organic photovoltaics.Adv FunctMater,2014,24:1418–1429
26 Campoy-Quiles M,Kanai Y,El-basaty A,et al.Ternary mixing:a simple method to tailor the morphology of organic solar cells.Org Electron,2009,10:1120–1132
27 Zhang Y,Deng D,Lu K,et al.Synergistic effect of polymer and small molecules for high-performance ternary organic solar cells.Adv Mater,2015,27:1071–1076
28 Lu L,Xu T,Chen W,et al.Ternary blend polymer solar cells with enhanced power conversion efficiency.Nat Photon,2014,8:716 –722
29 Faist MA,Shoaee S,Tuladhar S,et al.Understanding the reduced efficiencies of organic solar cells employing fullerene multiadducts as acceptors.Adv Energy Mater,2013,3:744–752
30 Shao S,Zheng K,Pullerits T,et al.Enhanced performance of inverted polymer solar cells by using poly(ethylene oxide)-modified ZnO as an electron transport layer.ACS Appl Mater Interfaces,2013,5:380–385
31 Cha H,Chung DS,Bae SY,et al.Complementary absorbing starshaped small molecules for the preparation of ternary cascade energy structures in organic photovoltaic cells.Adv Funct Mater,2013,23:1556–1565
32 Kang H,Kim KH,Kang TE,et al.Effect of fullerene tris-adducts on the photovoltaic performance of P3HT:fullerene ternary blends.ACS Appl Mater Interfaces,2013,5:4401–4408
33 Huang JH,Velusamy M,Ho KC,et al.A ternary cascade structure enhances the efficiency of polymer solar cells.JMater Chem,2010,20 :2820–2825
34 Hoppe H,Sariciftci NS.Polymer solar cells.In:Marder SR,Lee KS(eds.).Photoresponsive Polymers II.Heidelberg:Springer,2008,1.86
35 Li Y,Zou Y.Conjugated polymer photovoltaic materials with broad absorption band and high charge carrier mobility.Adv Mater,2008,20:2952–2958
36 Liu S,You P,Li J,et al.Enhanced efficiency of polymer solar cells by adding a high-mobility conjugated polymer.Energy Environ Sci,2015,8:1463–1470
37 Chen H,Guo Y,Yu G,et al.Highlyπ-extended copolymers with diketopyrrolopyrrole moieties for high-performance field-effect transistors.Adv Mater,2012,24:4618–4622
38 Li J,Zhao Y,Tan HS,et al.A stable solution-processed polymer semiconductor with record high-mobility for printed transistors.Sci Rep,2012,2:754
39 Lu H,Zhang X,Li C,et al.Performance enhancement of polymer solar cells by using two polymer donors with complementary absorption spectra.Macromol Rapid Commun,2015,36:1348–1353
40 Kouijzer S,LiW,WienkMM,et al.Charge transfer state energy in ternary bulk-heterojunction polymer–fullerene solar cells.J Photon Energy,2015,5:057203
41 Lu L,Chen W,Xu T,et al.High-performance ternary blend polymer solar cells involving both energy transfer and hole relay processes.Nat Commun,2015,6:7327
42 Liu T,Huo L,Sun X,et al.Ternary organic solar cells based on two highly efficient polymer donors with enhanced power conversion efficiency.Adv Energy Mater,2016,6:1502109
43 Kan Z,Colella L,Canesi EV,et al.Charge transport control via polymer polymorph modulation in ternary organic photovoltaic composites.J Mater Chem A,2016,4:1195–1201
44 Xiao L,Gao K,Zhang Y,et al.A complementary absorption small molecule for efficient ternary organic solar cells.J Mater Chem A,2016,4:5288–5293
45 Benten H,Nishida T,Mori D,et al.High-performance ternary blend all-polymer solar cells with complementary absorption bands from visible to near-infrared wavelengths.Energy EnvironSci,2016,9:135–140
46 Ko SJ,Lee W,Choi H,et al.Improved performance in polymer solar cells using mixed PC61BM/PC71 BM acceptors.Adv Energy Mater,2015,5:1401687
47 Cheng P,Li Y,Zhan X.Efficient ternary blend polymer solar cells with indene-C60 bisadduct as an electron-cascade acceptor.Energy Environ Sci,2014,7:2005–2011
48 Shi H,FuW,ShiM,et al.A solution-processable bipolar diketopyrrolopyrrolemolecule used as both electron donor and acceptor for efficient organic solar cells.J Mater Chem A,2015,3:1902–1905
49 Liu W,Shi H,Fu W,et al.Efficient ternary blend polymer solar cells with a bipolar diketopyrrolopyrrole smallmolecule as cascade material.Org Electron,2015,25:219–224
50 Vandewal K,Tvingstedt K,Gadisa A,et al.Relating the open-circuit voltage to interface molecular properties of donor:acceptor bulk heterojunction solar cells.Phys Rev B,2010,81:125204
51 Graham KR,Erwin P,Nordlund D,et al.Re-evaluating the role of sterics and electronic coupling in determining the open-circuit voltage of organic solar cells.Adv Mater,2013,25:6076–6082
52 Graham KR,Cabanetos C,Jahnke JP,et al.Importance of the donor:fullerene intermolecular arrangement for high-efficiency organic photovoltaics.J Am Chem Soc,2014,136:9608–9618
53 Blom PWM,Mihailetchi VD,Koster LJA,et al.Device physics of polymer:fullerene bulk heterojunction solar cells.Adv Mater,2007,19:1551–1566
54 Mozer AJ,Sariciftci NS,Lutsen L,et al.Charge transport and recombination in bulk heterojunction solar cells studied by the photoinduced charge extraction in linearly increasing voltage technique.Appl Phys Lett,2005,86:112104
55 Ito S,Chen P,Comte P,et al.Fabrication of screen-printing pastes from TiO2 powders for dye-sensitised solar cells.Prog PhotovoltRes Appl,2007,15:603–612
56 Gilot J,Barbu I,WienkMM,et al.The use of ZnO as optical spacer in polymer solar cells:theoretical and experimental study.Appl Phys Lett,2007,91:113520
57 Leong WL,Cowan SR,Heeger AJ.Differential resistance analysis of charge carrier losses in organic bulk heterojunction solar cells:observing the transition from bimolecular to trap-assisted recombination and quantifying the order of recombination.Adv Energy Mater,2011,1:517–522
58 Tuladhar SM,Poplavskyy D,Choulis SA,et al.Ambipolar charge transport in films of methanofullerene and poly(phenylenevinylene)/methanofullerene blends.Adv Funct Mater,2005,15:1171–1182
59 Gasparini N,Salvador M,Fladischer S,et al.An alternative strategy to adjust the recombination mechanism of organic photovoltaics by implementing ternary compounds.Adv Energy Mater,2015,5:1501527
60 Koster LJA,Mihailetchi VD,Ramaker R,et al.Light intensity dependence of open-circuit voltage of polymer:fullerene solar cells.Appl Phys Lett,2005,86:123509
61 Shuttle CG,O’regan B,Ballantyne AM,et al.Experimental determination of the rate lawfor charge carrier decay in a polythiophene:Fullerene solar cell.Appl Phys Lett,2008,92:093311
62 Hamilton R,Shuttle CG,O’regan B,et al.Recombination in annealed and nonannealed polythiophene/fullerene solar cells:transient photovoltage studies versus numerical modeling.J Phys Chem Lett,2010,1:1432–1436
63 Street RA,Schoendorf M,Roy A,et al.Interface state recombination in organic solar cells.Phys Rev B,2010,81:205307
64 Jusa G,Viliunas M,Arlauskas K,et al.Space-charge-limited photocurrent transients:the influence of bimolecular recombination.Phys Rev B,1995,51:16668
65 Pivrikas A,Jusa G,Oterbacka R,et al.Langevin recombination and space-charge-perturbed current transients in regiorandom poly(3-hexylthiophene).Phys Rev B,2005,71:125205
66 Smilgies DM.Scherrer grain-size analysis adapted to grazing-incidence scattering with area detectors.J Appl Crystallogr,2009,42:1030–1034